Altair Ha Oiii DualBand ULTRA 4nm CERTIFIED CMOS Filter 2" (Pre-owned) SII/OIII Dual Filter H-alpha filter is the first

H-alpha filter is the first narrowband addition to LRGB set for most imagers who blend a black-and-white Ha image into RGB data to enhance structural detail while maintaining natural look

ASI2600MC/MM Duo’s max FPS in RAW 8 mode at full resolution is 15FPS

Interface: USB2

5" or 7" telescope

Telescope in photo is shown with an OPTIONAL LUNT ZOOM EYEPIECE

Altair Ha Oiii DualBand ULTRA 4nm CERTIFIED CMOS Filter 2" (Pre-owned) SII/OIII Dual Filter H-alpha filter is the firstUsed filter, in great condition! The Altair Dual Band ULTRA Ha Oiii nebula filter comes with a high resolution spectrographic test report. Designed for imaging in extreme light pollution, E. g. in a major city, with a colour CMOS camera. This filter transmits only the H and Oiii light from emission nebulae, with almost total suppression of unwanted light, with OD6 (0. 0001%) over the majority of unwanted visual wavelengths* for ultimate contrast. USA