Ultra High Contrast UHC 1.25 inch telescope filter，Eliminates light pollution, Improves astrophotography contrast, Aluminum alloy frame, Stackable filter structure, Astronomical components workwarehouse fast-charging 4 devices at the

fast-charging 4 devices at the same time

3~45m/s Temperature Range -10℃~45℃ （14℉~113℉） -10℃~45℃ （14℉~113℉） -10℃~45℃ （14℉~113℉） -10℃~60℃ （14℉~140℉） -30℃~70℃ (-22℉~158℉) 0℃~45℃ （32℉~113℉） Back Light ✓ ✓ ✓ ✓ ✓ Auto Power Off ✓ ✓ ✓ ✓ ✓ ✓ Data Hold ✓ ✓ ✓ USB Connect ✓ Wireless Bluetooth APP ✓ Barometer Meter ✓ Air Flow Setting（CFM） ✓ ✓ Altitude Measurement ✓

P600 and P800 grit aluminum oxide sanding belts (6 total)

Made of thick aluminium alloy and heavy duty spring

Ultra High Contrast UHC 1.25 inch telescope filter，Eliminates light pollution, Improves astrophotography contrast, Aluminum alloy frame, Stackable filter structure, Astronomical components workwarehouse fast-charging 4 devices at theUltra High Contrast UHC 1. 25 inch telescope filterEliminates light pollution, Improves astrophotography contrast, Aluminum alloy frame, Stackable filter structure, Astronomical components Product Features Multi layer optical coating,eliminates urban mercury and sodium lamps artificial light pollution, clearer celestial objects, higher the nebula contrast and astronomical photography image quality. 1. 25 inch telescope filter, standard thread M28.