Nikon 200-400 f4 testing

Started Jun 17, 2013 | Discussions thread
Ian Stuart Forsyth
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Re: Nikon 200-400 f4 testing
In reply to AlexandreH, Jun 17, 2013

AlexandreH wrote:

Great pic, I havent tried the 1.7x yet that close of a distance. I will give it a shot to see. I dont think I tried anything with 1.7x yet at anything closer to 75 meters or so. I also have to play with the fine tuning to see if that will improve anything but so far sharpness drops above 360mm if using f4, f4.5 and f5 from medium to long range. Less than 50 meters there is less of a gap. So far at any distance I get great results at 400mm f5.6, I doubt fine tuning will help but I will give it a shot for sure. I will post feedback when I have a chance to try. thanks

I have also noticed a shift in focus at different AP, I found the best way to test for problems is take one photo with AF and the other using LV, I know it opened my eye as far as what I was getting using AF when I compared the 2 photos.

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