Dark-Sky Filter 77 mm Slim

The Dark-Sky 77 mm Slim filter from Explore Scientific is specifically designed to enhance the photography of aurorae and deep sky objects, even in light-polluted environments. Thanks to its unique technology, this filter effectively blocks yellow light at 590 nm from sodium vapor lamps while allowing key wavelengths for capturing aurorae (550 nm for green and 630 nm for red) to pass through. With its ultra-slim design of only 4 mm, this filter is perfectly adapted to wide-angle lenses without the risk of vignetting.

Characteristics :

• Filter thread: 77 mm
• Blocks yellow light from sodium vapor lamps at 590 nm
• Transmits more than 90% of wavelengths 550 nm (green) and 630 nm (red)
• Designed for aurora and deep-sky photography
• Reduces light pollution, ideal for urban photography
• Special optical glass finish with neodymium oxide
• Anodized black aluminum housing
• Ultra-slim height of 4 mm (Slim)

Advantages :

• Increased contrast and details in aurora and nebula photographs
• Compatible with wide-angle lenses, without vignetting
• Enhances red and green tones, difficult to correct in post-processing
• Ideal for landscape photography, Milky Way, and natural nighttime scenes
• Effectively blocks light pollution sources, such as streetlights and greenhouses

Compatibility :

• Compatible with all camera lenses equipped with a 77 mm filter thread

The Dark-Sky 77 mm Slim filter from Explore Scientific is an essential tool for astrophotographers and nighttime landscape enthusiasts who want to capture clear and natural images in light-polluted skies.