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Lumicon Ultra High Contrast (UHC) Filter - SCT Rear Cell - LF3035

Lumicon Ultra High Contrast (UHC) Filter - SCT Rear Cell - LF3035 - Main image
$193.77 $322.95 In stock

Category: Telescope Accessories

Lumicon UHC Filter for Schmidt-Cassegrain Rear Cell


The original Lumicon Ultra-High-Contrast narrow bandpass filter (24nm) for an SC Rear Cell isolates just the two doubly-ionized oxygen lines (496 and 501nm lines) and H-beta line (486nm) emitted by planetary and most emission nebulae while completely blocking the rest of the overall spectrum of light. The result is extreme contrast between the black background of space and the delicate photons of nebula light needed for near-photographic views of the Orion, Lagoon, Swan and planetary nebulae, among others. This makes the Lumicon UHC Filter the best all-around dark-sky nebular filter on the market today. See for yourself it's truly amazing what the Lumicon UHC filter allows you to see! Lumicon tests every filter individually on a Perkin-Elmer Double Beam spectrophotometer, inscribing on the filter its % transmission for each of the primary lines. Do not settle for cheap imitations.

Not intended for photographic use.

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Customer Reviews (4.6 / 5 · 5 reviews)

Jason V. ★★★★★

I was skeptical about dropping this much on a filter, but the difference on M42 and the Veil Nebula from my suburban backyard was honestly shocking. The rear cell attachment on my SCT was rock solid, no threading fuss at all. If you're hunting faint nebulae, this 24nm narrow bandpass is the real dea

Emily ★★★★★

The 24nm bandpass makes a huge difference—nebulas like the Orion and Lagoon pop with structure I’d never seen through my scope before. Took a bit to get used to the rear-cell threading, but once it’s snug, it feels rock solid.

Nicholas A. ★★★★★

Screwing this onto the rear cell of my SCT took less than a minute, and the difference in the Orion Nebula was immediate—the 24nm bandpass really isolates those oxygen lines so the core pops against a black sky. I've used cheaper filters before, but this one makes faint structure visible without was