Bausch & Lomb Deuterium Source power supply (acts 2 and 3)

Another deuterium source showed up on epay and the seller took my offer.  I had three power supplies and one head, now I have 3 heads!  When it rains it pours.

These are pretty rare, and this is one of the best units for UV monochromatic work that is available.  other deuterium sources are scrounged from UV-VIS devices or AA spectrophotometers which have been broken up.

Of course you can buy one new and pay lots more than this but the newer units are not as nifty as this one.

Lamp with vent stack removed

exit hole, with filter clips

power supply connector

This unit is pristine

Lapel pin collection

2 Microdata 5 year pins, a GTE pin with 2 blue stones, Rotary pin, some sort of Lodge pin, plus a jade bead pin.

There are a lot of these in triplicate, shot with camera HDR mode, which brackets the exposures.

Fastair lenses. Elgeet and Wollensak.

2 inch, 35mm, 2 x 13mm (1/2 inch)

in 16mm format 1inch, 25mm is "normal" lens.  This 50mm is F2, which is pretty fast for 16mm telephoto.

both 13mm lenses are very fast, f1.5

Celestron Nexstar 8

Celestron Nexstar 8

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