ANTLIA 3nm FAST ULTRA NARROWBAND SET Ha + OIII + SII Black Friday If these coatings on either

If these coatings on either side of the plate are not done exactly right to cancel out the stresses induced by the coating layers

6 kg counterweight

stainless steel and bronze

Sensor Sony ExMor IMX571 APS-C - colour

even when using high gain and a long exposure

ANTLIA 3nm FAST ULTRA NARROWBAND SET Ha + OIII + SII Black Friday If these coatings on eitherThe Antlia 3nm FAST ultra narrowband filters boost 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. Therefore,