I have some 35mm slides that I would like to digitalize. I am thinking about building something like this (modifying a slide projector to feed the slides and mounting a dslr to photograph the slide currently shown by the projector). I am wondering what type of lens would be best for the job. The projects I have seen uses a macro lens but to my question.
For this kind of flat to flat photography where both the sensor and subject is 35mm across what are the advantages and disadvantages of different lens types like macro lenses, projector lenses, and enlarger lenses?
What I have figured out of my own, might contain misconceptions.
- Macro lenses: no fussing around with adapters and extension tubes
- Projector lenses: tend to come with used projectors so it will be cheap
- Enlarger lenses: optimized for flat to flat projection
I obviously realize that I will have to adapt any non-native lenses and add extension tubes until I can focus at macro distances.
So my question: Which kinds of lenses ate suitable for this and what are their respective advantages and disadvantages?