sushil Posted June 20, 2004 Share Posted June 20, 2004 I bought a Tamron 75-300mm LD zoom for my D70. It showed extensive purple fringing. I returned it and bought Nikon 70-300mm G. This has much less fringing. What is the sweetspot for this lens, focal length as well as aperture. Would be happy if you can go through my gallery and have a look at my first ever attempt with this lens on flying birds today. Thanks in advance. Link to comment Share on other sites More sharing options...
jbq Posted June 20, 2004 Share Posted June 20, 2004 In my experience, f/8 at the wide end, f/16 at the long end (f/11 at 180mm). I found it sharpest at the wide end, going down from there. I never paid attention to distortion. The background blur is very pleasant wide open around the wide end, making it suitable for portraits (as long as you can put enough distance between the subject and the background, as f/4 has quite some depth-of-field). Link to comment Share on other sites More sharing options...
sushil Posted June 20, 2004 Author Share Posted June 20, 2004 Thank you. That is very useful information for me. Link to comment Share on other sites More sharing options...
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