R-Bessell Filter

$195.25 ~~$275~~ In stock

The R-Bessell Filter from Chroma is a red photometric filter in the UVBRI series, offered in a range of sizes for different imaging and photometry setups. It uses a durable, high-transmission sputtered coating.

Red Bessell filter in the UVBRI photometric series
Brand: Chroma
Durable, high-transmission sputtered coating
Available in mounted and unmounted sizes: 1.25" Mounted, 2"-M48 Mounted, 31mm Unmounted, 36mm Unmounted, 50mm Unmounted, 50 x 50mm Square, and 65 x 65mm Square
Listed as a special order item

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Customer Reviews (4.8 / 5 · 5 reviews)

Sophia ★★★★★ Oct 20, 2026

Installed this red photometric filter in my imaging train and immediately noticed how cleanly it cut off unwanted wavelengths. The transmission is noticeably higher than my old filter, which cut my exposure times by almost a third.

Julian ★★★★★ Oct 19, 2026

I was worried about durability with photometric filters, but this one's held up perfectly after swapping it in and out of the filter wheel dozens of times. The transmission on my test exposures is noticeably cleaner compared to the old generic red filter I was using.

Ella ★★★★★ Oct 18, 2026

The sputtered coating on this filter is noticeably more durable than the cheaper alternatives I've tried. It cleaned up easily after a dusty session without any scratches.