Archived posting to the Leica Users Group, 2005/02/06

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Subject: [Leica] 75 'cron now 105 F1.4
From: dorysrus at mindspring.com (Don Dory)
Date: Sun Feb 6 06:55:41 2005

Seth,
The 105 F1.4 was assuming use of the 75 Summilux on an APS C digital
camera.  Fifty percent crop factor would give you something in the
neighborhood of 105-110 effective focal length.

I wonder if anyone has mounted a 75 Summilux on the RD-1?  Howard, Dr.
Yao, Frank, anyone have both the RD-1 and the 75 Summilux?  Want to
chase attractive faces to see how this combination works?

-----Original Message-----
From: lug-bounces+dorysrus=mindspring.com@leica-users.org
[mailto:lug-bounces+dorysrus=mindspring.com@leica-users.org] On Behalf
Of Seth Rosner
Sent: Sunday, February 06, 2005 9:47 AM
To: Leica Users Group
Subject: Re: [Leica] 75 'cron

Don, I'm forwarding your post to Stefan Daniel at Solms; it seems to me
that 
input like yours should be invaluable to the planners at Leica. Only one

disagreement with you: I do not believe that a 105/F1,4 is possible for
two 
reasons, one because I think that even if it is technologically
achievable 
it would be ferociously expensive and monstrously heavy and bulky and
two, 
perhaps more important, I do not think it would work on an M-camera, the

bulk of such a lens would block the viewfinder.

Seth




Replies: Reply from red735i at earthlink.net (Frank Filippone) ([Leica] 75 'cron now 105 F1.4)
Reply from sethrosner at nycap.rr.com (Seth Rosner) ([Leica] 75 'cron now 105 F1.4)
In reply to: Message from sethrosner at nycap.rr.com (Seth Rosner) ([Leica] 75 'cron)