Focal Length

50mm

12.3mm

60mm

F/#

2.0

1.0

1.0

Wavelength

7.5-9.5μm

8-12μm

8-12μm

Focus Mechanism

Manual

Fixed Athermalized

Manual

Dimensions

Ø50mm×31.6mm

Ø25mm×15.8mm

Ø72mm×81mm

Weight

126g

<20g

<265g

Operating Temperature

-40°C to +60°C (Depends on Motor)

-40°C to +60°C

-40°C to +60°C

Storage Temperature

-45°C to +65°C

-50°C to +80°C

-40°C to +80°C

External Coating

AR

AR

DLC

Front Element Sealing

IP67

IP67

IP67

Format

Ø8.5

Interface

Thread

Thread

Focus Range

3m-Infinity