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Pentax Stereo Adapter and Viewer on eBay for $41/OBO
Posted By: Paesibous, 07-31-2017, 06:52 PM

Listed in like new condition on eBay for $41/OBO with $12.75 shipping. Considered buying it myself, but I think I have to play with my existing toys before I add to them lol. Thought it was an excellent deal so sharing it.

Pentax Stereo Adapter kit 52mm, beam-spliter and stereo viewer
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08-02-2017, 05:24 AM   #2
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Will this thing only mount on a film SLR?

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08-02-2017, 11:02 PM   #3
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I believe it just threads to a lens, FF or not. I Googled it and folks recommended a 50mm. There's info out there though it requires some searching. Oddly, the listing was taken off then reappeared as a $40 auction. I am not the seller. I'd actually considered buying it, but as stated in my initial post, I need to play with the toys I have first, lol.
08-03-2017, 09:49 AM   #4
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it sold....
who here bought it??

08-03-2017, 11:14 AM   #5
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It says Sold, but check the seller's "other items" and you'll find it has been relisted as a New item with the same pictures. The sign of a seller I don't want to deal with.

Last edited by CarlG; 08-03-2017 at 12:03 PM.
08-03-2017, 05:30 PM   #6
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I have one of these - it doesn't screw onto the filter threads, but instead slips over the nose of the lens and is clamped in place by a set screw pushing on a bar (ring?) that goes around the inside of the mount so no damage is done to the lens. Mine fits over lenses with a 49mm filter thread, and I think the one in the auction does also. The picture of the mount has "1:1.8/55" stamped on it (as does the one I have), and my Tak 55/1.8 takes 49mm filters.

Like Paesibous said, I read that 50/55mm lenses were recommended for the best stereo effect, so 35mm would probably be a good focal length for APS-C cameras. I used an M 28/2.8 lens on my K-3 (closest thing I have to 35mm), and the 3D effect was pretty cool. I think there was another version or optional mount for lenses with 52mm filter threads - can't remember where I saw that, but it sprang to mind for some reason...

The viewer part isn't much use unless you still shoot slide film, but if you have one of those VR headsets like Google cardboard and the like, then you can import the stereo photo to your phone and view it though that.
08-03-2017, 06:31 PM   #7
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There is a stereo adapter for 52mm thread lenses and a separate one for 49mm thread lenses.
08-11-2017, 11:38 AM   #8
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Purchased it without anything specific in mind. Price seemed reasonable and, perhaps, the 19th century fad of collecting pornographic stereoscopy will make a reappearance and I'll go into the 3d nudie business.

08-11-2017, 04:14 PM   #9
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QuoteOriginally posted by dtrego Quote
I have one of these - it doesn't screw onto the filter threads, but instead slips over the nose of the lens and is clamped in place by a set screw pushing on a bar (ring?) that goes around the inside of the mount so no damage is done to the lens. Mine fits over lenses with a 49mm filter thread, and I think the one in the auction does also. The picture of the mount has "1:1.8/55" stamped on it (as does the one I have), and my Tak 55/1.8 takes 49mm filters.
I've got a boxed K Series version with a 52mm filter thread. Had it for years now and never used it........

Phil.
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08-11-2017, 06:51 PM   #10
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here is how video looks with it
08-11-2017, 07:00 PM   #11
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QuoteOriginally posted by gofour3 Quote
I've got a boxed K Series version with a 52mm filter thread. Had it for years now and never used it........

Phil.
Mine doesn't have the instructions but I read a scan online. It's pretty easy. Must use slide film and insert the slide in the stereo viewer. The taking part screws into the filter threads then you adjust the lenses to horizontal or vertical. f5.6 or f/8 recommended and position subject so that background OOF blur enhances the 3D effect. What was that toy with the Disney or Naigra Falls slides on a disk? Viewmaster?

Mine is the 52mm set, boxed and shiny like never used

Last edited by monochrome; 08-11-2017 at 07:13 PM.
08-12-2017, 07:40 AM - 1 Like   #12
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Just a note for those who might have this item or purchase it. Download a copy of StereoPhotomaker which is a program for working with 3D files. Among other things, it allows you to generate a 3D file that can be viewed on a 3D television (using an SD card or Thumbdrive). One of the most useful 3D programs I've seen. Of course, your original 3D image(s) have to be in a digital format like JPEG to begin with (though a film scan will work). It takes a little time to learn its different functions, but there is a pretty good guide at the site for its use.

http://stereo.jpn.org/eng/stphmkr/
08-12-2017, 10:55 AM   #13
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alternatively you can cross your eyes until the two images become three images, then focus on the one in the middle.
08-12-2017, 11:08 AM - 2 Likes   #14
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QuoteOriginally posted by sculptor666 Quote
alternatively you can cross your eyes until the two images become three images, then focus on the one in the middle.
You have to cut and paste the images to opposite sides othewise for example a ball would look like a bowl.
Here is a sample of the cross eyed technic and original

Cross Eyed Conversion..Cross your eyes unti you see 3 images. the middle is 3D


Last edited by Sliver-Surfer; 08-12-2017 at 11:21 AM.
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