Filter characteristics

Filter	Size [mm]	Type	Wavelength(*)	Curve	Comments
Johnson U	50x50	shortpass	400		1mm UG1 + 3mm BG40; short W/L/ cutoff defined by CCD
Johnson B	50x50	bandpass			1mm GG395 + 1mm BG25 + 2mm BG39
Johnson V	50x50	bandpass			2mm GG495 + 2mm BG39
Johnson R	50x50	bandpass			2mm OG570 + 2mm KG3
Johnson I	50x50	longpass	730		3mm RG9; long W/L cutoff defined by CCD
SDSS z'	50x50	longpass	830		3mm RG830; long W/L cutoff defined by CCD
OII	50x50	interference	372 / 8		two substrate composite
OIII	50x50	interference	501 / 8
H beta	50x50	interference	486 / 6
H alpha	50x50	interference	656 / 8
SII	50x50	interference	673 / 8
SII continuum	50x50	interference	700 / 40
G300	50x50	transm. grating	-		grating only, not a grism, 300 grooves/mm, blazed for 600nm

(*) Given as central wavelength/FWHM or cuton wavelength only for longpass filters or cutoff for shortpass filters. Long wavelength cutoff defined by CCD properties (~1050nm). Derived from actual measurements where transmission curve is linked, otherwise design values are given.