Quick Overview Ultra-Dark Neutral Density Filter Filter Factor 6.0, 20-Stop Correction Multicoated Optical Glass Construction Scratch-, Water-, and Smudge-Proof Slim, Double Threaded Metal Frame For Long Exposure and Astrophotography Increase Exposure Time and Aperture Product Description For solar eclipse photography, it is essential you have the right tools to avoid damaging your camera. This lens filter is a good choice as it provides a 20-stop correction with no effect on image coloration. It's optical glass features a multicoating that optimizes light transmission and minimizes glare. It also features a coating that resists scratches, water, and fingerprints, making it easy to clean. The slim aluminum filter ring allows it to be used on wide-angle lenses without vignetting.For solar eclipse photography, it is essential you have the right tools to avoid damaging your camera. This lens filter is a good choice as it provides a 20-stop correction with no effect on image coloration. It's optical glass features a multicoating that optimizes light transmission and minimizes glare. It also features a coating that resists scratches, water, and fingerprints, making it easy to clean. The slim aluminum filter ring allows it to be used on wide-angle lenses without vignetting.