In order to get a sharp, non-blurred photo taken handheld (or in motion), you need to take into account the shutter speed when shooting - because the longer it is, the more you can blur on the picture.
and using the golden rule that the number responsible for shutter speed must be greater than the effective one. For example, if you are shooting at a focal length of 35mm, it should be no more than 1/35 of a second, usually 1/60 or shorter. But when you use a lens with vibration reduction, this rule changes a lot.
Popular and well-known manufacturers of cameras and lenses have their own designation for the vibration reduction function. Below is a list of the most popular notations.
Stabilizers built into the lens:
Canon: IS - Image Stabilization
Nikon: VR - Vibration Reduction (vibration suppressor)
Panasonic: O.I.S. - Optical Image Stabilizer (optical image stabilizer)
Sony: Optical Steady Shot (optical shooting stabilizer)
Tamron: VC - Vibration Compensation
Sigma: OS - Optical Stabilization
In-camera stabilization:
Pentax: SR - Shake Reduction
Olympus: IS - Image Stabilizer
Sony: SSS - Super Steady Shot (Super Stabilizer Shot)
Konica Minolta: AS - Anti-Shake
I will explain the benefits of vibration suppression using the example of a lens with vibration reduction function(calculations can be made for other lenses). If, in order to get an acceptable shot at a focal length of 105mm (which is already an average telephoto lens), you need to use camera parameters that should be less than 1/105 or even 1/150 (taking into account the crop) according to the rule described above. Typically the number that can be set on the camera corresponds to 1/125 of a second. Considering that this lens, like most zooms, is not fast (dark) at an aperture of F5.6, you need to use high values ISO, which will produce a lot of noise.
If on the lens enable VR function, then you can just as well shoot at shutter speeds of about 1/20 of a second, thus reducing the ISO.
Why is this happening? The manufacturer indicates in its technical specifications that a lens or camera with vibration reduction can operate at shutter speeds of several shorter steps(longer) than without it. IN in this case this is 3 steps.
One step in photography means a difference of 2 times. Three steps will give a difference of eight times. 2^3=8 (two to the third power). So we get 1/125 divided by 8 approximately equals 1/15 of a second.
These calculations are really close to the truth, but due to the fact that manufacturers inflate the indicators, a more or less true value is learned only in practice.
For this lens at 105mm focal length(which in terms of EGF gives 157 mm) the minimum when shooting handheld is acceptable in the region of 1/15-1/30.
An example of a photo taken hand-held, shooting parameters in the caption of the picture.
1 / 25 sec ISO 1600 F5.6 105 mm + Nikkor 18-105 VR 3.5-5.6 handheld shooting
All these calculations are valid for any lens or suppression system.
As we see in the photo above, at 1/2 second (which under normal conditions is a very long shutter speed), we get absolutely acceptable handheld picture quality at low ISO.
Previously, just a couple of years ago, photographers, with long exposures, had to use a tripod, or fast lenses.
When working with fast lenses such as the 50mm F1.4 and 50mm F1.8 and shooting in difficult conditions, vibration reduction lenses provide significant competition, and sometimes beat them.
F5.6 and F1.8 differ by about 3 and a half steps, to be precise, the difference is in magnitude luminous flux the difference is 9 times. (because changing the number F two gives a change in area by 4 times, from here 5.6/1.8 = 3.11, and the difference in area is 3.11^2 = approximately 9).
We find that the gain with a fast lens is a reduction in shutter speed by 9 times, and when using VR by 8 times. In practice, both methods work when shooting in dimly lit areas.
Personally, it’s convenient for me to use and vibration reduction and high-aperture primes. Each has its own merits.
Conclusion: optical stabilizers are great for long lenses and for shooting in low light, providing benefits in reducing shutter speed without the fear of getting a blurry shot.
Don't forget about helping the project. Thank you for your attention. Arkady Shapoval.
Image stabilization- this is a technology used in photo and video filming equipment, mechanically compensating for its own angular movements cameras to prevent blurring of the image at long shutter speeds (“shuffle”).
The stabilization system is not designed to compensate for the movement of the subject and, in fact, serves as a replacement for a tripod in a certain range of shooting conditions.
