Focal Length

8.5mm

4.3mm

50mm

F/#

1.0

1.2

2.0

Wavelength

8-12μm

8-12μm

7.5-9.5μm

Focus Range

0.5m-Infinity

Interface

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Manual

Dimensions

Ø28×30.94

Ø39×19.6

Ø50× 31.6

Weight

40g

43.2g

126g

Operating Temperature

-40°C to +80°C

-40°C to +60°C

-40°C to +60°C (Depends on Motor)

Storage Temperature

-45°C to +85°C

-45°C to +65°C

-45°C to +65°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR/DLC

AR

AR