| Quantity | U | B | V | R | I | J | H | K | Notes and units |
| λeff | 0.36 | 0.438 | 0.545 | 0.641 | 0.798 | 1.22 | 1.63 | 2.19 | microns |
| Δλ | 0.06 | 0.09 | 0.085 | 0.15 | 0.15 | 0.26 | 0.29 | 0.41 | microns, UBVRI from Bessell (1990), JHK from AQ |
| fν | 1.79 | 4.063 | 3.636 | 3.064 | 2.416 | 1.589 | 1.021 | 0.64 | x10-20 erg cm-2 s-1 Hz-1, from Bessell et al. (1998) |
| fλ | 417.5 | 632 | 363.1 | 217.7 | 112.6 | 31.47 | 11.38 | 3.961 | x10-11 erg cm-2 s-1 A-1, from Bessell et al. (1998) |
| Φλ | 756.1 | 1392.6 | 995.5 | 702.0 | 452.0 | 193.1 | 93.3 | 43.6 | photons cm-2 s-1 A-1, calculated from above quantities |
These are for the Vega magnitude system and the Bessell et al. (1998) Johnson-Cousins-Glass System.
| Quantity | u | g | r | i | z | Notes and units |
| λeff | 0.356 | 0.483 | 0.626 | 0.767 | 0.910 | microns, from Fukugita et al. (1996) |
| Δλ | 0.0463 | 0.0988 | 0.0955 | 0.1064 | 0.1248 | microns, from Fukugita et al. (1996) |
| fν | 3631 | 3631 | 3631 | 3.631 | 3631 | Jy or x10-23 erg cm-2 s-1 Hz-1 |
| fλ | 859.5 | 466.9 | 278.0 | 185.2 | 131.5 | x10-11 erg cm-2 s-1 A-1, calculated from above quantities |
| Φλ | 1539.3 | 1134.6 | 875.4 | 714.5 | 602.2 | photons cm-2 s-1 A-1, calculated from above quantities |
These are for the SDSS filters on the AB system. Data from Fukugita et al. (1996) repeat their Table 1, rows 1 and 6.
Note that the AB system is defined such that a source with Fnu = 3.63 x 10-20 erg cm-2 s-1 Hz-1 has AB mag = 0 in every filter, and in general ABmag = - 2.5 log Fnu - 48.6.
| Band | λeff | mAB - mVega | MSun(AB) | MSun(Vega) |
| U | 3571 | 0.79 | 6.35 | 5.55 |
| B | 4344 | -0.09 | 5.36 | 5.45 |
| V | 5456 | 0.02 | 4.80 | 4.78 |
| R | 6442 | 0.21 | 4.61 | 4.41 |
| I | 7994 | 0.45 | 4.52 | 4.07 |
| J | 12355 | 0.91 | 4.56 | 3.65 |
| H | 16458 | 1.39 | 4.71 | 3.32 |
| Ks | 21603 | 1.85 | 5.14 | 3.29 |
| u | 3546 | 0.91 | 6.38 | 5.47 |
| g | 4670 | -0.08 | 5.12 | 5.20 |
| r | 6156 | 0.16 | 4.64 | 4.49 |
| i | 7472 | 0.37 | 4.53 | 4.16 |
| z | 8917 | 0.54 | 4.51 | 3.97 |
| Y | 10305 | 0.634 |
These data are mostly from Blanton et al. (2007).
The ST magnitude system is defined such that an object with constant flux Flambda = 3.63 x 10-9 erg cm-2 s-1 A-1 will have magnitude ST = 0 in every filter, and in general STmag = - 2.5 log Flambda - 21.1. A fairly comprehensive list of HST filters and their zeropoints is available on the WFC3 Photometric Zeropoints page at STScI (Thanks to Molly Peeples for sharing the link!).