The capabilities of image stabilization systems are limited. According to the most optimistic data, the gain in the permissible shutter speed is 8-16 times (3-4 exposure steps).
However, in a number of cases, automatic stabilization can be extremely useful, allowing you to increase the shutter speed by these very 3-4 steps and calmly shoot handheld in such lighting conditions and on such focal lengths lens, when without a stabilizer you would need a photo tripod. In addition, sometimes stabilization allows you to avoid a “forced” increase in the sensitivity of the matrix, which leads to an increase in the noise level.
Digital image stabilization- image processing technology in video recording equipment, which allows (in addition to compensating for camera movement) to fully or partially compensate for the movement of one of the objects in the frame and improve image quality due to less blurring of plot-important details.
Image Stabilizer - common name all parts of the camera that perform image stabilization.
Encyclopedic YouTube
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Video Basics for Photographers 6. Image Stabilization.
Optical stabilizer. Basics of photography. Lesson 18.
SONY VEGAS PRO 13 VIDEO STABILIZATION | TUTORIAL
Subtitles
Technologies have found application in photography, video filming, and in the design of astronomical telescopes and binoculars. Highest value stabilization is used in case of danger of the camera moving when shooting, at long shutter speeds and a significant focal length of the lens. In video cameras, camera movement causes visible frame-to-frame vibration. In astronomy, equipment shocks cause lens vibrations, which cause problems in registering the position of objects due to image displacements from the nominal position on the focal plane.
“Wiggle” and “frame jerking”
Operation of the stabilization system
Image stabilizers can be optical, moving matrix, or electronic (digital).
Image stabilizer sensor
The camera has built-in special sensors that operate on the principle of gyroscopes or accelerometers. These sensors constantly determine the rotation angles and speeds of movement of the camera in space and issue commands to electric drives that deflect the lens stabilizing element or matrix. With electronic (digital) image stabilization, the angles and speeds of camera movement are recalculated by the processor, which eliminates the shift.
Optical Image Stabilizer
Optical stabilization technology was picked up by other manufacturers and has proven itself in a number of telephoto lenses and cameras (Canon, Nikon, Panasonic). Various manufacturers call their implementation of optical stabilization differently:
- Canon and Kodak - Image Stabilization (IS)
- Nikon - Vibration Reduction (VR)
- Panasonic - MEGA O.I.S.(Optical Image Stabilizer)
- Sony - Optical Steady Shot
- Tamron - Vibration Compensation (VC)
- Sigma - Optical Stabilization (OS)
For film cameras, optical stabilization is the only technology to combat “shake”, since it is impossible to move the film itself, like the matrix of a digital camera.
Moving sensor image stabilizer
Especially for digital cameras, Konica Minolta has developed stabilization technology (English Anti-Shake), which was first used in 2003 in the Dimage A1 camera. In this system, the movement of the camera is compensated not by the optical element inside the lens, but by its matrix mounted on a movable platform.
Lenses are becoming cheaper, simpler and more reliable, image stabilization works with any optics. This is important for SLR cameras that have interchangeable lenses. Matrix-shift stabilization, unlike optical stabilization, does not introduce distortion into the image (perhaps other than those caused by uneven sharpness of the lens) and does not affect the lens aperture. At the same time, it is believed that matrix shift stabilization is less effective than optical stabilization.
As the focal length of the lens increases, the effectiveness of Anti-Shake decreases: at long focal lengths, the matrix has to make too fast movements with too large an amplitude, and it simply ceases to keep up with the “escaping” projection.
In addition, for high accuracy of operation, the system must know exact value the focal length of the lens, which limits the use of older zooms, and the focusing distance at short distances, which limits its performance in macro photography.
Stabilization systems with a moving matrix:
- Konica Minolta - Anti-Shake (AS);
- Sony - Super Steady Shot (SSS) - is a borrowing and development of Anti-Shake from Minolta;
- Pentax - Shake Reduction (SR) - developed by Pentax, found use in SLR cameras Pentax K100D, K10D and subsequent ones;
- Olympus - Image Stabilizer (IS) - used in some models of DSLRs, ultrasonic cameras and all Olympus mirrorless cameras.
