Digital workflows for the Archives is a 2013 article from ProfHacker that walks you through the workflow of a researcher who chose to use his iphone and a scanner app rather than an SLR camera. While there are now more options in terms of tools, the same workflow could be applied.
#twitterstorians in the archives:
I visited 16 archives on 3 continents, took digital photos of 100K+ pgs of archival material, + gathered thousands more pgs in other formats to write #ForgottenPeace. As a result, I have a comprehensive system of archival methodologies + best practices #twitterstorians pic.twitter.com/1aJiWNnDxS— Robert A. Karl (@RAKarl) July 21, 2018
A digital camera, whether it is a high-end DSLR, palm-sized point & shoot, or iPhone, can be used as a scanner. And it can save you a lot of time and expense, especially if you do research in rare book collections and archives. This guide covers the issues that camera-wielding researchers might encounter in using cameras as research tools in libraries and archives.
Policies developed for camera use in special collections facilties generally provide safeguards for issues as: