Mamiya 645 Pro TL

In 1997 a wedding shooter buying into 645 had two real choices, and they pulled in opposite directions. The Pentax 645N gave you autofocus, a fixed prism, and a control layout cribbed straight from a 35mm SLR. The Mamiya 645 Pro TL gave you none of that and let you rebuild the camera instead. Pop the prism off, drop a waist-level finder on, swap the film back mid-roll from color to black and white, change the grip. The Pentax was the camera you learned in an afternoon. The Mamiya was the camera you configured for the job in front of you, and that is still the argument people have about the two.

The "TL" is the only thing the name spells out, and it just means TTL flash metering through the Metz SCA system. Otherwise this is the 645 Pro with one more trick. The shutter is focal-plane, runs from a full 8 seconds up to about 1/1000, and flash syncs at 1/60, which is the one number that stings if you shoot daylight fill. It has mirror lock-up, a self-timer, and a satisfying mechanical thunk that is nowhere near as violent as a Pentax 67 but lets you know a piece of glass just moved.

The body itself has no meter. Metering lives in whatever finder you bolt on top. The AE prism gives you aperture priority and switches between center-weighted averaging and a spot pattern, and it reads through the lens off a fast electronic cell, so it is a decent meter for what it is. But the averaging mode gets fooled by a bright sky or a backlit subject the same way every averaging meter does. The plain prism and the waist-level finder have no electronics at all. That modularity is the whole personality of the camera. It is also where the honest weakness hides: with the meterless finders, or an AE prism whose meter cell has finally given out, you are flying blind, and the finder swap that makes the system great also means there is one more thing to lose or break.

For a tricky scene, the move is to read it yourself rather than trust the prism. Pull out the Zone Light Meter app, take a spot reading off the shadow you care about, and place it on the zone you want, then set aperture and shutter on the body to match. The averaging meter wants to make everything middle gray. You do not.

People shoot these for studio portraits and weddings, and they still buy them because the system is cheap and deep. The 80mm f/1.9 is one of the fastest normals in medium format and the reason a lot of photographers picked Mamiya over Pentax in the first place. From a 35mm wide-angle out to 500mm of telephoto, all of it affordable on the used market, all of it precise. The bodies are reliable in a way the early autofocus Pentax gear is not. If you want a camera that does the thinking for you, buy the 645N. If you want a 6x4.5 system you can shape around your own way of working and not worry about, this is it.