Electronic (digital) image stabilizer
In panning mode, the stabilization system compensates only for vertical vibrations.
In September 2012, the first in the world mobile phone smartphone with optical image stabilization (OIS)
Karpukhin I. V.
The article explores methods of image stabilization. The main technical specifications, as well as the advantages and disadvantages of different methods.
Keywords: image stabilization, optical stabilizer, digital stabilizer.
Introduction
Modern requirements for optical devices come down mainly to a combination of two contradictory characteristics: high angular resolution and minimal weight and overall dimensions of the device. These requirements also apply to equipment operating on a moving or insufficiently stable base. To preserve potential optical instruments in the area of resolution, various additional mechanical devices, reducing the impact of base movement on image quality. Such devices are called image stabilization systems.
1 Image stabilization methods
There are two main methods of image stabilization: optical and digital (electronic). Electronic image stabilization uses comprehensive software algorithm improving image quality. Optical is a hardware solution.
1.1 Optical image stabilization
Optical stabilizer consists of two elements: a motion detector - a system of gyroscopes that record the movement of the device in space, and a compensating lens. The principle of operation is as follows: the compensating lens in the lens is shifted in opposite direction from the displacement registered by the sensor. As a result, the light rays in all frames fall into the same area on the light-sensitive matrix. Taking readings from the detector occurs more often than reading data from the matrix, and the lens has time to correct its position even before taking the image from the matrix. Thanks to this, there are no image shifts between frames or blur within one frame.
One of the disadvantages of an optical stabilizer is the use of expensive and complex mechanical elements in its production. In addition, the presence of an optical group of several elements can affect the lens aperture, that is, the ability to provide a particular level of image illumination for a given object brightness.
IN general case optical stabilizers are divided into two types: the first move the entire device on a movable base, the second move the optical elements inside the device. In the latter, the following elements are usually used to stabilize the optical image.
Mirrors. To change the direction of the sighting beam, a plane-parallel mirror with an internal or external reflective coating can be used. To rotate the line of sight to specified angle, the mirror is turned to half an angle.
Wedges. For a small deflection of the sighting beam with a significant mechanical movement refractive optical wedges are used. Two identical wedges turning in different sides at the same angles, form a wedge with a variable beam deflection angle.
Prism cube. Consists of two rectangular prisms, glued together by hypotenuse faces on which there are reflective coatings. The prism cube makes it possible to change the direction of the sighting beam by more than 180˚.
Dove prism, or direct vision prism. This prism wraps the optical image from top to bottom. A Dove prism is used to rotate the image around the viewing axis.
Pehan prism. Since the Dove prism has a significant length, compact devices for image rotation use a Pehan prism, which is a gluing together of a Schmidt prism and a half-pentaprism. The Pehan prism can also work in converging beams, but there is more light loss here, so it is used less often.
Liquid wedge. A cuvette with elastic walls, transparent windows, filled with a transparent, easy-to-flow liquid is used in optical image stabilization systems as an adjustable optical wedge. Depending on the inclination of the glass window, the sighting beam passing through the cuvette is deflected in one direction or another.
The number of optical elements used to stabilize the optical image is continuously increasing. Here we present only the main ones, the use of which in optical instrumentation has become traditional.
1.2 Digital image stabilization
Action digital stabilizer based on analysis of image displacement on the matrix. The image is read only from part of the matrix, thus leaving a supply of free pixels at the edges. These pixels are used to compensate for device offset. Those. When the frame shakes, the image moves across the matrix, and the processor detects the vibrations and corrects the image, shifting it in the opposite direction.
Digital stabilizers have no moving parts (in particular, optical groups of several lenses). This has a positive effect on reliability, since fewer elements are susceptible to failure. In addition, the use of digital image stabilizers allows you to increase the sensitivity of light-absorbing elements (matrix). Also, the response speed of a digital stabilizer can be higher than that of an optical stabilizer.
