I subsequently got a very inappropriate Private Message from "her" which I brought to the attention of Admins. I've been advised that that account has been removed from the site.
It was very quickly obvious from a number of indications in ‘her’ first few posts in ‘her’ first identity that ‘she’ was up to some kind of mischief. Equally disturbing is that after ‘her’ first account was deleted, ‘she’ was able to rejoin twice more with very similar usernames and it wasn’t immediately picked up.
Overhead projectors were very useful when I was giving talks on colour, because you could play around with various sheets of coloured plastic to show mixing.
Best with two projectors.
Don
The best way to do stereo was to find a stereo camera (basically two cameras joined together) that took 120 size film. Then you need two projectors that took 120-size slides, a silver screen (Kodak made one for this purpose), and polarizing glasses.
I still shoot the odd roll of MF film mostly B&W and occasionally slide film. I develop them myself . Though as I no longer have a dedicated darkroom if printing I tend to scan them
I still have my old darkroom equipment which back in the day I had set up permanently . Now it is too much hassle to set it up for occasional use. Develop scan and print is much easier