ZWO 7nm NARROWBAND FILTER SET Cooled 400 mm length

400 mm length

General Equatorial and Altazimuthal GoTo system stepper motor based with programmable Gear Ratio (1234

0 e (@ 30bD)

65 kg - without accessories

The PRO RC's represent a step forward in state of the art of professional instruments

ZWO 7nm NARROWBAND FILTER SET Cooled 400 mm lengthZWO 7nm narrowband filters enhance the contrast of emission and planetary nebulae. These peculiar nebulae emit light only in specific wavelengths (H; OIII; SII) and the narrowband filters have the property to reject all light outside these bands. The passing band or "window" of these filters is 7nm wide. Considering that the visible light spectrum is between 380nm and 740nm, a 7nm filter would block 98% of the unwanted light. As a result, the signal