I think the camera body knows something about the focal distance in use, especially when using flash...
On Thu, Apr 30, 2009 at 9:11 AM, Graydon <[email protected]> wrote: > On Thu, Apr 30, 2009 at 08:33:19AM -0500, Bob Sullivan scripsit: >> Graydon, >> I've never seen shake reduction focal length before. > > There's a *lot* of stuff in the EXIF that doesn't seem to get looked at, > normally. There's something north of a thousand things that *can* go in > there, though the K20D only seems to use 200 or so. (203 in my DNG > exifs, anyway.) > >> The variation with the DA 35mm macro makes me wonder. >> Is it trying to figure actual length of the lens from focal distance used? > > That would be my guess. > >> Macros can change a lot depending on focal distance. >> This would change the actual length of the lens for shake. > > Yup. > > Which brings up "how can it tell?" > > -- Graydon > > -- > 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. > -- 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.
