... 4 inch, Interline Transfer CCD 23X, f=3.84 to 88.4mm(F 1.6 to 3.2) Color:540 TVLSCM-223123X,D/N1 ... /4 inch, Interline Transfer CCD 30X, f=3.3 to 99.0mm(F 1.6 to 3.2) Color:560 TVL B/W:570 TVLSCM ... inch, Double density interline treneter CCD37X, f=3.5 to 129.5mm(F 1.6 to 3.9) 560 TVL: Color / 680 TVL ... inch, Double density interline treneter CCD37X, f=3.5 to 129.5mm(F 1.6 to 3.9) 560 TVL Color / 680 TVL B ...