Lumicon 2" Minus Violet Filter
Use Lumicon's 2" Minus Violet Filter to improve astrophotography using any lens that you choose. The Minus Violet filter passes the maximum amount of visible light, including the full blue, green, yellow, and red portions of the spectrum. It absorbs violet and ultraviolet light below 420 nm and thus eliminates blue halos around bright stars in color photography. In photography, it eliminates bloated and swollen star images caused by violet and ultraviolet light, which telephoto lenses cannot focus exactly, due to chromatic aberration.
Designed using specially made colored glass that is optically flat, the Minus Violet Filter features anti-reflection coatings on all optical surfaces. Be sure to use this filter for all telephoto lenses to achieve pinpoint star images.
Dimensions & Specifications
Filter Size: 2" (50.8 mm)
Filter Type: Color Correction/Contrast
Filter Shape: Round
Mounted or Unmounted:
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