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mav6977
Joined: 07 Apr 2006
Posts: 9
Location: Wichita Falls TX
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 Posted: Sat Apr 08, 2006 12:05 am Post subject: |
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I've noticed that some F/2.8
Xenotars are in No. O Compurs
while others are in a No. 1.
Does anybody know when Schneider
switched? And why? Was the lens
redesigned and needed a bigger
geometric aperture or did they
switch because of vignetting.
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owlsplace
Joined: 12 Apr 2006
Posts: 4
Location: Sierra Nevada
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| Posted: Thu Apr 13, 2006 12:31 am Post subject: |
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| I was interested in this lens for awhile but dropped the idea since it seems to be limited to 6x9 format w/o much coverage for movements. Seems like they would want to use the smaller shutter for this format. |
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Dan Fromm
Joined: 14 May 2001
Posts: 2146
Location: New Jersey
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| Posted: Thu Apr 13, 2006 12:57 am Post subject: |
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On 2006-04-12 17:31, owlsplace wrote:
I was interested in this lens for awhile but dropped the idea since it seems to be limited to 6x9 format w/o much coverage for movements. Seems like they would want to use the smaller shutter for this format.
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To both of you, Xenotars were made in a variety of focal lengths and speeds. According to Schneider's site, f/3.5s and 100/4s were in #0, 80 and 100 f/2.8s were in #1. Apparently no major redesigns, but the slower ones are smaller.
The type -- fast double Gauss -- rarly covers much more than its focal length. The 80/2.8 is an exception, Schneider rates it to cover nominal 6x7 and some users have claimed it can be used on 2x3. I guess usability depends in part on how good one wants the image to be in the corners. |
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mav6977
Joined: 07 Apr 2006
Posts: 9
Location: Wichita Falls TX
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| Posted: Thu Apr 13, 2006 3:05 am Post subject: |
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I should have specified that I meant
the 80mm. I have seen some on Ebay in a
No. O shutter and others in the more
common No. 1. I was just curious when they switched. |
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Top
Joined: 06 Apr 2002
Posts: 198
Location: Northern New England USA
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| Posted: Thu Apr 13, 2006 12:02 pm Post subject: |
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The 80/f2.8 is an old friend; I used one on my Century for years. It'll cover 6x9 just fine from f8 on down, and is a little soft in the corners at f2.8.
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