Coma Corrector 2in

Catalog description

Coma Corrector 2in, part number LUMI035, is a discontinued product from the 2007–2011 catalog. It was last listed at $239.95.

The LL1010 Lumicon Coma Corrector dramatically reduces coma (flared star images) in f/3.5 to f/6 Newtonian telescopes. Optimized for photographic use it may also be used visually.

The Lumicon Coma Corrector is an afocal or 'zero-power' air-spaced doublet lens system and is fully multi-coated on all 4 surfaces to prevent ghosting. The aluminum cell's 48mm (2) threads can be used on all 48mm threaded accessories.

Optimal performance of the Lumicon Coma Corrector is achieved when the center of the last optical element is 3.8 (97mm) from the film plane. The Coma Corrector lens is automatically positioned correctly when threaded directly into the 2 barrel of the Lumicon 2 Newtonian Easy-Guider.

By reducing coma the Lumicon Coma Corrector makes off-axis star images much smaller in photography. The Lumicon Coma Corrector also shrinks the size and improves the quality of off-axis guide stars making guiding much easier. Because of the zero-power lens design the Lumicon Coma Corrector has no chromatic aberration and neither shrinks nor magnifies the image. There is no shift in focus after lens insertion.

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