ZWO EFW 7 x 50mm SQUARE FOR ASI461MM PRO 3nm Your choice of Baader 50

Your choice of Baader 50 x 50mm square LRGB & 3

When collapsed it is only 85cm high but it can be extended up to 130cm

Counterweight kit for CDK14 & CDK20 attaches to the dovetail bar for critical balance in Declination

and features three cooling fans at the rear to rapidly cool the primary mirror

ZWO EFW 7 x 50mm SQUARE FOR ASI461MM PRO 3nm Your choice of Baader 50The ZWO EFW 7 x 50mm electronic filter wheel was designed for the medium format ASI461MM Pro, which requires 50mm square filters to minimize vignetting across its huge sensor. The EFW 7 x 50mm is CNC machined from a solid block of aircraft aluminium and has an optical thickness of only 16mm. The stepper motor is made in Japan by NPM and has very high precision and reliability. The filter wheel is bi directional, making filter changes very quick. Note: