Focal Length

4.3mm

50mm

6.7mm

F/#

1.2

2.0

1.0

Wavelength

8-12μm

7.5-9.5μm

8-12μm

Interface

Thread

Thread

Focus Mechanism

Fixed Athermalized

Manual

Fixed Athermalized

Dimensions

Ø39mm×19.6mm

Ø50mm×31.6mm

Ø21mm×12mm

Weight

43.2g

126g

<16g

Operating Temperature

-40°C to +60°C

-40°C to +60°C (Depends on Motor)

-40°C to +80°C

Storage Temperature

-45°C to +65°C

-45°C to +65°C

-45°C to +85°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR

AR

AR

Focus Range

0.5m-Infinity