ANTLIA SII 3nm PRO ULTRA NARROWBAND FILTER Size:31mm the Askar 600 features a

the Askar 600 features a Petzval design that does not require to set the sensor to a specific distance to the last lens

78x reducer

40 mm diameter

This accessory increase the optical path of your telescope of 80mm

Optical thickness 1

ANTLIA SII 3nm PRO ULTRA NARROWBAND FILTER Size:31mm the Askar 600 features aThe new Antlia S II 3nm PRO ultra narrowband it is the latest filter produced by Antlia. This filter boosts the contrast of emission and planetary nebulae, Wolf Rayet nebulae and supernova remnants for professional results, even under a bright sky affected by light pollution. The 3. 0 nm band pass is only 1% of the entire visible spectrum, increasing the signal to noise ratio and delivering high contrast images and extremely dark backgrounds. To even