ZWO UV/IR Blocking Filter - 2" solar glasses Many Astrophotographers prefer a threaded

Many Astrophotographers prefer a threaded connection because lateral clamping can sometimes tilt the corrector or flattener

Power supply: via mount

Experience unparalleled connectivity with ZWO´s enhanced external dual-band antenna

This product is certified to work flawlessly from -40 °C to +85 °C

ZWO UV/IR Blocking Filter - 2" solar glasses Many Astrophotographers prefer a threadedThis filter blocks out ultraviolet and infrared light which improves the imaging and viewing on many telescopes. This is especially useful for camera sensor chips that have no UV protective AR glass and are sensitive to UV and IR light. The filter is used for luminance imaging and for Moon and Planet images. Infrared or IR light is invisible to the human eye, and so even though most telescopes are not designed to focus IR light, it does not matter