Astronomik Deep-Sky B 50mm (SKU: 10236350 / 8h00qn)

Astronomik Deep-Sky B 50 mm, with protective ring (Astronomik, SKU: 10236350) is a single filter for recording the blue channel in RGB astrophotography with a monochrome camera. It belongs to the Deep-Sky RGB series, whose passbands were designed for modern CMOS and CCD sensors and deep-sky imaging.

Key features

• records the B channel as part of an RGB image
• integrated ultraviolet and infrared blocking
• coatings using Astronomik MFR technology that reduce unwanted reflections
• matched to the other filters in the Deep-Sky RGB series
• ring protects the glass edge during installation in a filter wheel
• durable coatings resistant to scratches and moisture

Included items

• filter, Astronomik Deep-Sky B 50 mm, with protective ring
• protective filter box

Technical specifications

• manufacturer: Astronomik
• manufacturer SKU: 10236350
• type: single colour filter for RGB astrophotography
• series: Deep-Sky RGB
• channel: B
• typical maximum transmission: 95% or higher
• ultraviolet and infrared blocking: integrated
• coatings: Astronomik MFR
• shape: round
• nominal size: 50 mm
• construction: protective ring, without a screw thread
• mechanical thickness including ring: 3 mm
• glass thickness: 1 mm
• parfocality: with standard Astronomik filters using 1 mm glass
• country of manufacture: Germany

The filter adds blue-channel data to the imaging workflow for combination into an RGB image.