Digital stabilizers have a number of disadvantages compared to optical stabilizers; in particular, in poor lighting conditions, low-quality images are obtained. As the focal length of the lens increases, the efficiency decreases: at long focal lengths, the matrix has to make too fast movements with too large an amplitude, and it simply ceases to keep up with the “escaping” projection.
Thus, it is believed that matrix shift stabilization is less effective than optical stabilization.
2 Main technical characteristics
One of the main parameters characterizing the quality of operation of optical image stabilization systems is dynamic accuracy, which is determined by errors in optical image stabilization and errors in tracking the line of sight for the object under study.
The task of determining the accuracy of optical image stabilization comes down to measuring the angular deviations of the line of sight during angular and reciprocating portable movements of the base caused by the rolling of a moving object. It is necessary to take into account a number of specific features functioning of the system in systems of the class under consideration. These are, first of all, small values of stabilization and tracking errors; the need to measure the accuracy of optical image stabilization directly on the optical element, which is connected to a non-unit system kinematic connection and oscillates in inertial space, the need to measure stabilization and tracking errors when various positions system and optical element.
List of sources used
Line of sight stabilization and guidance system with increased viewing angles / V.A., Smirnov, V.S. Zakharikov, V.V. Savelyev // Gyroscopy and navigation, No. 4. St. Petersburg, 2011. P.4-11.
Automatic optical image stabilization / D. N. Eskov, Yu. P., Larionov, V. A. Novikov [etc.]. L.: Mechanical Engineering, 1988. 240 pp.
Stabilization of optical devices / A.A. Babaev-L.: Mechanical Engineering, 1975. 190 p.
Percentage of sharp images depending on shutter speed
Introduction
I use equipment from Canon and Nikon. Their stabilizers are called IS and VR. IS (Image Stabilization) is an abbreviation of Canon, VR (Vibration Reduction) is Nikon. The image stabilizer helps me get much clearer images with long lenses and also in low light conditions.
IS and VR are so important to getting great photos that I won't buy a lens without them if given the choice.
VR vs IS
VR (Nikon) and IS (Canon) are the same thing. I will use both terms interchangeably. Each manufacturer uses their own abbreviations.
Both of these systems stabilize the image to avoid blur from hand shake. This helps in many cases to do without a tripod and get sharp photos. VR and IS allow me to shoot in low light without using a tripod, except when it's really dark (twilight or night).
VR and IS work great when shooting still subjects, which is what I shoot most of the time. Of course, stabilization systems are useless for shooting moving objects, sports or children.
Some people like to use VR and IS for tracking shots, in which case the stabilizer works in one direction while in others the shot comes out blurry.
To get a sharp shot of a fast-moving subject, you will still have to use either a fast lens or more light, or raise the ISO.
The stabilizer only helps compensate for camera shake, but cannot do anything with moving objects.
Other manufacturers
Minolta, Panasonic, Olympus and Sony
Minolta (now Sony) makes DSLR cameras that have image stabilization built into the camera. I haven't tried these systems. Their advantage, according to the manufacturer, is that they work with any lenses, since the stabilizer is located in the camera and not in the lens.
Anti-Shake
Beware of such names. Most manufacturers who use this term are deceiving the consumer and simply increase the ISO to get a faster shutter speed. You can increase the ISO yourself. Typically these cameras do not compensate for hand shake like VR and IS systems do.
How do stabilizers work?
I'll skip the details, the basic principle is that motion sensors predict its direction and speed in initial phase when the photographer presses the shutter button and takes a photo.
They then use various lens or array shifters out of phase with the detected error signal to counteract this movement.
Due to this, the image is stabilized during exposure.
You can see the stabilizer in action through the viewfinder of SLR cameras or on the screen of compact cameras by pressing the shutter button halfway.
Schedule and reality
Hand shaking, which doctors call tremor, is random.
Do sufficient quantity photos in any conditions. Some will be sharper, some more blurry. The percentage of hits depends on conditions, shutter speed, and focal length.
The graph shows how the percentage of your shots that are sharp depends on the shutter speed. At very long shutter speeds, for example 30 seconds, you will almost never get a sharp shot, regardless of the presence of a stabilizer. But the probability of this is not zero, since there is a lucky chance.
