The af­ford­able op­tion

Tam­ron SP 24-70mm f/2.8 Di VC USD £680, $1300 www.tam­

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A sump­tu­ous FX-for­mat stan­dard zoom, the Tam­ron ticks all the right boxes on most pho­tog­ra­phers’ wish lists, and is also ex­cep­tional value for money, es­pe­cially in the UK. It has a fast and con­stant f/2.8 aper­ture through­out its zoom range, which stretches from gen­er­ously wide-an­gle to short tele­photo. This en­ables a tight depth of field, es­pe­cially at longer zoom set­tings, and the creamy ‘bokeh’ (the qual­ity of the de­fo­cused ar­eas) is main­tained even when stop­ping down a lit­tle, thanks to a well-rounded, nine-blade di­aphragm.

High-grade glass in­cludes three LD (Low Dis­per­sion) el­e­ments and two XR (eX­tra Re­frac­tive in­dex) el­e­ments, to boost sharp­ness and con­trast, both of which are im­pres­sive through­out the zoom and aper­ture ranges. It’s also Tam­ron’s first lens to in­clude weather seals. An even big­ger bonus, miss­ing in the much pricier Nikon AF-S 24-70mm f/2.8G ED, is that the Tam­ron fea­tures op­ti­cal sta­bil­i­sa­tion (though there is now a VR version of the Nikon – see above right). It’s even worth con­sid­er­ing the Tam­ron for a walk­a­bout lens on a DX body. The 1.5x crop fac­tor will give it an ef­fec­tive zoom range of 36-105mm, so you lose out at the wide-an­gle end, but you gain reach at the other. And, of course, if you sub­se­quently up­grade to an FX body, you can keep us­ing the same lens.

It has a fas t an d cons tan t f/2.8 ap er­ture through­out its zoom rang e, which stretches from wide-ang le to tele­photo. This ena bles a tig ht depth of field, esp ecia lly at longer zoom set­tings , an d the creamy ‘bokeh’ is main tain ed even when stop­ping down

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