06-16-2010, 10:17 AM
[quote name='popo' date='16 June 2010 - 11:22 AM' timestamp='1276680167' post='557']
I got one of these to play with and also noticed it does extend slightly when focusing closer. It is barely 1mm or less.
Klaus, was your sample's focus scale incorrectly set? I've seen it reported elsewhere so I'm quite sure mine isn't unique, but for sharpest infinity setting I found I had to set it to about 0.7m on the scale. I know with the massive DoF focus accuracy isn't the most important, but it did mean you miss out on a little close focus ability.
Also on the previous question on using it with full frame, [url="http://i213.photobucket.com/albums/cc260/popotehrawr/coate/5d1/g2-s.jpg"]here[/url] a test shot I did previously on the 5D just to see how the image was without cutting the hood:
[/quote]
I do never set infinity focus on an ultra-wide. That's a waste of DOF.
I got one of these to play with and also noticed it does extend slightly when focusing closer. It is barely 1mm or less.
Klaus, was your sample's focus scale incorrectly set? I've seen it reported elsewhere so I'm quite sure mine isn't unique, but for sharpest infinity setting I found I had to set it to about 0.7m on the scale. I know with the massive DoF focus accuracy isn't the most important, but it did mean you miss out on a little close focus ability.
Also on the previous question on using it with full frame, [url="http://i213.photobucket.com/albums/cc260/popotehrawr/coate/5d1/g2-s.jpg"]here[/url] a test shot I did previously on the 5D just to see how the image was without cutting the hood:
[/quote]
I do never set infinity focus on an ultra-wide. That's a waste of DOF.