Hi, I use a darkroom enlarger. There are several draw backs to that such as the negative holder needs to be enlarged since microfilm uses part of the film that would have holes on regular camera film. Also the image can't be rotated easily. I use a Besler 67 which has been on the market for over 20 years and has an accessory for bulk rolls which is the same thing as microfilm basically. Biggest advantage is I can use my darkroom to make a much better copy at a very low cost.

Dwight David Dennis