eBay item 154475347142
Condition: Used
Vintage automatic extension tube 3-ring set
for Asahi Pentax, Praktica, Ediza, Mamiya Sekor,
Yashica TL, Ricoh, Argus, Regula, Chinonflex, etc.
In great shape with box.
received 26 Aug 2022
These M42 extension tubes have unusually small knurling
and fit in Nikon UW trinocular port.
