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Forum: Pentax News and Rumors 05-28-2009, 11:39 AM  
D-FA 50mm f/1.0 SDM
Posted By muvideo
Replies: 219
Views: 68,984
Thank you for explanation.
Fabio.
Forum: Pentax News and Rumors 05-27-2009, 03:45 PM  
D-FA 50mm f/1.0 SDM
Posted By muvideo
Replies: 219
Views: 68,984
Hello, usually I dont' post because of my pooor english.
I'm curious about the statement above, perhaps I dont' understand
correctly, but isn't entrance pupil of 200/2.8=about71mm?
And so for 300/2.8=107mm, 85/1.4=60.7mm.
I haven't seen exit pupil of these lenses, but I think that it's of
smaller diameter than entrance pupil.
Or have I made wrong assumptions on what are entrance and exit
pupils?
Forum: Sold Items 11-16-2008, 03:20 AM  
For Sale - Sold: K200D, DA 18-55mm II, FA 50mm/f1.4
Posted By muvideo
Replies: 20
Views: 4,590
PM on FA50mm also from me...
Forum: Sold Items 11-15-2008, 08:02 AM  
For Sale - Sold: Pentax FA 50mm/1.4 & Fisheye F 17-28mm
Posted By muvideo
Replies: 16
Views: 5,928
PM sent ...
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