I'm not home right now, so I can't check the model number on mine, but I can tell you it's a Hewlit-Packard, with a place to insert slides and negatives (which can be "reversed"). It can scan 35mm and 120/620mm negatives.
I have had no problems at all with the Epson V200, scans just about anything. Stores at phenomenal dpi levels. It will scan microfilm, where the images are miniscule.
A simple alternative for a 'one off' is to use the 'tulip' setting (ie macro) and copy the microfilm with the digital camera (such as a Fuji Finepix), the distance between the object and camera is the thickness of the UV mount. I illuminate the microfilm with a standard 'energy saver' bulb, and a sheet of opal plastic between the lamp and slide.
It does not take much to mock up the box.
One thing I will say is that standard set up slide to CD transfer can be VERY limited as far as resolution is concerned, resulting in what I consider to be poor quality, grainy and 'washed out' colours. You may be lucky and find a company that takes more care.