Bessell UBVRI filterset
Bessell UBVRI filter set for imaging based on the Johnson-Cousins photometric survey. Photometric filters are used to determine the brightness of stars in various, precisely defined spectral ranges of light.
- U-Bessell: UV photometric filter in UBVRI series
- B-Bessell: Blue photometric filter in UBVRI series
- V-Bessell: Green (Visible) photometric filter in UBVRI series
- R-Bessell: Red photometric filter in UBVRI series
- I-Bessell: NIR photometric filter in UBVRI series
All transmission and blocking (OD) data are actual, measured spectra of representative production lots. Spectra varies slightly from lot to lot. Optical density values in excess of 6 may appear noisy because such evaluations push the resolution limit of low light level measurements.
Classic UBVRI Filterset
Classic Bessell UBVRI filter set for imaging based on the Johnson-Cousins photometric survey