Astrodon COMET Filters

AstrodonSKU: LF3081

Size: 2in
Sale price$200

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Only 7 units left


Lumicon 2 Inch SCT Rear Cell Comet Filter

Lumicon 2 Inch SCT Rear Cell Comet Filter is a narrow band-pass filter (25nm), which isolates the 501nm OIII line and both C2 lines at 511nm and 514nm. The filter cell threads onto a Schmidt-Cassegrain Telescope rear-cell, and presents male SCT threads for accessory attachment. The filter cell allows ease of eyepiece changes without threading/unthreading the filter, and is also easier to change-out than the standard 2? filter cell with gloves on, for cold-weather observing.

The high contrast of the filter reveals the delicate ionized tail of gaseous comets for optimal viewing. The Comet Filter also helps better distinguish gaseous comets from dusty comets, which normally show little contrast gain.

Lumicon filters remain the world?s best and strictest quality control standards are employed throughout the production process. Each Lumicon Comet Filter is individually inspected and scanned with the percentage of light transmittance of the primary emission lines at 501, 511 & 514nm.

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