Focal Length

20mm

15mm

6mm

F/#

1.1

1.0

1.25

Wavelength

8-12μm

8-12μm

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Manual

Fixed Athermalized

Dimensions (mm)

Ø29×25.5

Ø25×21.5

Ø25×17.4

Weight

≤32g

21.5g

<27g

Operating Temperature

-40°C to +80°C

-40°C to +60°C

-40°C to +80°C

Storage Temperature

-45°C to +85°C

-50°C to +80°C

-45°C to +85°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR

AR

AR

Distortion

<5%

Focus Range

0.3m-infinity

Format

Ø8.2