Focal Length

7.5mm

4mm

4mm

F/#

1.2

1.1

1.2

Wavelength

8-12μm

8-12μm

8-12μm

Format

Ø20

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Fixed Athermalized

Dimensions

Ø54.5mm×59.28mm

Ø36mm×32.5mm

Ø34mm×29.2mm

Weight

<190g

71g

≤52.6g

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

DLC

Focus Range

0.5m-Infinity

0.3m-Infinity