Imaging recource: A deep look at the tech behind the Olympus 150-400mm super-tele zoom (Engineer interview!)

The Olympus M.Zuiko 150-400mm F4.5 TC1.25X IS PRO (that's a mouthful!) has been one of the most-anticipated lenses in recent years, offering an equivalent focal length range of 300-1,000mm in a single optic, thanks to its built-in 1.25x teleconverter. Its constant-aperture design delivers a maximum aperture of f/5.6 at the full 1,000mm equivalent, making it a surprisingly fast lens despite its super-tele reach. Even more remarkable is that it weighs only 1,875 grams (4.13 lbs) without its caps or hood. Add in an IS rating as...
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