Filter Chroma R-Bessell 65x65 mm, unmounted (SKU: CT-27053-65X65)

Chroma R-Bessell 65 × 65 mm filter, unmounted (Chroma, SKU: CT-27053-65X65) is a R-band photometric filter in the Chroma High-T Bessell UBVRI series. It is intended for measuring the brightness of astronomical objects in the red region of the spectrum, using the Bessell realization of the Johnson-Cousins system.

Key features

• transmission profile for the R band of the Bessell UBVRI system
• designed for photometry and calibrated imaging
• high-transmission sputtered coatings in the High-T series
• durable hard-sputtered coatings on a single glass substrate

Included items

• filter Chroma R-Bessell 65 × 65 mm, unmounted

Technical specifications

• manufacturer: Chroma Technology
• filter type: photometric
• system and band: Bessell UBVRI, R
• center wavelength (CWL): 645 nm
• configuration: unmounted
• shape: square
• glass dimensions: 65 × 65 mm
• glass substrate thickness: 3 mm
• coatings: hard-sputtered, antireflection

The filter lets you add R-band brightness measurements to a photometric setup.