This I realise is a long shot. After my mum died I found a Super 8 cartridge in her movie camera. It had been there for many years and I thought it probably wouldn’t be worth developing but I sent it off anyway. This was when Kodachrome was on the way out for developing so I had to send it from Scotland to the US. I got a DVD of the processed film and it was as expected very poor quality, bleached out, generally grey, but there was an image.
I would like informed advice on what sort of approach to take in improving the image.