I was asked to help a friend get an image from a 1960's slide he took back then...
Below is the setup and the result
Torch/flashlight...lunchbox...plastic bag ....condenser lens... black paper and the slide
Shot with 105mm macro on my D800e
Quite happy with the result
It works. I've used a somewhat similar setup, but in my case, I used a box with a rectangle cutout for the slide, then used a flash pointing into the box to provide even light. Also worked fine.
Thanks, good idea, I have similar problem. I think I even have somewhere a special tool (lens and mount for slides) for copying slides. Just no frames. However my slide is of 110 format.