generally speaking, is it possible to simply attach a digital camera directly to the eyepiece of a microscope (say, with a piece of PVC piping or something) and get decent pictures? My gut tells me that the eyepiece should be removed for this. Are there any changes that need to be made to the camera?

Thanks,
Adam O.

ps.: I ask this because a family friend has recently told me she'd be happy to give me her microscope from her medical school days (late 80s) which she doesn't use anymore. How generous of her! I haven't seen it but I am very excited and will be sure to post pictures of it when I get it.