Astronomik MaxFR SII 6 nm CCD Round Mounted 31 mm Filter

Astronomik MaxFR SII 6 nm CCD
31 mm Round Mounted Filter

• The MaxFR filter line by Astronomik is designed for fast optical systems (RASA, Epsilon, and other astrographs)

• The MFR coating allows this 6 nm sulfur filter to be used on all instruments down to f/2

• Experience very high contrast with no haloing

• Best out-of-band blocking possible from ultraviolet (UV) through infrared (IR)

• German engineering, made in Germany

About the Astronomik MaxFR 31 mm SII 6 nm CCD Filter

The MaxFR 6 nm SII sulfur CCD filter is suitable for imaging cosmic bodies (including nebulae) along the singly ionized sulfur (SII) wavelengths. This narrowband, 6 nm filter works well both in conditions of light pollution or dark skies! Using this filter guarantees 90% transmission or more at SII (671.7nm-673.0nm). This filter is made to Astronomik's exacting standards. While transmission ratings may vary between each filter, you are guaranteed a transmission rating greater than 90%, with a typical transmission rating of around 94% for the 6 nm SII. The specific T-Max will be listed on the filter case. You can rest easy knowing that every unit is thoroughly tested and guaranteed to meet Astronomik's stellar benchmark of performance!

This Astronomik MaxFR 31 mm Round Mounted SII 6 nm CCD Filter (8h11ha) is the optimal narrowband filter for CCD astrophotography. With a 6 nm FWHM, this parfocal sulfur filter is ideal for standard CCD cameras, allowing very fast optics to be employed.

About the Astronomik MaxFR Filter Line

The MaxFR filter line by Astronomik is manufactured using an entirely new process specifically designed for fast optical systems and focal ratios. This high quality line of astrophotography filters uses a built-in MFR coating technique to produce the best out-of-band blocking possible, from the ultraviolet to the infrared. This results in extremely high contrast with no haloing!

Please note this filter must NEVER be used for solar observing or imaging. Doing so will cause permanent damage to your eyes.