Index:
Related Local Links:
Medium Format Home Page
Medium Format Cameras List Page
Wierd Third Party Lenses (varioflex
shift)
Related Links:
Horseman View Camera to
35mm Adapter (for shifts/tilts etc)
Dr. Zork's Shift
Adapters Page
B��rn R�rslett's Nikon 28mm PC to
Tilt/Shift Lens Conversion
(thanks to Lars Hansen for URL!)
[7/2001]
The following postings and links provide some general information on shift
lenses and related topics. For a guide to making your own medium format
and 35mm shift and tilt/shift lenses, see our Homebrew Shift Lenses Pages!
From Nikon Digest:
Date: Mon, 16 Nov 1998
From: Dave Schneider [email protected]
Subject: Re: Subject: [8] Horesman View Camera Converter ,2nd request [26]
An 80 mm lens will focus at 80mm regardless of what the film size is. A
normal lens for 6x6 format is about 80mm which will produce roughly the
equivalent view as a 50mm lens on 35mm. A 300mm lens will work like a
300mm lens, which, on a 4x5 negative will give you the same perspective
as about a 85mm lens in 35mm, but when uses with a 35mm format it will
be a 300mm lens. There are equivalent charts for lens length verses
format at B&H's home page in the large format section and on several
large format user pages on the web. Remember that a lens of some focal
length will always produce the same image size, we just select how much
of that image we want to see by how big a piece of film we put behind
it.
I looked into the Horseman view camera converter some time ago as an
alternate to a Nikkor PC lens, a Zoerk panorama shift adapter or a real
live view camera. There were several questions that I was not satisfied
with about the Horseman or the Zoerk. It would appear that infinity
focus is not possible with some of these adapters rendering it useless
for my needs. To gain a wide angle perspective for architecture I would
need a 28 - 35mm lens. These lenses for medium format cameras are not
readily available in the used market and very expensive. New, these
lenses can be $1500 or more. The Zoerk uses a medium format lens which
has a longer mounting flange to film distance than 35mm cameras so they
build the shift mechanism between the 35mm body and the lens mount to
make it match the correct distance. I was not able to get any one from
Horseman or Zoerk to adequately answer the questions about how much
shift or tilt could be acheived before the limitation of the lens mount
and camera body was reached. The Nikkor PC lens has a limited capability
for shift and has no tilt capability.
My decision, with input from many of the contributors on this list
(thanks), was to buy a view camera. I found an Omega (Toyo) 45E in good
shape for $400 with 2 flat and one recessed lensboard. I got a good 120
roll film holder and a handful of 4x5 film holders at a flea market. The
lens is where I splurged and bought a new Grandagon-N 90mm F6.8 (I of
course would have preferred a Schneider but the 90mm F8 has been
criticized by many users and I couldn't stomach the cost of the F5.6
despite name brand loyalty). I have just started using this setup in the
last week and will report more on my findings. I can report that I
sorely miss the ease of use and portability of my bag full of Nikons but
my initial feel is this is the solution to the results I was looking
for.
From Nikon Digest:
Date: Mon, 16 Nov 1998
From: "James W. Norris" [email protected]
Subject: Re: Horesman View Camera Converter ,2nd request [34]
Date: Sat, 14 Nov 1998
From: Rolland Elliott [email protected]
Subject: [8] Horesman View Camera Converter ,2nd request
The web site for the Horseman VCC (view camera converter) is below:
http://horsemanusa.com/pd_frame032.html
I was hoping someone could tell me approximate equivalent focal
lengths that the following lenses (made by Horseman specifically for
the VCC) woud give me when used on a Nikon 35mm body and the Horseman
VCC?
80mm F4
105mm F5.6
135mm F5.6
The VCC also allows one to use Large Format Lenses with frange focal
distances between 90mm and 300mm, mounted on #0 or #1 shutter.
What would equivalent focal length be on a Nikon body with say a 300mm
large format lens?
I'd really appreciate some insight on this matter.
...
This device seems to be nothing more than a bellows unit. There is no
mention of any glass being inside it; therefore, the field of view of
the various lenses is identical to the same length from you favorite
35mm manufacturer. Be aware, though, that the marked depth of field
indicators for the large format lenses is different. Large format depth
of field numbers are calculated using a different circle of confusion.
Jim
From Medium Format Digest:
From: James Chow [email protected]
Subject: latest MF news from Japan Re: Mamiya RZ67 pro lenses, Contax 645
Date: 1998-11-24
I noticed in the just-released December Nippon Camera issue that Mamiya Japan is planning to release a pr. of new tilt-shift lenses for the RZ67 pro to work with the tilt-shift adapter. The lenses are a 180/4.5 and 75/4.5. The release date is set for July 1999 for Japan.
Also, an ad for the Contax 645 lists the release date as Jan 20,
1999 in Japan. The new Pentax 67II should be out by now...I plan to
drop by Yodobashi Camera to check it out (and the prices) this
week.
From Medium Format Digest:
From: Niloy Hil [email protected]
Subject: Medium Format Lens Adapter Aith Tilt/Shift
Date: 1998-11-24
The December issue of Shutterbug mentioned an Italy born medium format lens to 35mm body adapter with tilt & shift capability. It says there's no USA distributor yet.
Heard more info since then?