UHC Filter for 1.25" Telescopes for Clearer Celestial Views Perfect for Astrophotography Good Surface Precise

Features: Brand new and high quality Substrate: precise polished substrate, good parallelism and surface precise. Double-sided fine polishing and polishing process ensures high parallelism Coating: double-sided multi-layer coating, the backside increases the broadband penetration film and reduces the reflected light Ultra-high contrast filter (UHC filter) is the choice of harmful light filter, such as glare and ghosting, so that vision is more perfect. Significantly reduce light pollution, suitable for urban and suburban observation The 1.25inch UHC telescope filter is designed to improve the image contrast of the subject. Diameter: 1.25 " simply attached to the eyepiece, installed in a solid shells Light pollution filters are designed to improve the visibility of deep sky objects by blocking out the mercury vapor, sodium vapor, and other such emission lines from man-made or natural sources which contribute to light pollution. In turn, these filters allow a broad range of more useful wavelengths to pass to the eye or imaging sensor. By selectively screening out of some of the background sky glow, the contrast is increased and allows deep sky objects to stand out against the background. Also improves contrast on reddish planetary detail.

Specifications: Material: Optical Glass Lens, Aluminum Frame Shape: Round Barrel diameter: 1.25'' UHC Filter Size:Approx.28.5x0.6mm/1.12x0.02in Thread: M28.5x0.6mm Glass Thickness:1.85mm Type: Ultra High Contrast Filter (UHC Filter)

Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.

Package includes: 1xUHC Filter