Wanderer ND Filter for V4-EC/V4-EC-IR Wanderer Cover - 190 mm - WC4ND-190 solar film 0005e- /pixel/sec @-20℃ Exposure Time

0005e- /pixel/sec @-20℃ Exposure Time Range 30μs-3600sec Recommend Gain* 68 Amp Control Nearly Zero Amplifer Glow Shutter Type Electronic Rolling Shutter Computer Interface USB3

Now you can get those quality coma-free astro-images from your reflecting telescope

Three-speed Temperature Control: This lens dew heater comes with three-speed temperature control of high temperature about 55°C (131°F) ~65°C (149°F)

voltage use

Wanderer ND Filter for V4-EC/V4-EC-IR Wanderer Cover - 190 mm - WC4ND-190 solar film 0005e- /pixel/sec @-20℃ Exposure TimeThe ND filter assembly for the 190mm WandererCover is designed specifically for users with fast optics who insist on taking long exposure flats. It extends exposure time by around 32 times. However, in most cases, you DO NOT NEED it WandererCover is designed to be flicker free, ensuring clean, banding free flats even at very short exposures.