Olympus M.Zuiko Digital ED 150-400mm f/4.5 TC1.25X IS PRO Review

The Olympus M.Zuiko Digital ED 150-400mm f/4.5 TC1.25X IS PRO is a super-telephoto zoom lens designed for Micro Four Thirds cameras, offering an effective 300-800mm equivalent focal length on the smaller sensor format. The built-in 1.25x teleconverter extends reach to 500mm (1000mm equivalent), making it a specialized tool for wildlife, sports, and bird photography where extreme magnification is essential. The constant f/4.5 aperture and professional-grade IS stabilization are hallmarks of Olympus's PRO line, positioning this as a flagship optic for the system.

At an MSRP of $113.25, this appears to be an anomalously low price point for what should be a professional super-telephoto zoom. Lenses of this class typically command prices well into the thousands, so this figure may reflect a data error, a regional pricing variation, or a used/refurbished listing. For context, this is Olympus's most ambitious telephoto lens for Micro Four Thirds, aimed squarely at professionals and serious enthusiasts who need compact, long-reach glass without the bulk of full-frame equivalents.