Focal Length

20mm

50mm

35mm

F/#

1.1

2.0

1.0

Wavelength

8-12μm

7.5-9.5μm

8-12μm

Interface

Thread

Thread

Focus Mechanism

Fixed Athermalized

Manual

Fixed Athermalized

Dimensions (mm)

Ø29×25.5

Ø50× 31.6

Ø52× 50.2

Weight

≤32g

126g

<179g

Operating Temperature

-40°C to +80°C

-40°C to +60°C (Depends on Motor)

-40°C to +85°C

Storage Temperature

-45°C to +85°C

-45°C to +65°C

-60°C to +85°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR

AR

AR

Format

Ø20