ANTLIA Ha 3nm FAST ULTRA NARROWBAND FILTER M52 the mask generates a specific

the mask generates a specific diffraction pattern that makes the focusing procedure easy

On board and remote emergency stop button with safety relay

The ASI533MM uses a zero amp glow circuitry which eliminates the problem

meaning long exposures with guiding are now possible

12 mm from M68 thread

ANTLIA Ha 3nm FAST ULTRA NARROWBAND FILTER M52 the mask generates a specificThe Antlia H Alpha 3nm FAST ultra narrowband filter boosts the contrast of emission nebulae and supernova remnants for professional results, even under a bright sky affected by light pollution. The FAST series of filters are designed for telescopes with a focal ratio between f 2. 6 f 3. 6. Blueshift data indicates that at a focal ratio of f 2. 6, the angle of incidence of the light cone is 10 and its bandwidth shifts 2. 2nm to shorter wavelengths.