Optec - NextGEN Deep Sky filter, mounted in 50mm bushing (46mm clear aperture)
Deep Sky - Blocks UV, violet and sodium light completely. The filter passes the important emission nebulae features with +90% transmission.
All of the NextGEN series reducers accept the standard 48mm filter thread commonly refered to as 2-inch filter size. The filters from Optec are of the highest photographic quality and are available with many different transmission characteristics to enhance contrast, reduce background illumination or block certain wavelengths. Since the Optec filters have threads on only one side, they cannot be stacked.
|Name||Optec - Optec Deep Sky filter, mounted in 50mm bushing (46mm clear aperture), 4.0 +/- 0.1mm thick.|
|Custom Stock Status||Available - Ships in 3-5 Days|