Was it worth digging out of the dumpster? I'm not trying to be 'flip,' I just wonder if you every used it.
It was never used for photography, it came from an optical computer built in the early 1980s. The computer performed pattern recognition by projecting two images onto each other accurately enough for optical interference to occur when the match was found. The light traveled through the lens "in phase", the wavefront that entered the objective lens was maintained as it went through the lens. It's a paperweight and shelf piece, but I plan on hacking a camera onto it. It is big, and makes a 500/4 Nikkor feel light.
I sent the second lens to a collector in Germany and he sent me a beer Stein. So yes, well worth it!
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