Focal Length

75mm

25mm

50mm

F/#

1.2

1.0

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Format

Ø14

Ø8.2

Ø19.7

Focus Mechanism

Manual

Manual

Fixed Athermalized

Dimensions

Ø71.5mm×70.5mm

Ø39mm×37.45mm

Ø59mm×69.56mm

Weight

<320g

<75g

<188g

Operating Temperature

-30°C to +70°C

-40°C to +60°C

-40°C to +60°C

Storage Temperature

-35°C to +75°C

-40°C to +80°C

-50°C to +85°C

Front Element Sealing

IP67

IP67

IP67

External Coating

DLC

DLC/AR

DLC

Focus Range

0.3m-Infinity

Interface

Thread

Thread