Sigma APO 300-800mm f/5.6 EX DG HSM £5500, $8000

A real su­per-sized lens, the mighty Sigma 300-800mm gives you max­i­mum reach

NPhoto - - Test Team -

The Sigma 120-300mm and Nikon 200-400mm, which weigh about 3.4kg each and mea­sure 366mm and 291mm re­spec­tively, are two of the heav­i­est and big­gest lenses in this test group, but this lens dwarfs them both. The some­what bonkers build is more than half a me­tre long (544mm) and the lens doesn’t so much ‘tip’ as ‘slam’ the scales at nearly 6kg. Hand­held photography is off the menu, es­pe­cially con­sid­er­ing the lack an op­ti­cal sta­biliser, which would have been use­ful when shoot­ing with a mono­pod.

Thanks to its con­stant-aper­ture de­sign, the lens doesn’t ex­tend at longer zoom set­tings. Fea­tures and build qual­ity feel a bit down­mar­ket com­pared with a cou­ple of the other Sigma lenses on test. There are no weather seals, nor a fo­cus lim­iter switch. That said, the min­i­mum fo­cus dis­tance is a fairly long-range six me­tres any­way, so a fo­cus lim­iter would be rather su­per­flu­ous. Drop-in 46mm fil­ters can be fit­ted at the rear.

Per­for­mance

Not a stand­out per­former, sharp­ness is av­er­age in the 300-700mm sec­tion of the zoom range, but drops off no­tice­ably at 800mm, even at its f/8 sweet spot. Aut­o­fo­cus is a lit­tle slower than with other lenses on test.

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