Stellafane 2008 - Al-Paslow
This is a self enclosed tunnel optical testing aparatus.
One end supports the optic to be tested the other end cotains the testing device. It is enclosed to suppress air currents within the system.

This is a self enclosed tunnel optical testing aparatus.
One end supports the optic to be tested the other end cotains the testing device. It is enclosed to suppress air currents within the system.

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