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11-15-2016, 10:48 AM   #1
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Strange lens on ebay What is it?

It is listed as UNUSUAL LENS WITH 2 APERTURES INSIDE. PENTAX K P/K BAYONET FIT. I tried searching i'm sure the owner is one of us but does anyone know what it is?

UNUSUAL LENS WITH 2 APERTURES INSIDE. PENTAX K P/K BAYONET FIT. | eBay

11-15-2016, 10:51 AM   #2
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Looks like a home-engineered lens for producing sterescopic images...
11-15-2016, 11:07 AM   #3
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Looks like something the Lomography.com people would be putting on Kickstarter...
11-15-2016, 11:22 AM   #4
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I am thinking it is a stereo projection lens of some kind. The K-mount is an add-on.


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11-15-2016, 12:29 PM   #5
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I wonder how good stereoscopic images can it produce from two images so close to each other. Good for macro only? A few steps away the two images are almost identical...
11-15-2016, 12:40 PM   #6
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someone bought it
11-15-2016, 12:42 PM   #7
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QuoteOriginally posted by grahame Quote
I wonder how good stereoscopic images can it produce from two images so close to each other. Good for macro only? A few steps away the two images are almost identical...
Agreed. Very close range only...
11-15-2016, 01:06 PM   #8
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Looks like a projector lens, but also looks homemade. Probably for stereo/3d...

11-15-2016, 01:23 PM   #9
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Looks like a home-made version of this:

The Loreo 3d macro attachment.
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