Focal Length

45mm

20mm

4mm

F/#

1.1

1.0

1.2

Wavelength

8-12μm

8-12μm

8-12μm

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Fixed Athermalized

Dimensions (mm)

Ø51×51.44

Ø32×20.6

Ø32×30.73

Weight

130g

35.1g

52g

Operating Temperature

-40°C to +60°C

-40°C to +60°C

-40°C to +80°C

Storage Temperature

-50°C to +70°C

-45°C to +65°C

-45°C to +85°C

Front Element Sealing

IP67

IP67

IP67

External Coating

DLC

AR

DLC

Focus Range

1m-Infinity