USB Fast-Warm 2in1 XL Spliceable Telescopes DSLR Camera Dew Heater Dew Prevention Shield, Active Lens Warmer Strap Anti-Condensation Bands for Canon Nikon Sony Gskyer Celestron (Max Ø 6" /180mm)

USB Fast-warm 2in1 XL Spliceable Astronomical Telescopes DSLR Camera Lens Active Anti Fog Dew Heater Shield Strap, Warmer Bands Strip for Canon Nikon Sony Gskyer Celestron(Max 6 inch/180mm Diameter)

NEEWER USB Lens Heater, 12"/300mm Lens Warmer for DSLR Camera and Telescope, 3 Temperature Regulator Settings, Dew Heater Strip Prevents Dew, Fog & Condensation for Telescope Camera Astrophotography