I own (and like) the Sony FE 100-400mm f/4.5-5.6, but also have the wonderful 70-200 f/2.8 Mark II, and when I add my 1.4x tele-convertor, I have a 98mm – to 280mm f/4 lens that is faster, small, lighter and sharper than my FE 100-400mm f/4.5-5.6.
Sony has introduced the FE 100-400mm F5.6-8 OSS, a compact super-telephoto zoom designed to make photographing distant subjects more approachable. The new full-frame E-mount lens combines a versatile 100-400mm range with optical stabilisation, fast autofocus and a remarkably low weight of 639g. Its model number is SEL100400.
