I wish to pick a bit of a bone about the challenges of shooting portraits being more difficult on film. I regularly (4-5 times a year) do what are termed 'FOH pictures' for theatre groups. These are portraits all taken with the same camer exposure setting, backdrop and lighting of the performers and production staff for a community theatre show.
I make sure to put the subject on a stool, so they stay put, and the camera stays on a tripod, and moves up and down a bit to account for variations in subject height.
I do some in b&w, some c-41, and some with digital.
I print b&w, print ra-4 colour or b&w, or go and edit digital files when I digiatk capture and hand of the printing to a shop that prints straight onto foam core or coreflute.
I find that by controlling variables when taking the picture, it is very fast to print the film images after you do a contact sheet and select the frame to use for each individual. Once the exposure, contrast, and colour balance if priting colour are fixed for the first image, the rest all print the same.
To title the group shots when required I make up the graphics on a PC, and photocopy it onto overhead projector media, which gets taped to a corner of the esael for white lettering. I have also done reverse masks for black lettering, but that slows you down, for a second exposure to burn in the title is needed.
The digital capture is a real PIA. I find it is as time consuming as conventional. I need to edit the images to use, then edit the file, then in my case, rename the file, and insert a 'digital overmat'.