Minolta Rokkor 40mm f/1.7 (Hi-Matic 7sII)

How good this lens gets stopped down is the surprise. Like most fast normals from the late 1970s it goes a little soft and dreamy wide open at f/1.7, but this six-element Rokkor tightens up fast, sharpening nicely by f/4 and biting corner to corner by f/8. The rendering is classic Minolta of the era: neutral to slightly warm, moderate contrast that does not crush shadows, and a smooth tonal handoff that flatters skin. Out of focus areas are calm rather than swirly, which is what you want from a 40mm that people use as a walk-around lens, not a portrait specialist.

The 7sII was Minolta's compact rangefinder answer to the Olympus 35 RD and the Canonet QL17 GIII, and the three of them get cross-shopped to this day. All run a fast normal behind a leaf shutter in a body you can pocket. The Minolta is the smallest of the bunch and trades blows with both on image quality. The 40mm focal length is the giveaway that Minolta optimized this for a normal-ish field of view that sits between a 35 and a 50, slightly wide, easy to compose with both eyes open.

Flare is the honest weakness. The coating is good for 1977 but not multicoated to modern standards, so a bright source just outside the frame can throw a veil across the shadows and wash the contrast. Shoot it backlit and you will see it. A simple shade fixes most of it, and the 49mm filter thread takes a screw-in hood without drama. That same thread is where you mount ND or a polarizer if you want to open up in daylight, and the app's filter compensation handles the stop loss.

The leaf shutter is the real reason photographers chase these. It syncs flash at every speed up to the 1/500 top, which is the trick a focal-plane SLR cannot do, so fill flash in bright sun is trivial. The flip side is that the shutter lives in the lens, so what you see is what you get, no swapping glass. The 7sII meters through a cell on the lens face and runs in shutter-priority auto or full manual. Note the slow end, though: the timed speeds bottom out at 1/8 second, so in a dim bar or a streetlit alley you are working right at that floor. Set Zone Light Meter to read the scene at f/1.7 and let it place your shadows, then if the meter calls for longer than 1/8 you switch to Bulb and time it by hand.

Today these sell for less than a clean QL17 and far less than any interchangeable-lens rangefinder, which is exactly why they keep getting bought. You get genuinely excellent glass, a flash-sync shutter, and a body that disappears in a jacket pocket. The trade is that when the meter or the shutter eventually dies, repair parts are thin, and a stuck shutter is the common failure. Find a working one and it is one of the best dollar-per-image-quality cameras of the rangefinder era.