Focal Length

20mm

35mm

15mm

F/#

1.1

1.0

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Manual

Dimensions

Ø29mm×25.5mm

Ø52mm×50.2mm

Ø25mm×21.5mm

Weight

≤32g

<179g

21.5g

Operating Temperature

-40°C to +80°C

-40°C to +85°C

-40°C to +60°C

Storage Temperature

-45°C to +85°C

-60°C to +85°C

-50°C to +80°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR

AR

AR

Format

Ø20

Distortion

<5%

Focus Range

0.3m-infinity