Focal Length

21mm

4.52mm

4mm

F/#

1.0

1.1

1.2

Wavelength

8-12μm

8-12μm

8-12μm

Format

Ø20

Ø10

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Fixed Athermalized

Dimensions (mm)

Ø45×62.33

Ø29× 25.5

Ø34×29.2

Weight

130g

<38g

≤52.6g

Operating Temperature

-40°C to +60°C

-40°C to +85°C

-40°C to +60°C

Storage Temperature

-45°C to +65°C

-60°C to +85°C

-45°C to +65°C

Front Element Sealing

IP67

IP67

IP67

External Coating

HD

AR

DLC

Focus Range

0.3m-Infinity