Focal Length

50mm

75mm

35mm

F/#

2.0

1.0

1.0

Wavelength

7.5-9.5μm

8-12μm

8-12μm

Focus Mechanism

Manual

Fixed Athermalized

Fixed Athermalized

Dimensions

Ø50mm×31.6mm

Ø88mm×97mm

Ø52mm×50.2mm

Weight

126g

461g

<179g

Operating Temperature

-40°C to +60°C (Depends on Motor)

-40°C to +80°C

-40°C to +85°C

Storage Temperature

-45°C to +65°C

-60°C to +110°C

-60°C to +85°C

External Coating

AR

AR/DLC

AR

Front Element Sealing

IP67

IP67

IP67

Format

Ø14

Ø20

Interface

Thread

Thread