Focal Length

300mm

50mm

260mm

56-300mm

F/#

6.0

1.2

1.3

1.0-1.4

Wavelength

0.9-1.7μm

8-12μm

8-12μm

8-12μm

Focus Range

5m- Infinity

40m-Infinity

30m -Infinity

Interface

Thread

Thread

Flange

Focus Mechanism

Manual

Fixed Athermalized

Motorized

Motorized

Dimensions (mm)

Ø57x141.5

Ø47.8×45.77

Ø213x330.4

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

Weight

<330g

97g

≤4.26kg

<6.1kg

Operating Temperature

-40°C to +60°C

-40°C to +80°C

-40°C to +60°C

-40°C to +60°C

Storage Temperature

-45°C to +65°C

-50°C to +85°C

-50°C to +80°C

-45°C to 65°C

External Coating

AR

AR

DLC

DLC

Format

Ø20