At fast shutter speeds like 1/1000, you'll get sharp photos almost 100% of the time, again regardless of whether you have a stabilizer or not. But almost 100% is not pure 100%. There are exceptions to the rules.
It all comes down to the methods of probability theory and statistical analysis. Mathematicians will be able to explain this better.
The old wives' tale about shutter speeds being no longer than 1/30 or 1/(focal length) comes from the observation that most people get about 50% of their shots sharp under these conditions. This exactly corresponds to the middle section of the black curve on the graph. Being random function, a faster shutter speed produces a higher percentage of sharp shots, and vice versa.
Trick
Since photography is a game, I try to increase my chances of success by shooting continuously. I increase the shutter speed and take several shots in a row in this mode. Later I choose the sharpest ones. The longer the shutter speed, the longer the series you need to make. To get at least one sharp shot. For example, if the probability of getting a sharp shot is 10%, then I take 10 or 20 shots in a series and choose the best one. It works!
In the same way, we can get a blurry shot with a normal lens at a shutter speed of 1/250 second. But this should not happen often, otherwise learn how to use the camera.
The stabilizer in this case always increases the chances of success. I don't know of cases where this was not the case.
When is a stabilizer effective?
VR and IS provide significant improvement where the graph curves separate. Try shooting at a shutter speed of about 1/2 - 1/15 with a normal lens and you will see the difference between night and day. With shorter shutter speeds, the pictures will be sharp, but with longer shutter speeds, the stabilizer will no longer help.
Examples
Image of the room where the shots were taken
I took pictures with a Nikon D200 camera with an 18-135 lens without stabilizer and a Nikon D70 camera with an 18-200 mm VR lens. I'll show the photo from the D70 at 100% scale, and the photo from the D200 a little smaller so that they match.
Hover over to see the difference
Now do you understand why I think that it is better to buy the camera itself (the body) cheaper, and buy the lens more expensive? Remember that lenses can serve for many years, and the carcasses change almost every year. The cheaper D70 with the 18-200 lens and VR shoots much better at longer shutter speeds than the much more expensive D200 without the VR lens.
Of course, they were compared at a focal length of 28mm and a shutter speed of 1/4 second, where the stabilizer makes a big difference. At shorter shutter speeds the difference will not be as significant, but it will appear at longer focal lengths, even on a sunny day.
Hover over the image to compare a shot taken with the D200 without a VR lens and a Canon SD700 compact with IS.
Image stabilization is key to getting sharp photos in typical indoor lighting conditions. Even a small pocket camera with a stabilizer can easily beat a DSLR if you use a lens without a stabilizer, provided you are shooting in low light without a tripod.
For each of the pictures I took six pictures. With the stabilizer, five or six were sharp. Without stabilizer, five or six turned out blurry. I took quite a lot of pictures so that the sample could be called representative.
Sorry that the size of the pictures and the exposure do not match completely, as I was shooting different types cameras. Oddly enough, pictures from a pocket camera look sharper, apparently due to the fact that in-camera processing uses more sharpening compared to a DSLR.
Tripods
I usually turn off the stabilizer on a tripod, since it is not needed. But even if I forget, I don’t see a problem with it.
Many stabilization systems are smart enough to detect that the camera is on a tripod and turn off. But if you shoot with strong wind or the tripod is not very stable, a stabilizer will also help you.
Long exposure photography
If you shoot handheld with a long shutter speed, on the order of several seconds, a stabilizer will usually improve the result somewhat.
Frequency ranges
Vibration has amplitude and frequency. Stabilization systems are capable of processing vibrations only in a certain frequency band.
The range of interest to us lies in the range from 0.3 Hz to 30 Hz.
VR and IS ignore very low frequencies, as they would otherwise cause difficulties in tracking or tracking shots.
Frequencies above 30 Hz are also not particularly important. Our muscles do not contract faster than 30 times per second, and external high-frequency vibrations are filtered by our body mass and the mass of the camera.
Never place the camera on anything that vibrates at a high frequency. Hold it in your hands so that the vibrations are absorbed by your body.
