Astronomik MaxFR SII 6 nm CCD Filter for Canon EOS R XL

Astronomik MaxFR SII 6 nm CCD Canon EOS R XL Full Frame Clip Filter

• Presented in an EOS R XL clip format for Canon EOS R/RP Full Frame Mirrorless cameras

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

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

• This Astronomik MaxFR SII 6 nm CCD Filter has been designed specifically for astrophotography purposes

• Does not require any housing modifications in order to enable use

• Installation can be done without tools while removal is accomplished with the aid of an included small hook

• Allows ionized sulfur (SII) light to pass through while completely cutting off the remainder of the visual spectrum plus IR

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

• FWHM bandwidth of approximately 6 nm

• An optimal fit for imaging planetary nebulae and supernova remnants

• Experience very high contrast with no haloing

• Made in Germany, a country that is known for producing optics of great distinction

About the Astronomik MaxFR SII 6 nm CCD Clip-Filter

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!

MaxFR CCD filters from Astronomik highlight the contrast between objects. The SII filter highlights the contrast between ionized sulfur (SII) emission line objects and the skyglow background. Plus, this filter also completely obstructs artificial light sources such as mercury (Hg), sodium (Na), and skyglow, making it an excellent filter for use in heavily light polluted conditions. A superior quality substrate allows the Astronomik MaxFR SII 6 nm CCD Filter to provide the same needle sharp star views you would see with your normal telescope.

All superfluous wavelengths in the visible and IR bands of the spectrum are completely obstructed with this Astronomik 6 nm SII CCD Filter. Parfocal with all other Astronomik filters and diffraction limited to keep the optical performance of your telescope from degrading. All Astronomik filters are delivered in a durable, high-quality plastic filter case.

About the Astronomik MaxFR Filter Line

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. The MaxFR filter line by Astronomik is manufactured using an entirely new process specifically designed for fast optical systems and focal ratios. This results in extremely high contrast with no haloing!

About the Astronomik EOS R/RP Clip Filter System

Astronomik EOS R XL clip filters are suitable for use with full frame mirrorless Canon EOS R and RP camera models. Facilitates imaging from both urban and rural areas, and does not require any modifications to the camera housing for use. Once the filter has been slid into place and is level, you can then reinstall the camera lens and you'll be ready to start imaging.

Without any tools and using only a finger, this filter can be easily installed. Removal does require the aid of an included small hook, but only initially. As soon as the filter is out far enough for you to grip with your fingers, you can go ahead and take it out the rest of the way and place it back in the case.

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

Compatible Canon EOS Bodies

• EOS R

• EOS R5

• EOS R6

• EOS RP

• EOS Ra