Optolong Filters Clear Sky Filter 82mm (69501)

The Optolong Clear Sky Filter 82mm is a broadband filter designed to reduce the impact of artificial light pollution, such as that from streetlights, making it easier to capture clear and vibrant images of the night sky. This filter is especially useful for astrophotography, enhancing the contrast and natural appearance of celestial objects like galaxies, star clusters, and the Milky Way even in areas affected by moderate light pollution. It attaches directly to camera lenses or telescopes with an 82mm connector and features multiple coatings for durability and optimal light transmission. The filter is intended for photographic use and is not suitable for direct visual observation through a telescope.

Specifications and Features

Connector (at camera end): 82mm screw-on fitting, compatible with standard camera lenses and telescope objectives

Frame: Lens filter frame made from aluminium for lightweight durability

Mount material: Aluminium

Coating: Multiple plane-parallel coatings for high transmission and scratch resistance

Type of build: Broadband filter, allowing a wide range of wavelengths to pass while blocking specific bands of light pollution

Material: Optical glass

Type: Filter for photographic use

Areas of Application:

• Suitable for astrophotography, including galaxies and star clusters

• Effective for reducing light pollution

• Useful for photographing nebulae and galaxies

• Can be used for all-sky and meteor photography

• Suitable for daylight and twilight sky observation

• Not intended for visual observation or for viewing hydrogen nebulae, planetary nebulae, or supernova remnants

This filter is ideal for photographers who want to improve the clarity and color balance of their night sky images in light-polluted environments.