Shutter speed question
Oct 23, 2016 19:16:19 #
petego4it wrote:
I'm sure this will raise some controversy...hopefully illumination too. I've always assumed that if by juggling fstop and iso I was able to raise shutter speed high enough, say 1/1000 or 1/2000 of a second, that the need to use a cumbersome tripod for a sharp shot would be eliminated. True or false?? Any examples?
The short answer would be yes in most instances using a lens of 500mm or shorter (1000mm at 1/2000 sec), especially on a crop sensor camera.
Oct 23, 2016 19:48:41 #
For the most part you are right. However you will live with the consequences of large aperture (shallow depth of field) and high ISO (noise). So you may end up with a sharp picture of your dog that is noisy or soft because of the noise removal process, and has only one ear in focus.
Oct 24, 2016 09:23:59 #
Most do not know that they can now raise ISO to 800, 1600, 3200 and not have noise on new cameras. The rule for hand held shutter speed is 1/mm lens. If you shoot using a 300 mm lens, your shutter should be 1/300 or faster. Aperture (f stop) will then control the DOF (depth of field). This is the place for questions like yours. Thanks for asking. David
Oct 24, 2016 10:49:01 #
mcveed wrote:
For the most part you are right. However you will live with the consequences of large aperture (shallow depth of field) and high ISO (noise). So you may end up with a sharp picture of your dog that is noisy or soft because of the noise removal process, and has only one ear in focus.
One of the reasons for buying a "fast" lens is to obtain a shallow depth-of-field. I don't think that one should purchase a 400/2.8 and then shoot it at F8! Of course I'm a sports guy! YMMV.
Oct 24, 2016 12:28:58 #
petego4it
Loc: NY
Yeah, I'm the fail point true. My training is "to get the shot". Too often, a tripod set up would cost me "the shot." But hey, I'm getting older, should have more time. Maybe hopefully can find instances to take the needed time more often. Have also thought about doing night star shots. Absolute must there anyway. Like most things in photography, it's lifelong learning and growth. Why its such a great hobby!!
Oct 24, 2016 14:18:31 #
There is a lot more to getting a tack sharp image than the set up on a tripod, setting a high ISO, and using a fast shutter speed. The basic mechanics of knowing your camera, and lenses is into play also. Some of the basics that are not so obvious are front/back focus, a soft breeze in the trees. These things will soften a other wise tack sharp image. Even the speed which a lens will focus comes into play.
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Oct 25, 2016 08:13:01 #
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