Focal Length

75mm

8.5mm

20mm

F/#

1.0

1.0

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Focus Range

7m-Infinity

0.5m-Infinity

Format

Ø20

Interface

Thread

Thread

Thread

Focus Mechanism

Manual

Fixed Athermalized

Fixed Athermalized

Dimensions

Ø81mmx84.98mm

Ø28mm×30.94mm

Ø32mm×20.6mm

Weight

<430g

40g

35.1g

Operating Temperature

-40°C to +55°C

-40°C to +80°C

-40°C to +60°C

Storage Temperature

-50°C to +70°C

-45°C to +85°C

-45°C to +65°C

Front Element Sealing

IP67

IP67

IP67

External Coating

DLC

AR/DLC

AR