FLAT73A 1x FLATTENER FOR ZENITHSTAR 73 CMOS COOLED dip galvanization and powder coating

dip galvanization and powder coating make it virtually indestructible

the Avalon M-Uno has such a low guiding RMS error that it makes astrophotography possible with long focal length optics

the Askar 400 features a Petzval design that does not require to set the sensor to a specific distance to the last lens

The tube is designed and optimized with CAD and computer support modelling to achieve the best rigidity and lightness

7 mm (male thread not taken into account)

FLAT73A 1x FLATTENER FOR ZENITHSTAR 73 CMOS COOLED dip galvanization and powder coatingThe William Optics Flat73A is an apochromatic 1x field flattener for the Zenithstar 73. The 43mm image circle makes it a perfect match for full frame sensors. The Flat73A features adjustable spacing for use with a range of cameras and imaging systems. The Flat73A includes an M48 filter thread which will hold any standard 2" mounted filter. It also includes a handy camera rotator for precise framing of targets. Compatible with William Optics Z73 which