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Focal length: 1200mm Lens construction: 5 elements in 4 groups Aperture Scale: f/11~ f/64 built-in diaphragm mechanism. Diaphragm: MANUAL built into the lens Lens Coating: Multicoated with NIC Picture Angle: 4° 10" Distance Scale: Provided in the Focusing Unit graduated in meters and feet from 50m (150ft.) to infinity (OO). Attachment size: 122mm (P=1mm) Filters: 122mm Screw-in and 52mm screw-in type built into the focusing unit such as AU-1 Lens Hoods: Slip out type built-in front of the lens, hood is turned to lock in place. Lens Mount: 88mm (P=1.5mm) screw-in for connection to front section of the Focusing Unit Dimensions: 133mm dia. x 727mm long (lens head only); 133mm dia. x 898mm with Focusing Unit Weight: 3,700g (Lens Head Only); 6,100g with Focusing Unit AU-1 attached; 4,900g with CU-1
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