I was recently given the task to digitize transparent slides from the 1960s. The color transparency slides posed an interesting problem. Conventional scanning was difficult because the slides are small and are designed to be back-lit by a projector. There are dedicated devices available that can scan film negatives, but they are expensive and difficult to find. The standard scanner that I had wasn’t sufficient for the task because it couldn’t resolve enough detail in such a small area (it was 1200 dots per inch maximum). I made a view on this process and uploaded it to Youtube : You can find many of the items used here: Kit.co product collection I created a DIY digitizer with: LED lamp to act as a backlight. The color of light from this lamp is close to daylight. I don’t know what color of light these slides are designed for, but this was my best bet. Cardboard and tape for the slide holding structure and various simple tools to form that. Two camera flash diffusers to even out th...
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