A big reason for the Pentax is the optical viewfinder. We’ve spent quite a bit of time learning the Zone System of exposure and it’s easier on an optical viewfinder. We’ve spent a lot of time on this and hope to use that during weddings for the creative shots. Our instructor has been very patient with us on these more difficult subjects. Still looking at some other cameras. Preferably optical viewfinder.
Zone system is tied to using spot-meter mode
caucasian skin tone in Zone VI, and bride dress within the camera contrast, the rest fall into place, equivalent on Minus 1 developpement can be done when processing raw
its not the same as film but it give you a better grasp of exposure than shooting on P mode and matrix metering,
knowing zone system tell you when and how much to use fill flash
i have been shooting news and wedding, since 1983, using spot-meter (separate from camera until the 1990 Nikon F4 and F5, on slide film
usually you take your reading before the action start and should also be able to judge light level by eye, within a stop.
ps : will the OP show us his portfolio ?