09-07-2012, 06:51 PM
[quote name='popo' timestamp='1347019481' post='19982']
I need to revise my Zeiss lens design types, in particular what the relative strengths and weaknesses of each are. For example, what does a Distagon do better or worse than a Planar?
In other news, they are doing an Apo Sonnar 2/135 for CaNikon too.
http://blogs.zeiss.com/photo/en/?p=2625
1600 euro or 2k US ex. VAT... not cheap! But if it is sharper and better corrected than the Canon 135L wide open I'm interested <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='
' /> I mainly use the 135/2 for astrophotography, so needs and considerations are different from more traditional uses... such as low coma/astigmatism and a very flat focal plane. The 132/2 isn't perfect in at least one of those although I'm not sure exactly which. The 2/50 makro-planar is better in that respect, but I just need something much longer.
[/quote]
The Zeiss blog explains Distagon/Planar etc. in older posts. Very recommended readings <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='' />
I need to revise my Zeiss lens design types, in particular what the relative strengths and weaknesses of each are. For example, what does a Distagon do better or worse than a Planar?
In other news, they are doing an Apo Sonnar 2/135 for CaNikon too.
http://blogs.zeiss.com/photo/en/?p=2625
1600 euro or 2k US ex. VAT... not cheap! But if it is sharper and better corrected than the Canon 135L wide open I'm interested <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='
' /> I mainly use the 135/2 for astrophotography, so needs and considerations are different from more traditional uses... such as low coma/astigmatism and a very flat focal plane. The 132/2 isn't perfect in at least one of those although I'm not sure exactly which. The 2/50 makro-planar is better in that respect, but I just need something much longer.[/quote]
The Zeiss blog explains Distagon/Planar etc. in older posts. Very recommended readings <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='
' />