There are three tables: one is for the nominal filter, computed assuming a convergent f/1.45 beam as in LBC-Blue and the other two (labelled
1 and 2) are measurements made in a collimated beam for the 2 Sloan-r' filters. The measured curves give accurate transmissivities while the computed
curve shows more realistic central, cut-on and cut-off wavelengths since it takes into account the blueshift resulting from the convergent beam effect.
LBCB_Sloan_g.txt: SDSS-g' transmission data: theoretical, computed for convergent f/1.45 beam