[rollei_list] Re: Who uses a T as a 'daily driver'
- From: Marc James Small <marcsmall@xxxxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Tue, 02 Feb 2010 13:12:00 -0500
At 07:46 AM 2/2/2010, Eric Goldstein wrote:
>
>The ideal design speed of a miniature format 50 mm Tessar at that time
>(and probably now) would be f/4-f/4.5. So, with apologies to Ivor, a
>Tessar with an actual design speed of f/2.8 will not be best at f/4.
>
Uh, Eric? You are supporting my point that the
ideal design speed of the miniature-format normal Tessar is f/4.
No apologies are necessary to Ivor. You might
want to express your apologies to the late Dr
Sauer, who went to great lengths to explain the
virtues of the recomputed Tessar and how it
operated best from f/4 to f/11 both in its
miniature-format and medium-format
versions. But, again, I doubt if I have shot
more than ten rolls through a T in my life, so I
am not an expert on the capabilities of the camera beyond what is in writing.
Marc
msmall@xxxxxxxxxxxx
Cha robh bàs fir gun ghràs fir!
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