Ideally suited to digitize SW Negative

I use the dehydrator to Lightbox 6 times 6 SW negatives, some of which are already 60 years of age to digitalisieren.Ich Scan the lying on the backlight negative with a Canon EOS with macro Objektiv.Durch uniform illumination, the results are amazing gut.Nach the processing in LR 4 are the printouts of current digital images SW not unterscheiden.Ein small flaw is the lack of power supply.