ANTLIA SII 3nm FAST ULTRA NARROWBAND FILTER M77 60/40 (in accordance with US

60/40 (in accordance with US military watch MIL-O-13830) Parallelism

Why using counterweights if the mount itself can be a large counterweight

Optional warm room configurations are available on request

An optional tripod specifically designed for this mount is available

The ED lens reduces the chromatic aberration and therefore the apparent size of the stars

ANTLIA SII 3nm FAST ULTRA NARROWBAND FILTER M77 60/40 (in accordance with USThe Antlia SII 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.