Focal Length

20mm

35mm

56-300mm

F/#

1.0

1.0

1.0-1.4

Wavelength

8-12μm

8-12μm

8-12μm

Interface

Thread

Thread

Flange

Focus Mechanism

Fixed Athermalized

Fixed Athermalized

Motorized

Dimensions (mm)

Ø32×20.6

Ø52× 50.2

Ø234x340.99 (to UFPA) (Front flange Ø258)

Weight

35.1g

<179g

<6.1kg

Operating Temperature

-40°C to +60°C

-40°C to +85°C

-40°C to +60°C

Storage Temperature

-45°C to +65°C

-60°C to +85°C

-45°C to 65°C

Front Element Sealing

IP67

IP67

IP67

External Coating

AR

AR

DLC

Format

Ø20