Focal Length

8.5mm

4.3mm

50mm

F/#

1.0

1.2

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Focus Range

0.5m-Infinity

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Fixed Athermalized

Dimensions

Ø28mm×30.94mm

Ø39mm×19.6mm

Ø59mm×69.56mm

Weight

40g

43.2g

<188g

Operating Temperature

-40°C to +80°C

-40°C to +60°C

-40°C to +60°C

Storage Temperature

-45°C to +85°C

-45°C to +65°C

-50°C to +85°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR/DLC

AR

DLC

Format

Ø19.7