Focal Length

50mm

54mm

60mm

F/#

2.0

1.0

1.0

Wavelength

7.5-9.5μm

8-12μm

8-12μm

Focus Mechanism

Manual

Manual

Manual

Dimensions

Ø50mm×31.6mm

Ø57mm×68.6mm

Ø72mm×81mm

Weight

126g

<240g

<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

DLC/AR

DLC

Front Element Sealing

IP67

IP67

IP67

Focus Range

5m-Infinity

3m-Infinity

Format

Ø10

Interface

Thread

Thread