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D7000 and Sigma 300-800

jmiguez

Lafayette, US
534 posts

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jmiguez Silver Member Nikonian since 17th Oct 2010
Sun 02-Feb-14 12:21 AM

Last fall I picked up an almost new Sigma 300-800 here at Nikonians. I purchased it to photograph the egrets at the local rockery. The other day I took it out and did some test shots with my D800 and D7000 cameras. I wasn't as satisfied with the D7000 results as the D800.

Today, I did some test shots with the two cameras trying to see if I could fine the cameras and lens. I had no problem with the D800. It looker very sharp. Trying = or - fine tuning didn't help. It was perfect at zero.

However, try as I might, I could not get the same sharpness from the D7000. Both cameras were set up with the same ISO of 200 and I used manual setting to zero out the exposure. Single point center autoexposure was used to focus each camera.The D7000 was never as sharp as the D800 shots when viewed 1:1 in LightRoom.

For the first time since getting the camera, I have been disappointed with the D7000. I don't know if it is the extra crop factor making the image look closer that makes it less sharp or the D800's additional resolution?

The birds will be mating soon and I would like to use the D7000. However, if the pictures aren't as sharp, I will only be using the D800.

Am I expecting too much from the D7000? Am I comparing Apples to Oranges? Or, is the D800 just that much better?

John

My Pictures may be seen here: http://jmiguez.smugmug.com/

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