The Orion-15 28mm f/6 is a wide-angle prime lens of Soviet origin, typically supplied in Leica thread mount (M39) and also found in Kiev/Contax rangefinder fit. Produced from the mid-20th century, it was designed as a compact, modestly priced wide-angle option for rangefinder photographers.

At recent UK auction, hammer prices for the Orion-15 have sat in a narrow band: the two recorded results sold for £100 in August 2024 and £120 in November 2025, giving a median of £110. With only a pair of saleroom results on file heading into 2026, today's going rate for a clean user copy is best read as roughly the £100–£120 wholesale level, and condition, mount variant and the presence of caps or a finder can nudge what the lens is worth at the top of that range.