Flat­ter your lenses

Photo Plus - - Backtobasics -

MANY cam­eras have fea­tures that flat­ter lens per­for­mance. The Lens Aber­ra­tion Cor­rec­tion op­tion in the shoot­ing menu com­pen­sates for pe­riph­eral il­lu­mi­na­tion (vi­gnetting) and chro­matic aber­ra­tion (colour fring­ing). But these are only avail­able on gen­uine Canon lenses, and you may need to down­load data for some lenses us­ing the EOS Util­ity pro­gram. Also, if you shoot in Raw and don’t process the files with Canon’s Dig­i­tal Photo Pro­fes­sional pro­gram, the cor­rec­tions won’t be ap­plied. Up-mar­ket cam­eras of­ten also fea­ture AF fine-tun­ing for in­di­vid­ual lenses. For ex­am­ple, when us­ing a zoom lens on the 70D, you can fine-tune val­ues for ei­ther end of the zoom range.

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