Above a certain range of amplitude (vibration strength), the mechanics of the stability control system can no longer compensate to counteract a large displacement, for example, if you are removing from a car that is driving off-road.
Active or normal mode (Nikon)
If you have a switch for these parameters on your lens, it optimizes the system for different frequencies and amplitudes
Active mode is suitable for large displacement amplitudes, which are ignored in normal mode, assuming that you are doing the wiring.
I've never seen any difference in their performance, I usually shoot in normal mode. I figure that if I'm filming something moving, the VR system won't cope one way or another. Sometimes I use active mode, but not often.
Airplane
Stabilization systems are designed to compensate for hand tremors, not shooting from moving cars or helicopters. These are much stronger vibrations that require external stabilizers such as gyroscopes.
When filming from an airplane, never rest the camera on a door or any other part of the airplane. Instead, hold the camera in your hands and sit up straight with your shoulders away from the seat, so your body absorbs maximum quantity vibrations
As always, you have to proceed by trial and error. When I was shooting out of the open windows of a small plane, Nikon's VR system couldn't handle it, which makes sense since it's not designed for that.
Very fast shutter speed
VR and IS work very well at fast shutter speeds too, especially with long lenses where you can feel the difference.
Thanks to modern digital technology, we can immediately evaluate the result, which was impossible when shooting on film. If the image is even slightly blurry, it can be easily seen on the camera screen.
So even shots at 1/1000th of a second with 300mm lenses can improve when using a stabilizer. I use it all the time.
Although the stabilization system does not respond to high vibration frequencies, these vibrations were never an issue for short shutter speeds.
The problem when shooting with a short shutter speed is the same - vibration with a frequency of 0.3 Hz - 30 Hz. A fast shutter speed reduces the effect of vibration, so VR is not as effective at fast shutter speeds, however, with long lenses that are very sensitive to vibration, VR and IS are quite useful.
With short focal length lenses at fast shutter speeds vibration is generally not an issue, however a stabilizer can improve things here as much as possible.
Although the vibrations high frequency are not a problem, they can generate subharmonics falling in the range of 0.3 Hz - 30 Hz, which are amplified by long lenses. The stabilization system effectively copes with just such vibrations.
Failures
VR and IS systems can sometimes fail and operate with errors. If this happens, turn them off until you can return the lens for repair.
My first Canon 28-135mm IS had an interesting stabilizer defect. It worked well at long shutter speeds, but in daylight and at short shutter speeds the pictures turned out worse!
I sent it to Canon under warranty and Canon quickly replaced the system, resulting in the lens working flawlessly.
This is why I always test newly purchased lenses. I shoot with and without stabilization, at different shutter speeds and focal lengths, to find out where I get best results. This way you can even catch a rare manufacturing defect.
Using IS and VR makes a big difference in getting sharp images down to about 1/60th of a second with normal lenses and up to about 1/500th of a second with telephoto lenses.
Shutter speeds longer than a few seconds reduce the stabilization's effectiveness, but it's still better than nothing if you don't have a tripod or can't stand the camera on something solid.
The stabilizer can help even at very fast shutter speeds with long lenses
My best pictures made on outdoors at dusk. That's why I love VR and IS
I always keep the stabilization system turned on, except when the device is on a very strong tripod. I also use a stabilizer when shooting with monopods.
Dear friends, hello! I’m in touch with you, Timur Mustaev. In my article, I would like to discuss with you a very important part of the camera, without which it is extremely difficult, and sometimes simply impossible, to get a good picture. I mean image stabilizer.
The consequences of the lack of stabilization extremely spoil the picture. They may not be visible to a beginner, but a professional will notice them immediately. To understand everything, first of all, you need to understand what a “stabilizer” is and an optical or digital image stabilizer, which is better to choose.
How to reduce vibration in a camera?
It’s not enough to say that a camera with a stabilizer should be a priority. Don't hesitate to take this one! In the end, this function can be turned off, and it is even recommended to do so, for example, when using a tripod. But you are unlikely to want to part with it.
You begin to understand the meaning of stabilization immediately when you compare pictures with and without it.
