Focal Length

20mm

18-54mm

25-225mm

F/#

1.0

0.9-1.2

0.85-1.3

Wavelength

8-12μm

8-12μm

8-12μm

Interface

Thread

Flange

Flange

Focus Mechanism

Fixed Athermalized

Motorized

Motorized

Dimensions (mm)

Ø32×20.6

Ø108x151.8

Ø204x307.4 (Front flange Ø235)

Weight

35.1g

1.3kg

<6.1kg

Operating Temperature

-40°C to +60°C

-40°C to +70°C

-40°C to +60°C

Storage Temperature

-45°C to +65°C

-50°C to +80°C

-40°C to +80°C

Front Element Sealing

IP67

IP68

IP67

External Coating

AR

DLC

DLC

Focus Range

2m-Infinity/5m-Infinity

15m-Infinity