Focal Length

4mm

10.5mm

50mm

F/#

1.2

1.0

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Focus Range

0.3m-Infinity

5m-Infinity

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Fixed Athermalized

Dimensions (mm)

Ø34×29.2

Ø18×15.11

Ø59×54.5

Weight

≤52.6g

10.5g

153g

Operating Temperature

-40°C to +60°C

-40°C to +80°C

-40°C to +60°C

Storage Temperature

-45°C to +65°C

-45°C to +85°C

-45°C to +65°C

Front Element Sealing

IP67

IP67

IP67

External Coating

DLC

DLC

AR

Average Transmission

≥91%(AR)