Focal Length

7.5mm

25mm

4mm

F/#

0.8

1.0

1.2

Wavelength

8-12μm

8-12μm

8-12μm

Focus Range

0.2m-Infinity

0.3m-Infinity

0.3m-Infinity

Interface

Thread

Thread

Thread

Focus Mechanism

Manual

Manual

Fixed Athermalized

Dimensions

Ø72.5mmx56.96mm

Ø39mm×37.45mm

Ø34mm×29.2mm

Weight

<200g

<75g

≤52.6g

Operating Temperature

-40°C to +60°C

-40°C to +60°C

-40°C to +60°C

Storage Temperature

-45°C to +65°C

-40°C to +80°C

-45°C to +65°C

Front Element Sealing

IP67

IP67

IP67

External Coating

DLC/AR

DLC/AR

DLC

Format

Ø8.2