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06/03/2006 11:31:12 AM · #1 |
OK - I have a very basic question I need some help with. I keep seeing the following terms mentioned
1/2 a stop
Full stop
1/3 stop
-2/3 exposure
On a D200 how do I go up or down a stop? What constitutes a "stop" or a -2/3 exposure?
Thanks,
Robert Pomerenk |
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06/03/2006 11:38:56 AM · #2 |
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06/03/2006 11:45:27 AM · #3 |
| Hopper's link is good. The short version is: a stop basically is a metric for describing how much light is entering your camera. A 1 stop difference means the camera is receiving either half as much - or twice - the light. This is easy to understand in terms of shutter speed, a 1/500 sec exposure admits twice the light that a 1/1000 sec exposure does - a difference of one stop. The other way to accomplish the same thing (with different effect) is aperture. F 2.8 is a smaller aperture than F 2, and the difference is a full stop - F2 admits twice as much light (see Hopper's link for why it's not an even number). |
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06/03/2006 12:37:16 PM · #4 |
Originally posted by robpom:
OK - I have a very basic question I need some help with. I keep seeing the following terms mentioned
1/2 a stop
Full stop
1/3 stop
-2/3 exposure
On a D200 how do I go up or down a stop? What constitutes a "stop" or a -2/3 exposure?
Thanks,
Robert Pomerenk |
specificly for D200 / it depends on the mode
take iso200 f16 1/250 Manual mode:
down 1 stop you could change 1 (ONLY 1) iso100 f22 1/500 (underexposing)
up 1 stop you could change 1 (ONLY 1) iso400 f11 1/125 (over exposing)
note: i didn;t include just aperture because you may want/ need to keep that constant -
in any of the priority modes you would compensate by under/over exposing
by a stop (major tick marks on the meter )
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06/03/2006 12:42:07 PM · #5 |
on the top of a d200 there is a +/- button, press and hold this as your turn the shutter speed control dial on the back of the camera.
~simple answer
Travis
Message edited by author 2006-06-03 12:42:29.
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