ANTLIA SII 3nm FAST ULTRA NARROWBAND FILTER M77 providing a reliable and secure

providing a reliable and secure mechanical connection

This adapter allows you to connect the APM RiFlat 1 Field Flattener for Short Refractors to Takahashi telescopes which have M72 x 1 female threads

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

Optional warm room configurations are available on request

ANTLIA SII 3nm FAST ULTRA NARROWBAND FILTER M77 providing a reliable and secureThe 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.