Forget Dpreview's B.S., "diplomatic language" NEX 16mm lens is not good
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From: Bruce on 8 Jun 2010 06:54 On Mon, 7 Jun 2010 17:48:08 -0700 (PDT), RichA <rander3127(a)gmail.com> wrote: >On Jun 7, 1:54�pm, Bruce <docnews2...(a)gmail.com> wrote: >> On Mon, 7 Jun 2010 09:50:47 -0700 (PDT), RichA <rander3...(a)gmail.com> >> wrote: >> >> >http://dpreview.com/reviews/SonyNex5Nex3/page8.asp >> >> >The kit lens however seems reasonably good, or about as good as one >> >can expect for an 18-55mm kit lens. >> >> >http://dpreview.com/reviews/SonyNex5Nex3/page7.asp >> >> You obviously didn't read the comments about distortion. � >> >> "Distortion is unusually high. At wideangle we measure 2.6% barrel >> distortion, which is complex in character with strong re-correction >> towards the corners (making it relatively difficult to correct in >> software when required). At longer focal lengths the distortion >> changes to the pincushion type, and reaches a whopping 2.4% at 35mm, >> which sets a new record for the strongest distortion of this type >> we've yet measured." >> >> Wavy line (or "moustache") distortion at the wide and? �That's very >> bad news. �2.4% pincushion distortion at 35mm? �Only cheap and nasty >> Cosina wide angle zooms approach this level of distortion. �There is >> really no excuse for it. >> >> A camera is only as good as its lens(es). �NEX will not be worth >> buying unless Sony offers better glass. �*Much* better glass. > >Distortion should be the LAST thing on anyone's mind. On the contrary, moustache distortion, especially of this degree of severity, is something that should cause you to run a mile. Unlike pure rectilinear distortion, it is not something that is easily corrected in post-processing. >The real problem is terrible resolution and omnipresent CA. The resolution and CA of the 18-55mm lens are both in the expected range for a cheap kit lens. The distortion is not. |