Focal Length

19mm

17mm

7.5mm

F/#

1.0

1.0

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Format

Ø9.6

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Fixed Athermalized

Dimensions

Ø28.5×28

Ø28×21.3

Ø29×28

Weight

<38g

41.5g

36g

Operating Temperature

-40°C to +80°C

-40°C to +60°C

-40°C to +80°C

Storage Temperature

-60°C to +85°C

-45°C to +65°C

-45°C to +85°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR

AR

DLC

Focus Range

10m-Infinity