Baader IR Pass Filter 685nm Size::2" to receive an ultra narrow

to receive an ultra narrow (70nm) wide H-alpha passband filter of unheared of 95% peak transmission at world‘s lowest price

Provides a flat field

ISO Compliant - proprietary Solar Safe material

and not re-charging regularly can lead to the condition where the battery can not be charged with the supplied charger

The twist-lock eyepiece holder secures eyepieces while keeping them centered in the adapter

Baader IR Pass Filter 685nm Size::2" to receive an ultra narrowBaader IR Pass Filter 685nm The secret of good planetary images, the Baader IR Pass Filter 685nm can greatly improve image sharpness by reducing the effects of seeing. Baader IR Pass filter blocks wavelengths below 670 nm. At these longer wavelengths, planetary images are less disturbed by atmospheric conditions. By combining a luminance image taken with the IR Pass filter, along with RGB frames, overall image sharpness is significantly enhanced.