Mailinglist Archives:
Infrared
Panorama
Photo-3D
Tech-3D
Sell-3D
MF3D

Notice
This mailinglist archive is frozen since May 2001, i.e. it will stay online but will not be updated.
<-- Date Index --> <-- Thread Index --> [Author Index]

[MF3D.FORUM:1158] Re: Camera design


  • From: Greg Erker <erker@xxxxxxxxxxxxxx>
  • Subject: [MF3D.FORUM:1158] Re: Camera design
  • Date: Fri, 25 Aug 2000 13:07:09 -0600


>The Rolleidoscope (Heidoscope) keeps the horizontal L/R
>lens separation small by a vertical offset of the viewing lens/reflex
>mirror (like the Spud), but properly previewing the effect of tilting
>the lens plane will require the viewing lens to share the same tilt axis
>as the taking lenses - creating a fairly long stereo base as you say.

  I though the Rolleidoscop had the lenses in
line. Not in a triangle like the Spud.

>On the other hand, if you could somehow manage to couple film plane tilt
>to ground glass tilt (or reflex mirror tilt [by half as much] ), you
>could get a  proper preview in a horizontally compact camera (i.e., one
>with an offset viewing lens) all without the need for lenses with
>extended image circles.  But the more I think about it, getting the
>depth of field you want by using f/32 apertures is sounding better and
>better.

  I'd rather cannibalize a camera body
or two rather than build the film plane
stuff. So film plane tilt is not likely
something I'd want to do.

  F32 usually works but sometimes there
is a breeze and the shutter speed f32
gives you will make the trees blury from
movement so getting everything in focus
doesn't help. Being able to tilt and then
shoot at f16 might save the day sometimes.

Thanks - Greg E.