Leica I (C)

{"overview":"The Leitz I (C), commonly catalogued as the Leica I Model C, is a 35mm viewfinder camera introduced by Ernst Leitz in 1930. It was the first Leica to offer an interchangeable lens mount, using a 39mm screw thread that later became known as Leica Thread Mount (L39). What an I (C) is worth in 2026 hinges heavily on originality, finish and which of the documented variants it belongs to.","buying_guide":"Inspect the cloth shutter curtains for pinholes, verify that slow speeds fire cleanly, and confirm the engravings on the body and lens match — on non-standard-mount examples the lens was fitted to that specific body and swapping reduces value. Some surviving cameras have been upgraded over the decades to later specifications, and originality versus later modification is the single biggest price driver alongside variant (Luxus, Hektor-fitted, Summar-fitted, Compur Elmar, Calfskin, Cut-Away).

Generated summary, 21 Apr 2026 — not checked by hand; prices on this page come from the sales, not from this text.