CHROMA TECHNOLOGY LRGB FILTER SET CMOS one ring with continuous female

one ring with continuous female M42 (T2) thread

a line "splitting" called the Zeeman effect can be observed

in this way it is possible to use 4 optics

The bottom slide is a 4” dovetail bar 400mm length

This test is rarely provided by any producer and it is a standard for high quality filters

CHROMA TECHNOLOGY LRGB FILTER SET CMOS one ring with continuous femaleThe Chroma LRGB filter set is designed for deep space imaging applications with monochrome CMOS CCD sensors. All transmission and blocking (OD) data are actual, measured spectra of representative production lots. Spectra varies slightly from lot to lot. Optical density values in excess of 6 may appear noisy because such evaluations push the resolution limit of low light level measurements.