[Leica] Lens Design for Documentation of Places--Charles Marville but now with a sensor 1/100th the size.

[mark at rabinergroup.com (Mark Rabiner)]

I spent most of my commercial photography working life shooting on tripods
at smallish f stops as out of focus areas was not a consideration to come to
the LUG and find out that stopping down even a little bit was way uncool.
Some of this baloney actually rubbed off on  me. Its only very recently that
even with my street shooting I'm shoot at f 8 willy nilly. F 11 or what ever
the f it takes to get what I want in focus in the shot. You can take your
diffraction limited and "not getting your full Leicas worth not shooting
wide open" and keep it nice and cool somewhere.

This multiple focus technology is fascinating  and i'm straining at the bit
to get into it but one wonders the last time someone did photography in a
traditional sense as is described by Martin below. Used a tripod and stopped
down till we got all detail from front to back in focus. Its great fun and
very rewarding... Not to have missing information read: bokeh. But have an
image with full very clear information in all corners.
Yes a tilt down has its advantages instead of having to stop down so much
but trust me; a lot of the images you've seen over the years were shot at
f16 or f22 even with medium format or 35mm roll film and no one asked for
their money back.


Mark William Rabiner
Photography




> From: Martin Krieger <krieger at sppd.usc.edu>
> Reply-To: Leica Users Group <lug at leica-users.org>
> Date: Mon, 18 Jul 2011 14:32:29 -0700
> To: Leica Users Group <lug at leica-users.org>
> Subject: [Leica] Lens Design for Documentation of Places--Charles Marville 
> but
> now with a sensor 1/100th the size.
> 
> For my work, documenting cities and streets, I need a system that is
> good from about 2m to infinity, whose MTF is uniform over the image (and
> so we sacrifice maximum MTF in the center, I suspect), that has a
> telecentric lens so the sensor need not be too complicated, that need
> not have a wide f/stop range , say f/2 to f/5.6 to avoid diffraction,
> and whose out of focus MTF shows gentle decline of quality. Does anyone
> know of such a lens, for any size negative.
> 
>  
> 
> Charles Marville photographed Paris's streets in 1858-77 using wet
> collodion, time exposure and tripod, and 30x40cm plates. Small f/stop,
> lots of depth of field, monstrous negative, and so the detail is
> everywhere available. Quite amazing. If we go to at 2.4x3.6 cm sensor,
> and we do not use a tripod, what you need is focus stacking, and perhaps
> a burst of shots at each distance setting figuring that one will be when
> you are not shaking at all. But you also need a lens much as I have
> described above.
> 
>  
> 
> Martin Krieger
> 
> 
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