Clear Sky 77mm Filter Screw on Lens
Clear Sky Filter is a light pollution filter supressing light pollution to improve contrast of the Milk Way. Working in Bortle 2-3 levels with natural color.
  • Description

  • Specification

1. Optolong Clear Sky Filter Introduction

  • A screw on filter with the easiest installation way like UV filter.
  • Supress light pollution to make the night sky clearly.
  • Enhance the contrast of images.
  • To bring up the colors, fascinating experience.


2. Packing

  • Outer Box: silve box
  • Plastic Box: PP material
  • Lining: imported high pressure white EVA material


3. Filter Performance


Milk Way Optolong Clear Sky by Yuri Beletsky


Stone Forest under the Milk Way by Yule俞乐


Large Magellanic Cloud Optolong Clear Sky filter by Yuri Beletsky


4. Warm Reminder:

  • About Color: The package may different due to different photography environment, lighting. What you have seen in the picture is absolutely what it is being. You might feel somewhat of color different subject to the monitor and camera, please refer to the material item.
  • About Coating: The interference items will show rich colors in different light environment, which is normal phenomenon.
  • About Product Object: Product specifications may change to improve product quality, and that updates to the specifications will be published as soon as possible.
  • About Product Overview: Please note that Clear Sky filter with same design, same raw material . Size is the only difference.

Available Size:

  • 77mm
  • 82mm