Sony HVR-Z5U High Definition Handheld Professional Camcorder Zoom Ratio Selectable - Sony G Lens 20x (optical), servo/manual, 30x (digital) when {D.EXTENDER} is set to [ON] Focal Length - f = 4.1 to 82mm (3/16 - 3 in.), (f = 29.5 to 590 mm in 16 - 9 mode, f = 36.1 to 722 mm in 4 - 3 mode 35mm equivalent) Built-In Optical Filters - Clear, 1/4, 1/16, 1/64 ND Recording Frame Rate NTSC model - HDV - 1440 x 1080/60i/30p/24p DVCAM, DV SP - 720 x 480/60i Minimum Illumination - 1.5 lux (auto gain, auto iris, 1/30 shutter)