Filter Chroma B-Bessell 2", mounted (SKU: CT-27052-2M)

Chroma B-Bessell 2" filter, mounted (Chroma, SKU: CT-27052-2M) is a B-band photometric filter in the Chroma High-T Bessell UBVRI series. It is intended for measuring the brightness of astronomical objects in the blue region of the spectrum, using the Bessell realization of the Johnson-Cousins system.

Key features

• transmission profile for the B 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 B-Bessell 2", mounted

Technical specifications

• manufacturer: Chroma Technology
• filter type: photometric
• system and band: Bessell UBVRI, B
• center wavelength (CWL): 440 nm
• mount standard: 2"
• external and internal mount threads: M48 × 0.75
• mount outer diameter: 50.7 mm
• minimum clear aperture: 43 mm
• nominal overall mount height: 7 mm
• glass substrate thickness: 3 mm
• coatings: hard-sputtered, antireflection

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