SLR cameras are more accurate for close-up photos. Yes, Medamation MD does have password protection for all patient records but you can still transfer control of a record to another physician. Although the original record cannot be changed, a duplicate record can be created and modified. In addition, addendums to previous charts can be added at any time. That's difficult to estimate.
Some Doctors come up to speed very quickly while others require a little more time.
The most important thing to remember is that a little practice initially will result in enormous productivity gains in the long term. A. Medamation is ODBC compliant. All data can be easily migrated to another compatible database by any competent programmer.