The Leitz 500mm f/8 MR-Telyt-R is a manual-focus super-telephoto mirror (catadioptric) lens for the Leica R SLR system, using a folded reflex optical path to keep the barrel compact for a 500mm focal length. It was aimed at wildlife, sports and long-distance subjects where R-series users needed extreme reach without the bulk of a conventional refractive 500mm.

At recent UK auction the MR-Telyt-R has changed hands for between £550 and £750 at the hammer, with a two-sale median of £650 — wholesale saleroom levels, before buyer's and seller's commission and well below typical dealer retail in 2026. With only two recorded results the sample is thin, so condition, completeness of the dedicated hood and case, and clarity of the mirror element drive what any individual example sells for today. Buyers asking what a 500mm MR-Telyt-R is worth should treat this band as an indicative auction value rather than a firm price.