Focal Length

7.5mm

40mm

13.4mm

F/#

1.2

0.9

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Format

Ø20

Ø21.8

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Fixed Athermalized

Dimensions

Ø54.5×59.28

Ø54×51.13

Ø22×20.5

Weight

<190g

226.3g

< 25g

Operating Temperature

-40°C to +85°C

-40°C to +80°C

-40°C to +60°C

Storage Temperature

-60°C to +85°C

-45°C to +85°C

-45°C to +65°C

Front Element Sealing

IP67

IP67

IP67

External Coating

HD

AR

AR

Focus Range

1.0m-Infinity