Focal Length

75mm

20mm

54mm

F/#

1.2

1.0

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Format

Ø14

Ø14

Ø10

Focus Mechanism

Manual

Manual

Manual

Dimensions

Ø71.5mm×70.5mm

Ø43mm×29mm

Ø57mm×68.6mm

Weight

<320g

82g

<240g

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 +80°C

Front Element Sealing

IP67

IP67

IP67

External Coating

DLC

AR

DLC/AR

Interface

Thread

Thread

Focus Range

5m-Infinity