Zoom camera objective680425/680426 Series

Optical: Narrow FOV: Wide FOV
Focal Length: 900mm: 45mm/72mm*
F/#: 4.0
Average transmission (3.4-5.0μ): ≥ 70% for HCLR coating

680425
Based on Zoom Lens: 15-300mm f/4 680084
Cold stop to FPA Distance: 19.4mm
Cold Stop CA: Ø4.85mm
BFL: 25.1mm in air

680426
Based on Zoom Lens: 15-300mm f/4 680204
Cold stop to FPA Distance: 20.47mm
Cold Stop CA: Ø5.1mm
BFL: 27.12mm in air

Distortion: <5% <7% Minimum Focus Range: 200m 5m Nuc: By defocus, blur diameter 3mm Mechanical Focus Mechanism: Motorized Focus Time (minimum range to ∞): ≤ 1 sec Zoom Mechanism: Motorized Zoom Time (NFOV to WFOV): ≤ 7 sec at -32°C; ≤ 5 sec at T ≥ 0°C Type : zoom Other characteristics : motorized Focal length : 45 mm, 72 mm, 900 mm (1.77 in)