Cloud Break Optics

I-Bessell Filter

I-Bessell Filter - Main image
$192.5 $275 In stock

Category: Filters

The I-Bessell Filter from Chroma is an NIR photometric filter in the UVBRI series, offered in a range of mounted and unmounted sizes to suit different imaging setups.

  • NIR photometric filter in the UVBRI series
  • Durable, high-transmission sputtered coating
  • Brand: Chroma
  • Available in 1.25" Mounted, 2"-M48 Mounted, 31mm Unmounted, 36mm Unmounted, 50mm Unmounted, 50 x 50mm Square, and 65 x 65mm Square sizes
  • Listed as a special order item
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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Avery I. ★★★★★

The mounted size fit perfectly into my setup without any adapters needed. I've noticed a definite improvement in my NIR photometric data since swapping filters.

Kevin ★★★★★

The unmounted version slid perfectly into my filter wheel without any adapters needed. Cut down the NIR background in my wide-field shots noticeably, making star colors pop better.

Lucy X. ★★★★★

Finally got the mounted size and it fits perfectly in my filter wheel. The NIR response is clean and the profiles match the expected Bessell curve.