ll{
Hoya 4 standard Hoya filters; from 300 to 750 nm at 10nm intervals.
}
Arguments
format
A colorSpec object with quantity equal to 'transmittance' and 4 spectra:
ll{
R-60 long-pass red filter with cutoff about 600nm
G-533 band-pass green filter with peak about 533nm
B-440 band-pass blue filter with peak about 440nm
LB-120 Light-balancing Blue filter with mired shift equal to -120
}