Re: More camera ideas and questions

[Stephen Kearney <slk@xxxxxxxxxx>]

Lester wrote:

> I shot a few sheet of 4x5 film in my 1st MF camera, but decide to use a 6x12
> film holderinstead, because 4x5 film cost a lot more then 120 film. Yes, it is
> very easy to mount the
> pair.

A stereo pair on 4x5 is a bit more expensive than 120. Around here it's about
$4.50/stereo pair on 4x5 ($2/sheet of film plus $2.50 processing) compared to
around $2.25/stereo pair on 120. If you think that's pricey try my twin 4x5 camera
(http://jimkearney.ne.mediaone.net/~slk/projects.html ) at $9/stereo pair!

But another limitation is caused by the tight image spacing on the 4x5 sheet. My
4x5 filmholders have an aperture 120mm wide. If you use 58mm wide images, with a
4mm space between them, your lenses should be 60mm apart to place the window at
approx. 2 meters. Since ortho lens spacing is 63.5mm your camera will take pictures
that are slightly hypostereo. How much of a qualitative difference this will make I
don't know. Probably not much.

Good lenses for 2"x3" can be picked up for around $100-$125. Graflex made 2"x3"
press cameras with Graflex Optars (pretty good) and Kodak Ektars (very good) in the
90-100mm range. You shouldn't have to buy a whole camera; the lenses are often sold
on their own. These are lenses in shutter. My 4x5 stereo camera uses two Graflex
Optar 135mm lenses which are decent and only cost $50-$75.


_____________________________________
 Stephen Kearney : mailto:slk@xxxxxxxxxx
http://jimkearney.ne.mediaone.net/~slk
           Oakland, California