55 mm f/1.0 M34

55 mm f/1.0 M34

Umicore’s GASIR® infrared lenses have been developed for an easy fit with a wide range of camera cores. Our catalog lenses provide a cost-effective solution for high-resolution thermal imaging and sensing applications.
This athermalized infrared lens offers superior performance and is suitable for use with 12 μm VGA detectors or smaller. It is adapted to the latest FLIR Boson® interface. Its low distortion makes it ideally suited for use in thermal imaging applications.

Optical Properties
Product number (HEAR)


Focal length

55 mm



Transmission (HEAR)

< 89%

Focus range

5.0 m to infinity with 0.57 mm refocus


8-12 µm

Mechanical properties
Weight (HEAR)

178 g

Interface thread


Back focal length*


Flange back distance*


value applicable with 0.63 mm Si window (not included)
Environmental properties
Operating temperature

-40°C to +80°C

Storage temperature

-57°C to +105°C

Fields of view

Questions about the product?


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