At the first purchase the camera you see a lot of lenses, the IS or VR designations on them. This is image stabilization or vibration reduction. They mean the same thing except Canon uses the first term Nikon uses the second. These mechanisms are built into the camera in order to "avoid camera shake." I will discuss how to get rid of camera shake and why I bought a VR lens for me.
What is camera shake?
If you have your camera in yourTo make your hands and look through the viewfinder to your photo, your body makes small movements. This is a natural thing, like your body is always correct itself and move the muscles to help maintain balance. However, they caused slight movements of the camera. If your camera on a subject that is a reasonable distance magnified these slight movements are more noticeable.
For example. If your hand shakes slightly and turn the camera off its line of 1 degreeDirection and the subject is 15 meters away, this turn to 3.1 centimeters in the direction of the camera game registered. Now, say that the movement of the hand, if you have your picture and was done while the shutter open. This blurs the image on film or on your digital image.
How can I prevent blurred images since?
There are 3 ways to prevent this.
Make sure that the shutter speed fast enough so that the hand movements have no effect on the image. Use a tripod. They have a lens with image stabilization and image stabilization.
Each method has its pros and cons.1. They shutter speed fast enough
Ideally, when you set this situation every time. The general rule is that you set a shutter speed of 1 over the entire focal length of your goal is to have. Do you want so if you're zoomed all the way with your target 300 mm, vi, 1 / 300 shutter curtain according to the speed or better (so 1 / 320 of the standard camera). This is usuallyWarranty (for the average user), the closure is not open long enough to feel the movements of the hand on the final image, if you have a steady hand, could be gone at a slower speed. The problem is, you have enough light to expose your image. If it is at the center of a bright day, it feels good. If it's dark you may need to use a more sensitive film, but this leads to grain to your image.
Note: If you see the expensive lenses with the same zoomCapacity as a lens cheaper, look at the maximum aperture. It is likely to be much larger than the cheapest ones. F/2.8 is a common one. The lower the number, the more can go to the opening. This means more light, if you can get with the picture, will be able to get higher shutter speeds.
2 Use a tri-pod
This will always work. Now you can use the trigger until you want and not blur the image opens (it is assumed that theReason does not move or moves slowly). Tripods are bulky and uncomfortable, but. And definitely do not work in a multitude of circumstances, especially travel.
3 Use a lens with image stabilization or vibration reduction
This approach is "meet in the middle," as you still have a decent shooting speed, but you do not need a tripod and cheaper than a fast lens. In the camera there is a mechanism to adjust the glass lenses slightly to compensate for movementYour hand. IS and VR will give you some closure time has not come back. So if you can not get enough light in 1 / 320 sec shutter speed, as did the example above. VR will be up to 1 / 125 sec (four fixed points in the ideal case). A lot of times, this is to have enough light to properly expose the image. VR and IS is a lens will cost extra, but they are still cheaper to buy fast lenses I mentioned above. The fast lens zoom range is usually not much, either (a limitationof such a large opening).
The main article provides an example of two images. One was caught, shot without VR and VR the other had. This is a photo taken with me at home with my Nikon D70s with Nikon 18-200mm VR.
In summary we can say. The cheapest option is to buy to buy a tripod, is the second, a lens with IS or VR, and the most expensive, is "fast" lenses to buy. I am a photographer and occasional use for the trip was so VR is the best option for me. If you findwith similar needs and want to eliminate camera shake more with your photos, then I would definitely recommend that you register with the VR and IS lenses.
Other articles by this author on photography, please www.thoughtsfrommylife.com / photography category.
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