Focal Length

40mm

19mm

75mm

F/#

1.0

1.0

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Focus Range

3m-Infinity

Format

Ø8.2

Ø9.6

Ø20

Interface

Thread

Thread

Thread

Focus Mechanism

Manual

Fixed Athermalized

Fixed Athermalized

Dimensions

Ø45mmx51.69mm

Ø28.5mm×28mm

Ø84mm×95mm

Weight

< 91g

<38g

<400g

Operating Temperature

-40°C to +60°C

-40°C to +80°C

-40°C to +80°C

Storage Temperature

-45°C to +65°C

-60°C to +85°C

-45°C to +85°C

Front Element Sealing

IP67

IP67

IP67

External Coating

DLC

AR

DLC/AR