(FS) Thermal image zoom lens

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Here is a massive germanium zoom lens for thermal imaging. Theres more than 1Kg of Ge in this 4 element lens with coated optics.
A knob rotates a set of 2 lenses in the middle of the setup and switches from a wide field of view to a narrow one. The whole frame is made of aluminum.
As seen in the pictures it easily interfaces a Fluke thermal camera.
The second picture is a zoom at the guy at the middle in the first picture.

Will sell for 500€ plus shipping, a real bargain for this material.
Oops, forgot, I have 2 units.

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more pics

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and more pics

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and the last two

[Fraser]

Nice lens 

Sadly beyond my hobby budget though.

Hope they find good homes

Fraser