Focal Length

50mm

20mm

25-105

F/#

2.0

1.0

1.2-1.6

Wavelength

7.5-9.5μm

8-12μm

8-12μm

Focus Mechanism

Manual

Manual

Motorized

Dimensions (mm)

Ø50× 31.6

Ø43×29

Ø82x120.7

Weight

126g

82g

576g

Operating Temperature

-40°C to +60°C (Depends on Motor)

-40°C to +60°C

-20°C to +60°C

Storage Temperature

-45°C to +65°C

-40°C to +80°C

-45°C to +85°C

External Coating

AR

AR

DLC

Front Element Sealing

IP67

IP67

IP67

Format

Ø14

Interface

Thread

Flange

Average Transmission

≥80%

Focus Range

25mm: 3m-Infinity