Focal Length

35mm

75mm

54mm

F/#

1.0

1.0

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Format

Ø20

Ø20

Ø10

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Manual

Manual

Dimensions

Ø52× 50.2

Ø81x84.98

Ø57×68.6

Weight

<179g

<430g

<240g

Operating Temperature

-40°C to +85°C

-40°C to +55°C

-40°C to +60°C

Storage Temperature

-60°C to +85°C

-50°C to +70°C

-50°C to +80°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR

DLC

DLC/AR

Focus Range

7m-Infinity

5m-Infinity