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1/119 f/2.5 8.2 mm ISO 200

NIKON E990

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DSCN1351

DSCN1351
This UHV system went to the 10^-10 mbar range. It had a scroll-pump, turbo-pump, ion-getter-pump and a titanium-sublimation-pump. Pressure was measured with a Bayard-Alpert hot-cathode type gauge.

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