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All feedback (282)
- h***_ (293)- Feedback left by buyer.Past 6 monthsVerified purchaseI respect this seller's goal to prevent vintage camera lens destruction by providing these pristine, cheaper alternatives. This small lens was packed well, with the glass and casing labeled. It shipped quickly and the seller had great communication!
- a***o (254)- Feedback left by buyer.Past 6 monthsVerified purchaseItem as described. Well packed. Fast shipping. Recommend seller.
- h***5 (2)- Feedback left by buyer.Past 6 monthsVerified purchaseGreat packaging, fast delivery
- g***0 (117)- Feedback left by buyer.Past 6 monthsVerified purchaseWell packaged with tracking, the lens arrived as described in fine condition. The lens was active as expected (4.4 μSv/hr on a Radex 1212) and had easily measurable Th-232 isotope daughter spectra of Pb-212 on a Radiacode 103G. This is exactly what I was looking for!
- o***n (1722)- Feedback left by buyer.Past monthVerified purchaseItem as described, thank you!
- t***r (1432)- Feedback left by buyer.Past 6 monthsVerified purchaseExcellent seller! This lens is in perfect condition and looks great! It was shipped very quickly and carefully. For those looking for a thorium check source this is an excellent deal on a high quality item.
Reviews (3)

Sep 02, 2020
Not made by Pentax - still an OK value?
It "works" but was not made by Pentax and build quality and feel of the grip is not as good. If its something you will use often, you may want an original. Some components are seemingly identical, others, like the control levers, wheels, buttons are different, and feel weird.
But again, if this is for occasional use or just to have different battery options, should be OK.

Feb 18, 2025
Perfect bases for 3 pin geiger counter t...
Perfect bases for 3 pin geiger counter tubes. These have a flared lip, designed for mounting in a chassis. It's easily trimmed off to replace the sockets commonly used in geigher counter probes.

Jan 21, 2019
Easily use Pentax K mount lenses on C mount cameras
This is a well built, all metal adapter that allows a Pentax K mount lenses to be used on a C mount ( or CS mount with a C to CS extension tube ) camera. The adapter should work for any K compatible lense with an aperture ring. So this is the entire K, M, and F series. My application was using a K mount macro lens on a cheap C mount camera as an inspection camera. Because of the crop factor, you get a ~3x-4x magnification. So a 100mm macro will provide a 400mm equivalent FoV as seen through the C mount camera. Though a problem for any adapter, making a light baffle from a piece of black paper and using a lens hood appropriate for the smaller FoV improve things by reducing spurious light from bouncing around.