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77/82mm Optolong Clear Sky Filter for Astronomy Telescope Facing For Sale

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77/82mm Optolong Clear Sky Filter for Astronomy Telescope Facing:
$268.68

1. Optolong Clear Sky filter, design of anti-reflecting coating, reduce the interference of dazzle light

2. Optolong Clear Sky Filter blocks the city Na and Hg light pollution so that improve contrast effectively

3. you can twist it in front of camera lens directly like UV lens

4. More important is its performance, no wavelength shifting, no color gradient through the images

   1. Brand: OPTOLONG

   2. Item´s Name: Clear Sky Filter

   3. Substrate: Optical Glass

   4. Thickness: 1.0mm

   5. Size: 77/82mm

   6. Frame: CNC Processing

   7. Weight: 61g/2.15oz

Parcel:

• Optolong 77 or 82mm Clear Sky Filter

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