even wide open at f/1.8, and remains so right though to f/16. By contrast, corner sharpness is comparatively soft. But for a portrait lens where sharpness matters most for subject sharpness in the ...

No other optic offers the same pairing of prime telephoto reach and a fast f/1.8 maximum aperture. It’s a recipe that promises sharp stills with beautiful background blur, giving it appeal for sports, ...

Portrait photographers would naturally benefit, too. The lens promises to isolate subjects sharply against wonderfully defocused backgrounds. The Sigma 200mm f/1.8 would deliver the shallowest ...