[pure-silver] Re: unsharp lens
- From: Aaron Reece <oboeaaron@xxxxxxx>
- To: pure-silver@xxxxxxxxxxxxx
- Date: Mon, 7 May 2007 23:47:53 -0400
I forgot to include the URL for the website I mentioned in my last post:
http://www.hevanet.com/cperez/index1.html
Here is his data for the Rodenstock 150mm APO Sironar S:
center middle edge
f/11 76 85 43
f/16 76 76 43
f/22 60 60 48
And for the Hasselblad Zeiss 80mm f/2.8 Planar CT*:
c m e
68 68 38 f/2.8
60 60 34 f/4
96 96 54 f/5.6
96 107 60 f/8
85 76 60 f/11
68 68 60 f/16
54 48 48 f/22
He does not provide resolution data beyond f/22 for the Rodenstock,
but you can follow the trend. Like all lens tests, take with a grain
of salt. Also, I believe these tests measure a single sample of each
lens only.
-Aaron
On May 7, 2007, at 9:38 PM, Shannon Stoney wrote:
I don't see how that could be it, because I do the same with the
90mm lens, and those images are plenty sharp.
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