The Leicaflex SL2 is a high-quality, all-mechanical 35mm single-lens reflex (SLR) film camera produced by Leica between 1974 and 1976. It features a mechanically timed, horizontal-moving cloth shutter, an integrated spot meter activated by a thumb switch, and a unique viewfinder display showing aperture and shutter speed. While the camera is large and uses the old R-mount for lenses, its solid all-metal construction and mechanical simplicity are praised by enthusiasts for their durability and timeless design.