Overview

The Orion-15 28mm f/6 is a compact, affordable (under $200) Soviet-era rangefinder lens that typically requires cleaning and re-lubrication of its focusing helicoids, which is relatively easy. Optically, it offers sharpness in the center even without shimming, but corners remain soft even at f/16; it has vignetting and distortion. However, one user reports 'crazy sharpness' and a distortion-free profile at f/11, with flat colors ideal for architecture (DPReview comment). Handling is tricky due to its small size causing fingers to intrude into the frame; a conical hood helps. It suits users willing to perform maintenance and who value its unique rendering for walkaround or architectural photography.