Focal Length

18-54mm

20-50mm

40mm

F/#

0.9-1.2

1.1

1.0

Wavelength

8-12μm

8-12μm

8-12μm

Focus Range

2m-Infinity/5m-Infinity

1.5m-Infinity/3m-Infinity

1m-Infinity

Interface

Flange

Flange

Thread

Focus Mechanism

Motorized

Motorized

Manual

Dimensions (mm)

Ø108x151.8

Ø83x112mm (Front flange Ø108)

Ø62×62.8

Weight

1.3kg

800g

<295g

Operating Temperature

-40°C to +70°C

-40°C to +60°C

-40°C to +60°C

Storage Temperature

-50°C to +80°C

-50°C to +70°C

-40°C to +80°C

Front Element Sealing

IP68

IP67

IP67

External Coating

DLC

DLC

DLC

Format

Ø14