The Pentax LX is a 35mm SLR introduced by Asahi Optical in 1980 as the company's professional system camera, with interchangeable viewfinders and focusing screens and a weather-sealed body. It sat at the top of the Pentax K-mount range when new and was aimed at working photographers.

With only one tracked UK auction hammer result on file — £188 in late 2023 — the LX's value at saleroom level today is best treated as indicative rather than a settled market, and clean working examples with the standard FA-1 finder typically sell for more than well-used bodies. As of 2026 the LX remains condition-sensitive at auction, and what a given camera is worth depends heavily on shutter behaviour, finder condition and whether original accessories are included.