www.photomacrography.net :: View topic - Comparing macro lenses using MTF - part III - 0.66x
www.photomacrography.net Forum Index
An online community dedicated to the practices of photomacrography, close-up and macro photography, and photomicrography.
Photomacrography Front Page Amateurmicrography Front Page
Old Forums/Galleries
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Comparing macro lenses using MTF - part III - 0.66x
Goto page Previous  1, 2, 3
 
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Equipment Discussions
View previous topic :: View next topic  
Author Message
Lou Jost



Joined: 04 Sep 2015
Posts: 2857
Location: Ecuador
PostPosted: Thu Sep 13, 2018 6:38 pm    Post subject: Reply with quote
Thanks Rik for that. I wasn't thinking properly.
_________________
Lou Jost
www.ecomingafoundation.wordpress.com
www.loujost.com
Back to top
View user's profile Send private message Visit poster's website
ray_parkhurst



Joined: 20 Nov 2010
Posts: 1722
Location: Santa Clara, CA, USA
PostPosted: Sun Sep 16, 2018 5:39 pm    Post subject: Reply with quote
I did a quick check of the 75ARD2 for CA using a resolution target at 2x. Here it is focused high, critically-focused, and focused low. The focused-high image shows red fringing, while focused-low shows green fringing. Looks like it resolves Group 7 #3 and almost #4, but I think that may be sensor limitations. These were shot wide open f4.5.





Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> Equipment Discussions All times are GMT - 7 Hours
Goto page Previous  1, 2, 3
Page 3 of 3

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group