This empirical field test of a fairly well-preserved CZJ Triotar 85/4 lens confirms its well-known performance. At F4, central sharpness is moderate yet usable, with a lack of microcontrast. By contrast, the corners are softer. Flare resistance is suboptimal by modern standards, while colour rendition is accurate enough, although robust tweaks are needed in post-production. This photo of the Leica store display in Via dei Due Macelli, Rome, is a flare torture test. The bright, emissive Leica sign against a dark background, plus additional reflections and obstructions, creates a challenging scenario. The outcome is that the blacks lift and deep separation is lost. Ghosting appears near the top, as well as…