On Fri, May 22, 2009 at 8:39 AM, Graydon <[email protected]> wrote: > On Fri, May 22, 2009 at 02:44:04AM -0400, JC OConnell scripsit: >> Im not talking about the current or near future lenses, >> Im talking about the long run. It only makes sense that >> things that can be corrected in the body rather than >> with optics may be cheaper way to go but you would have >> to use new bodies only with those optically uncorrected lenses. > [434 lines, snipped] > > Computationally correcting the optics will be expensive in terms of time > for the camera to perform the processing (several seconds); the lens > reviews will be harsh, so going first on this would be bad for sales; > the ability to correct computationally will depend on *higher* quality > control standards in manufacture, since the information provided on each > lens will have to be very accurate or you're just having the camera > apply funky blur. > > I don't think there's an economic win in there anywhere. Computational > correction makes a lot of sense for those cases where the optical design > can't manage to get things precisely right, either because it's a kit > lens or no one wants a 10 k USD 12mm Ltd. so they didn't make it. > > -- Graydon >
Note both Panasonic and Hasselblad are already doing this. In Panasonic's case, without any noticeable hit to processing speed. Panny's choice to do this comes primarily down to getting the most lens possible in a compact package. They're choosing speed and resolution over distortion correction and fixing the latter in-camera (or at the RAW conversion stage). This is what let them do the 24-60mm-e f2-f2.8 zoom in the LX3 and allowed the G Vario 14-45 OIS for the G1 to be so small and still contain IS. Hasselblad just cheaped out on their 28mm for the H-series. Of course this is one case where their choice allowed a noticably cheaper lens than the competition. The Mamiya 28mm is significantly more expensive, but is also fully corrected and actually covers a 645 frame, the Hassy only covers a sub-645 sensor and only works on the vendor-locked H3D bodies, not the H1, H2 or Fuji GX645 (aka H1) bodies and thus only with Hassy/Imacon backs. -Adam -- M. Adam Maas http://www.mawz.ca Explorations of the City Around Us. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
