has anyone ever tried blocking the SDM contacts? I doubt that would
work though =(
Ecke

2010/11/26 John Francis <jo...@panix.com>:
>
> There's no way to do that, AFAIK.  If your body supports SDM,
> and the chip in the lens says this lens has SDM, then that's
> how the body will attempt to focus the lens.
>
> On Fri, Nov 26, 2010 at 04:20:00PM +0000, drd1...@gmail.com wrote:
>> OK, but I assume you can force it back to the screw drive.
>> -----Original Message-----
>> From: eckinator <eckina...@gmail.com>
>> Sender: pdml-boun...@pdml.net
>> Date: Fri, 26 Nov 2010 16:51:15
>> To: Pentax-Discuss Mail List<pdml@pdml.net>
>> Reply-To: Pentax-Discuss Mail List <pdml@pdml.net>
>> Subject: Re: HSM -- Restart?
>>
>> the 16-50 has screw drive alright but when SDM dies it won't default
>> back to screw drive on a body that supports SDM.
>>
>> pentax says they're aware that people are complaining but defect
>> ratios do not differ significantly from other product lines. assuming
>> that is true it doesn't make things better for those affected but
>> speaks volume about the i'net as a negative multiplier
>>
>> cheers
>> ecke
>>
>> 2010/11/26  <drd1...@gmail.com>:
>> > I have to admit this is not encouraging me to invest in a new Pentax zoom. 
>> > That's a. Lot of $$$ for a lens that can just stop AFing. IIRC it has no 
>> > screw drive, correct?
>> > -----Original Message-----
>> > From: P N Stenquist <pnstenqu...@comcast.net>
>> > Sender: pdml-boun...@pdml.net
>> > Date: Fri, 26 Nov 2010 10:38:03
>> > To: Pentax-Discuss Mail List<pdml@pdml.net>
>> > Reply-To: Pentax-Discuss Mail List <pdml@pdml.net>
>> > Subject: Re: HSM ?-- Restart?
>> >
>> > HI Morris,
>> > Make sure your manual/automatic switch isn't set wrong or in between the 
>> > marks. If that's not it, focus manually a few times and see if the HSM 
>> > comes back.
>> > Paul
>> >
>> > On Nov 26, 2010, at 9:55 AM, Morris Galloway wrote:
>> >
>> >> Is there a 'kink' or 'trick' to getting the HSM to work again once it has 
>> >> failed... other than a trip to C.R.I.S.?
>> >>
>> >> The Patient is a 16-50 DA*.
>> >>
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