OPTOLONG 3nm NARROWBAND SHO FILTER SET Size:2" just screw the adapter on

just screw the adapter on the telescope and connect your Canon camera

The QHYCFW3 main body is CNC machined from a single piece of aluminium

Output: 24V DC 5A (120W)

AZ-EQ6 Pro/GT and EQ6-R Pro mounts

2 x RA motor and idler mouinting plates

OPTOLONG 3nm NARROWBAND SHO FILTER SET Size:2" just screw the adapter onThe NEW Optolong 3nm H Alpha, Oxygen III and Sulphur II narrow band filters boost the contrast of emission nebulae and supernova remnants for professional results, even under a bright sky affected by light pollution. This filter is used in combination with the OIII and SII filter to compose a narrowband colour image. The 3nm band pass is only 1% of the entire visible spectrum, increasing the signal to noise ratio and delivering high contrast images