Re: [photo-3d] Re: Medium Format viewer

["Don Lopp" <dlopp@xxxxxxxxxxxxxxx>]

 The main problem I have with most viewers is a lack of interocular control
In my opinion , BIG lenses does not overcome the problem. DON
----- Original Message -----
From: "Alan Lewis" <3-d@xxxxxxxx>
To: "photo-3d@xxxxxxxxxxx" <photo-3d@xxxxxxxxxxx>
Sent: Tuesday, January 16, 2001 4:42 AM
Subject: [photo-3d] Re: Medium Format viewer


> Niels wrote:
>
> > You have helped me a lot. I tried a 80mm viewing lens with a
> > 6x6 slide today.
> > It was supposed to give me about the same view of a 50mm
> > viewing lens for a 35mm slide. I don't know why (probably
> > because of the square format), but the 6x6 slide image
> > appears *a lot* bigger than the 35mm... and more vivid too.
> >
>
> Yes, I have always believed through experience that when using an ortho
> viewing lens a square format image will feel more immersive than a
> rectangular image due to the extra vertical image area.  In the real
> world we sense the "volume" of the scene by both the horiz. and the
> vertical parts of the scene, along with the depth.
>
> If we follow this to the next logical step, the most efficient film
> image shape is probably round, where you can eliminate the window of the
> mount and use the full dia. of the viewing lens to view all parts of the
> image.  It's a strange shape, but should seem more immersive.
>
> > I can't wait to build my MF viewer.
> >
> > I've seen some blueprints that use the Edmund Scientific
> > lenses... I wonder if I can get someone (like a glasses
> > store) to make a similar lens for me...
>
> If you have a friend in the glasses store business perhaps.  Otherwise
> it is best to use commercially available achromatic lenses.  I've
> already done the homework for the SaturnSlide lenses, they produce an
> excellent image.
>
> --
> Alan Lewis
> mailto:3-d@xxxxxxxx
> http://members.home.net/3-d
> Serious viewers for Serious viewer's
> New stereo viewers & Stereo Wedding Photography
>
>
>
>


 

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