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aleksanderpolo
Joined: 24 Jan 2010 Posts: 684
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Posted: Thu Feb 03, 2011 10:28 pm Post subject: Nikon 50 1.2, difference between versions? |
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aleksanderpolo wrote:
What's difference between the Ai and Ais version other than S? Optical formula? Focus throw? Coating? And are there difference versions within Ais with noticeable difference? Thanks. |
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Esox lucius
Joined: 26 Aug 2008 Posts: 2441 Location: Helsinki, Finland
Expire: 2011-11-18
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Posted: Thu Feb 03, 2011 10:45 pm Post subject: |
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Esox lucius wrote:
Nikkor Ai 50mm f/1.2 has 7 rounded blades, Nikkor 50mm f/1.2 Ai-S has 9 straight blades. At f/2 both form a near perfect circle.
Ai vs. Ai-S coating different - native evolution, contrast and color reproduction slightly improved with Ai-S. Some swear by practical difference for real World use, others see no difference.
See this for more info
http://www.photosynthesis.co.nz/nikon/serialno.html#50fast
Last edited by Esox lucius on Fri Feb 04, 2011 8:52 am; edited 1 time in total |
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aleksanderpolo
Joined: 24 Jan 2010 Posts: 684
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Posted: Thu Feb 03, 2011 10:59 pm Post subject: |
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aleksanderpolo wrote:
Thanks for the info. Do you know if there is a difference in focus throw like the Ai and Ais 50/1.4? |
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Esox lucius
Joined: 26 Aug 2008 Posts: 2441 Location: Helsinki, Finland
Expire: 2011-11-18
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Posted: Thu Feb 03, 2011 11:14 pm Post subject: |
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Esox lucius wrote:
I don't know. Both lenses (Ai and AiS) are designed the same way, the "whole assembly" moves with the helicoid.
Last edited by Esox lucius on Fri Feb 04, 2011 8:50 am; edited 2 times in total |
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aleksanderpolo
Joined: 24 Jan 2010 Posts: 684
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Posted: Thu Feb 03, 2011 11:27 pm Post subject: |
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aleksanderpolo wrote:
Thank you. |
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Esox lucius
Joined: 26 Aug 2008 Posts: 2441 Location: Helsinki, Finland
Expire: 2011-11-18
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Posted: Fri Feb 04, 2011 8:49 am Post subject: |
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Esox lucius wrote:
aleksanderpolo wrote: |
Thanks for the info. Do you know if there is a difference in focus throw like the Ai and Ais 50/1.4? |
Yes there evidently is; Ai version 180 degrees vs Ai-S version 110 degrees.
See --> http://www.photosynthesis.co.nz/nikon/specs.html#50fast |
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aleksanderpolo
Joined: 24 Jan 2010 Posts: 684
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Posted: Fri Feb 04, 2011 6:28 pm Post subject: |
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aleksanderpolo wrote:
O great, I didn't pay attention to that column when I first read through it. Thanks a lot for point that out. |
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spleenone
Joined: 26 Dec 2009 Posts: 1130 Location: Slovakia
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Posted: Fri Feb 04, 2011 6:39 pm Post subject: |
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spleenone wrote:
Esox lucius wrote: |
aleksanderpolo wrote: |
Thanks for the info. Do you know if there is a difference in focus throw like the Ai and Ais 50/1.4? |
Yes there evidently is; Ai version 180 degrees vs Ai-S version 110 degrees.
See --> http://www.photosynthesis.co.nz/nikon/specs.html#50fast |
Every AiS lens has short throw. _________________ Shoot on analog mainly with
Nikkor glass
then Pentacon6TL for squares
and Fujica GL690 in case of 6x9
Carpe diem! |
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aleksanderpolo
Joined: 24 Jan 2010 Posts: 684
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Posted: Fri Feb 04, 2011 10:18 pm Post subject: |
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aleksanderpolo wrote:
So "S" is for short focus throw kidding.
But that's a bummer... I prefer long focus throw |
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nixland
Joined: 30 Jan 2011 Posts: 577
Expire: 2012-07-29
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Posted: Sat Feb 05, 2011 2:08 am Post subject: |
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nixland wrote:
I have the Ais ... the short throw makes it difficult in wide open to get the precise focus on close object due to very thin DOF (I usually stop down a bit or using liveview focusing).
But the short throw is good for video |
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spleenone
Joined: 26 Dec 2009 Posts: 1130 Location: Slovakia
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Posted: Sat Feb 05, 2011 7:22 pm Post subject: |
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spleenone wrote:
nixland wrote: |
I have the Ais ... the short throw makes it difficult in wide open to get the precise focus on close object due to very thin DOF (I usually stop down a bit or using liveview focusing).
But the short throw is good for video |
+1
but my problem is that I love pre-Ai glass so there is long focus obviosity _________________ Shoot on analog mainly with
Nikkor glass
then Pentacon6TL for squares
and Fujica GL690 in case of 6x9
Carpe diem! |
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