MODEL NO. DOS500-T2

OPTICAL SPECIFICATIONS

System Type Mangin mirror Cassegrain Catadioptric with internal lens focusing from infinity to 600 feet (182m)
Aperture: 12.625 inches (321mm)
Effective Focal Length: 500mm (20in.) or 1000mm (40in.)
Relative Aperture: F/1.64 (T2) or F/3.3 (T4)
Resolution: 300 LP/mm at 589nm
Useable Format: 16mm Dia.
Field of View Across 16mm: 1.84 degrees at 500mm E.F.L. 0.91 degrees at 1000mm  E.F.L.
Back Focus: 0.690 in.

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MECHANICAL SPECIFICATIONS

Length of Barrel: 12.5 inches (31.75cm)
Diameter of Barrel: 13.375 inches (34cm)
Overall Length to Back Focus: 18.8 inches (47.75cm)
Overall Height of Unit: 14.75 inches (37.5cm)
Center line Height: 8.0 inches (20.3cm)
Materials Used in Construction: Aluminum alloy with stainless steel fasteners
Weight of Unit Less Camera: 56 lb. (25.45Kg)
Type of Camera Support: Adjustable platform with special slip-in "C" mount adapter.

 

OPTIONAL FEATURES

Motorized Focal Length Change Custom Mounting Bases for Lens and Camera
Remotely Operated Focus Special Mounting Configurations
Remotely Operated ND Filter Wheel Assy.