Of course, if it is missing, this is not a death sentence, and many cameras do not have it. But this does not mean that the camera is not worth buying because of this.
Stabilizer- this is a device inside the camera, the work of which is aimed at combating vibrations during the shooting process, eliminating possible interference in the photograph due to camera movement
The blur of the frame cannot always be noticed during the photography process, especially when it is small, but if you look at every detail on the computer, then most likely something will be fuzzy or as if in a fog. These are the consequences of destabilization.
Naturally, a photographer's stability is not always ideal. Your hands may shake a little, there may be vibrations from the ground or highway, it may be windy outside, etc.
And also manipulations with and are convenient only in some cases, but they are not without drawbacks.
Reducing noise, adding sharpness to a frame, and much more can be achieved by processing in editors, but don’t you regret wasting your time on these little things? It is best to have a stabilization system built into the device.
The stabilization control can be placed on the side of the lens or in the menu if the stabilizer is digital.
Let's take a closer look at the options for camera stabilizers and their features.
Types of stabilizers
I don’t think it’s worth saying that a stabilizer in a camera is a mandatory and very useful thing. The question is: if you have a choice, should you give preference to optical or digital? In addition to the fact that they are associated with different areas camera, they have different features work.
So, an optical stabilization system is optics, a set of lenses located in the camera lens. It works on the principle that the lenses move in the opposite side from the direction in which the apparatus itself moves, vibrations are thereby dampened. Users note its complex design and relative high cost.
Among the advantages– a clear, already balanced picture that is displayed both in the viewfinder and on the matrix. That is, first a good picture is created, then it is transferred to the sensor. Also, autofocus works well on such a picture, therefore, there are fewer focusing errors on the subject.
True, there are also disadvantages. Since the stabilizer is located outside the camera body itself, if the lens does not have this function, it means that you will have a very difficult time when shooting. When using, you will have to focus on a certain type of lens, with VR (Vibration Reduction) for Nikon or IS (Image Stabilizer) for Canon. Fortunately, there are no problems with choosing optics now.
IN this category Optical stabilizers can also be classified as those based on matrix shift. Here: the camera moves - the matrix shifts by a certain distance. The moving platform of the photosensitive device adapts to the resulting image.
In this option, of course, you don’t have to look for lenses with stabilization, which is quite convenient. Although in this case the matrix will see the image changed, but the focusing system and the photographer in the viewfinder will not.
In addition, they note that such a stabilizer does not perform its duties well, and its effect is reduced.
What about the digital (electronic) stabilizer?
In fact, manufacturers do not at all assume the presence of a certain device in the camera, which takes up extra bed. The whole thing is taken care of by a powerful processor, and it is installed in it necessary program to suppress motion vibrations.
A camera with a digital stabilizer may cost less than one with an optical stabilizer, however, it has low quality. To some extent, a digital stabilizer can only be called post-processing of an image by a camera, which spends a decent percentage of its work not on creating an image, but on resisting camera shake.
Stabilization will also work poorly if the camera has a zoom lens.
So, I think we have fully covered the topic of stabilizers and types. And the opinion about which one is better remains with the photographers. Try it yourself, evaluate their capabilities and make a choice. At the same time, do not forget that the stabilizer has specific functions and you should not expect more.
For example, it will not be able to remove the “wiggle” of an object if it is moving quickly, or if you yourself are in active motion. It's about only about changes in camera position.
If you are serious about photography and want to learn all the most important things about photography and the camera, about how to take good pictures. I would like to recommend you the video course "" or " My first MIRROR».
Why these courses? It's simple. They are one of the best on the web. There is a lot of rubbish on the Internet now that does not bring any knowledge. I recommend these courses to all my friends who are starting to get interested in photography. They are very easy to understand and contain only the most important and necessary things to understand. And I won’t give bad advice to my friends!
Digital SLR for a beginner 2.0- for fans of DSLR NIKON.
My first MIRROR- for fans of DSLR CANON.
Happy readers! Creative success and always be on alert - stay in the center new information from the photograph. To do this, visit my blog and subscribe to it. If you liked the article, share it with your friends, let them discover something new for themselves.
All the best to you, Timur Mustaev.
