This is a pretty unusual item. It is a straight monocular tube (intended for mounting a camera system) as supplied with the Bausch & Lomb Dynazoom series of microscopes. There is no tube lens in the system, nor is there any zoom mechanism. This is the simplest of the tubes available for the Dynazoom instruments. I believe the black versions of the Dynazoom (which were of later production than the gray ones) were infinity corrected, so the tube lens would have been in the microscope stand or the nosepiece.

This tube probably dates from the late 1960�s, perhaps as late as the early 1970�s. It is in exceptional condition � almost new. . . Quite a neat vintage piece of equipment

Location MB 44-3

Photo set 458.

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***MPN
***OEM Bausch & Lomb (B&L)
***SKU*** DP025

This Zeiss control panel is a slightly simplified version of the MC-63 electromagnetic shutter control panel. The MC63 camera system, developed for the Zeiss photomicrography photo ports, consisted of several modular building blocks. Central to the system was the housing with the electromagnetic shutter. The base of the housing clamped onto the photo tube of the microscope in which was installed a photographic projection ocular. The top of the unit carried the relay lens system and film back, usually a 35mm camera system or 4×5 large format back (special Polaroid backs were also available). Within the shutter body was a small beam splitter that diverted a small portion of the light to a photo-diode detector. This was connected (via the same cable as operated the shutter) to the control unit.

The exposure was timed automatically after programming the ASA or DIN information into the control panel. Course steps were set via the upper knob, and fine steps via the lower knob (-1, 0, +1). DIN settings between 6 and 37 were possible (ASA 3 to 4000). A simple release button actuated the shutter. There is also a �test� button that times the exposure without opening the shutter.

Green LED indicates power �ON� position. Yellow LED next to shutter glows when shutter is open, and red LED when the �test� button is selected (yellow LED will glow for duration of timed exposure, but without exposing film).

Control unit requires standard IEC type line cord (not included), and is currently set for 120v mains. 220v may also be selected, but fuse should be exchanged for proper protection. Condition of the control panel is excellent, but it has not been tested with a shutter unit at this time. As soon as we have one with which to test it, we will add that information to the listing!
***MPN 47 74 20
***OEM Zeiss
***SKU*** 12266