[Leica] OT: large format lens vs. medium format lens

[richard at richardmanphoto.com (Richard Man)]

Well, you are probably right that I need to lock down as much variables as
possible. I shall do that.

In these particular tests, it's the Nikkor 90 SWD lens, on Acros 100 and
400TX. They are 120 film of course to fit the 617 format.

Focusing on the ground glass. Cable release.

Well, more tests tomorrow.

Thanks everybody.


On Tue, Oct 16, 2012 at 10:11 PM, Mark Rabiner <mark at 
rabinergroup.com>wrote:

> Assuming that the lens which you are mysteriously not mentioning on your
> Shenhao 617  is not a complete piece of moldy fungus ridden garbage an
> image
> on a 45 pieces of film does not look less sharp than one with medium
> format.
> It is but you not think so by sight even with a very good loupe. It look is
> quite impressive which just jumps out at you.
> Sure large format glass resolves less that medium format glass but that
> fact
> that its bigger just makes your socks being knocked off. The less times it
> needs to be enlarged  on paper well makes up for the very slight lack of
> resolution on the film itself.
> What other variables are there?
> Tripod with cable release?
> Focusing how?
> Subject matter low contrast?
> What film are you using?
>
> Mark William Rabiner
> Photography
> http://gallery.leica-users.org/v/lugalrabs/
>
>
> > From: Richard Man <richard at richardmanphoto.com>
> > Reply-To: Leica Users Group <lug at leica-users.org>
> > Date: Tue, 16 Oct 2012 21:53:48 -0700
> > To: Leica Users Group <lug at leica-users.org>
> > Subject: [Leica] OT: large format lens vs. medium format lens
> >
> > 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>
> >
> > _______________________________________________
> > Leica Users Group.
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>
>
>
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-- 
// richard <http://www.richardmanphoto.com>