Archived posting to the Leica Users Group, 2012/10/16

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Subject: [Leica] OT: large format lens vs. medium format lens
From: red735i at verizon.net (Frank Filippone)
Date: Tue, 16 Oct 2012 22:02:16 -0700
References: <CAF8hL-HGDbNOmhkrKP5J+t0n=iu+9OO5Kpk6XqF0CC_utTwKZw@mail.gmail.com> <80F9701439F20347874CE5E4E03C22E99BEEFB26@WhizzMAIL01.whizz.org>

Film flatness plays its part....
Your lens is trying to project an image circle equivalent to a 5x7 negative
area....not an easy task....

What lens are you using?

Frank Filippone
Red735i at verizon.net

Always been my understanding of it, not the same enlargement so not the same
lens resolving. Newer LF lenses are much better than most old ones
though....

john

-----Original Message-----

As Iwas formulating the question, it sounds like the answer IS obvious, but
just want to confirm.

I am testing the Shenhao 617 and it could be my focusing techniques and
other issues, but it appears to me that the images are not as sharp on the
same film as images made by, well, the Hassy SWC.

Yes, I am expecting someone to jump in and say of course the SWC is razor
sharp because it's the legendary Biogon etc., but I am now thinking that
this generally will be the case, as the large format lens are designed to
cover large negative (and the smallest 4x5 dwarfs the 617) so they do not
generally have the resolution and sharpness that a good medium format lens
has.

Is this correct?

--
// richard <http://www.richardmanphoto.com>


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Replies: Reply from richard at richardmanphoto.com (Richard Man) ([Leica] OT: large format lens vs. medium format lens)
In reply to: Message from richard at richardmanphoto.com (Richard Man) ([Leica] OT: large format lens vs. medium format lens)
Message from john at mcmaster.co.nz (John McMaster) ([Leica] OT: large format lens vs. medium format lens)