J'ai utilisé une méthode étrange mais efficace pour scanner ponctuellement des négatifs. Je poste ici un message que j'avais posé sur un autre forum. (ha oui et j'ai la flemme de traduire aujourd'hui.. )

I tried the dSLR + enlarger method.
I used a Meopta enlarger to project a 135 BW negative on a sheet of white paper roughly A4 size. I then mounted a tripod just in front of the enlarger pointing down with the smallest possible angle. I used a Canon EOS 300D with a Tamron 28-75/2.8 lens set at 50mm, f/5.6, Av priority, ISO 100, RAW.
I took a blank shot without negative to get the light fallof. Load everybody in photoshop, invert the blank shot layer and put it in overlay, adjust opacity, PTLens to correct for distortions, invert, levels, curves, dusts.
I'm rather pleased by the result. I ran the whole roll of 36 exposures in less than 20 minutes through it. It is good enough for web usage which is what I need.

Here are the results :
scan00 : raw output from the camera
scan01 : the best I could have with scanning the negative with my crappy Canon MP730 Photo
scan02 : final output