CHROMA TECHNOLOGY SII FILTER Bandpass:5nm the standard cases “PLB series”

the standard cases “PLB series” ensure a very high level of protection

In DSLR's the IR/UV filter is embedded in the camera so the standard UHC filter is sufficient

6) female thread at the front of the telescope for mounting standard 1

8 x 36mm M3 screws

the telecentric design does not extend the eye relief of the connected eyepiece

CHROMA TECHNOLOGY SII FILTER Bandpass:5nm the standard cases “PLB series”Chroma narrowband filters are the highest performing filters on the market today. They are available with a range of bandpasses and sizes to suit any configuration where the finest image quality is of paramount importance. The Chroma SII filter isolates the spectral emission of singly ionized sulfur atoms, also common in nebulae. Emission is at two lines occurring as a doublet, at 671. 6 and 673. 1 nm. This filter also separates sulfur emission from H