Focal Length

4mm

15mm

4mm

F/#

1.1

1.0

1.2

Wavelength

8-12μm

8-12μm

8-12μm

Focus Range

0.5m-Infinity

1m-Infinity

0.3m-Infinity

Interface

Thread

Thread

Thread

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Fixed Athermalized

Dimensions (mm)

Ø36×32.5

Ø66×77.43

Ø34×29.2

Weight

71g

＜300g

≤52.6g

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

-45°C to +65°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR

DLC/AR

DLC