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Subject: Stereflektoskop Question
Date: 2015-02-22 08:04:50
From: coronet3d

I see that Voigtlander marketed an 85mm Stereflektoskop at the same time as their 75mm Stereflektoskop. Why would a 3D photographer want a longer focal length? I've always wanted more coverage with my Sputnik and I see that most (all?) lens replacements made with the TL120 are for shorter focal lengths.

Thanks,

Steve

Subject: Re: Stereflektoskop Question
Date: 2015-02-22 13:41:40
From: Brian Reynolds

Steve wrote:

> I see that Voigtlander marketed an 85mm Stereflektoskop at the same
> time as their 75mm Stereflektoskop. Why would a 3D photographer
> want a longer focal length? I've always wanted more coverage with
> my Sputnik and I see that most (all?) lens replacements made with
> the TL120 are for shorter focal lengths.

On the various formats I shoot (film and digital, small and large) I
generally prefer a "normal" (about the focal length of the frame
diagonal) focal lengths. On cameras with interchangable lenses, my
second lens would be a longer one.

I see a difference between the 75mm focal length of my Sputnik and the
80mm of my Yashica Mats. Given a choice I'd use an 80mm stereo
camera.

--
Brian Reynolds | "It's just like flying a spaceship.
reynolds@panix.com | You push some buttons and see
http://www.panix.com/~reynolds/ | what happens." -- Zapp Brannigan
NAR# 54438 |

Subject: Re: Stereflektoskop Question
Date: 2015-02-22 13:57:11
From: John Thurston

On 2/22/2015 5:04 AM, coronet3d@yahoo.com [MF3D-group] wrote:

> I see that Voigtlander marketed an 85mm Stereflektoskop at the same time as their 75mm Stereflektoskop. Why would a 3D photographer want a longer focal length?

What lens construction are the two cameras using? Could the
technology be better suited to 85mm than to 75mm?

I often prefer "wide" to "normal", but if I had to go "long"
to get "sharp", I'd make that trade. Maybe it was easier and
less expensive to make an acceptably sharp 85mm lens than a
75mm lens. Or maybe they were easier to get an acceptable
match for a pair.

--
John Thurston
Juneau, Alaska

Subject: Re: Stereflektoskop Question
Date: 2015-02-22 17:02:04
From: Timo Puhakka

I'm dead on with that. I have learned to love wide angle stereo, and think it is much better suited to stereo photography, but it is hard to argue against the sharpness of the TL120 lenses, even if they are 80mm.

Timo

On 22-Feb-15, at 2:57 PM, John Thurston juneau3d@thurstons.us [MF3D-group] wrote:

On 2/22/2015 5:04 AM, coronet3d@yahoo.com [MF3D-group] wrote:
> I see that Voigtlander marketed an 85mm Stereflektoskop at the same time as their 75mm Stereflektoskop. Why would a 3D photographer want a longer focal length?

What lens construction are the two cameras using? Could the
technology be better suited to 85mm than to 75mm?

I often prefer "wide" to "normal", but if I had to go "long"
to get "sharp", I'd make that trade. Maybe it was easier and
less expensive to make an acceptably sharp 85mm lens than a
75mm lens. Or maybe they were easier to get an acceptable
match for a pair.

--
John Thurston
Juneau, Alaska

Subject: Stereflektoskop Question
Date: 2017-01-02 14:24:13
From: coronet3d

On the top of the camera there's a selector switch for "M", "1" and "2". All I can tell is that when it drifts off of "M", you can't fire the shutter. Does anyone know what "1" and "2" are supposed to do?

Thanks,

Steve

Subject: Re: Stereflektoskop Question
Date: 2017-01-02 14:45:32
From: efbaskin

I don't think you need to cock the shutter mechanism to operate it on 1 or 2. 1 and 2 are the same as B and T (bulb and timer). Pressing down on the shutter release while on B opens the shutter and closes it when you let it go. Pressing down on the shutter release when on T opens the shutter. A 2nd press is required to close it. Open up the back and see what happens to the shutter. I can't remember if 1 is B or T.

If you cock the shutter mechanism and move that switch to 1 or 2, I don't know how it behaves. I used to have this camera but sold it a few years ago.

Subject: Re: Stereflektoskop Question
Date: 2017-01-02 18:01:21
From: coronet3d

That makes complete sense. You can't cock the shutter on 1 or 2 - only on "M".

Thanks,

Steve