ScopeStuff #OIFR - 1.25" Filter Cell - Filter Ring - With Retainer. No Glass!

Description

Empty 1.25" filter ring or filter cell, no glass, with threaded retainer
ring. No markings or text.
Black anodized aluminum, male threads on one side and female
threads on the other. The retainer ring threads in to hold the glass.
Can be used as spacers, and can also be used as 99.9999%
transmission, zero reflection, extremely wide band filters.  ;=}
The 1.25" (1-1/8" 40 tpi threads) size holds 1.10" diameter glass up
to 1/8" thick. 1.22" outside diameter, 0.45" overall thickness, 0.305"
extension thickness.
Price includes shipping in the USA!