Good morning, Analog;
I like your chosen label. And, while I do have experience with the Donner Scientific Company Model 30 Desktop Analog Computer, and the Systron-Donner Model 3600 "Desk" Analog Computer (never did get to work with any of the competitive EAS equipment in the same time period), the one that I am most proud about is being the last person to run a simulation on the GEDA, the General Electronic Development Analog computer which was used to develop fire-control (or firing-control) systems for US Naval guns during World War II. It took two days to go through the 8 racks of equipment making some minor repairs and all of the adjustments to get the system ready to have the program board dropped into position and then operate the long lever to bring the program board up into position to make contact with the large connecting socket assembly.
Large lenses? Probably the most impressive "large lens" that I can suggest that you examine is the Canon Model 7 Rangefinder Camera with the Canon f/0.95 50mm lens that projected down abut 1/4 of an inch below the bottom plate of the Canon 7 body.
Yeah, Canon and Nikon (Nippon Kogaku K. K. back then) were in a horsepower race back in the late 1950s with their Model 7 and Model SP rangefinder cameras, and the Canon f/0.95 lens I think was the winner. That was one impressive piece of glass. Even Burt Keppler commented about it. The resolution was not as good as the f/1.4 lens and similar products, but the physical size really was impressive.
It can still be found occasionally, and it is still much less expensive than the current equivalent lenses from Ernst Leitz Wetzlar, or Leica.