> > From: "Digital Image Studio" <[EMAIL PROTECTED]> > Date: 2006/11/26 Sun PM 10:22:36 GMT > To: "Pentax-Discuss Mail List" <[email protected]> > Subject: Re: K10D - what's that rattle? > > On 27/11/06, mike wilson <[EMAIL PROTECTED]> wrote: > > > I thought SR is based on magnets, with coils interacting with the > > magnetic field to provide sensor movement. That's how it doesn't use > > any power until actually functioning. Does this model have a > > vertical/horizontal sensor? That seems a more obvious candidate for > > unusual noise. > > It's based on electro-magnets which are on the floating plate on which > the sensor is mounted acting against permanent magnets affixed to the > body (front plate of SR assembly). So there is nothing to anchor the > floating plate until the electro-magnetic coils are energized.
Doesn't make total sense. If SR is off, the plate would be free to move. Pentax specifically said that SR uses no power unless in action (not even when activated) so the electromagnets can only be used when SR is working. There must be something locating the plate when SR is off/not functioning. ----------------------------------------- Email sent from www.ntlworld.com Virus-checked using McAfee(R) Software Visit www.ntlworld.com/security for more information -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
