You are right, Shel, seems to work with "m" lenses as well.  I thought I 
  had tried that combination with an "m" lenses prior to posting my 
original message, but I guess not.  Nice to learn something new.

Dave



Shel Belinkoff wrote:
> I believe Jack's mistaken, unless the K10D works very differently than the
> earlier Pentax DSLR bodies, and I don't belive it does in this instance.  I
> just used an M lens and engaged trap focus.  It worked with the program
> dial set to Av, Tv, and M, with autofocus in S mode.
> 
> Shel
> 
> 
> 
>> [Original Message]
>> From: David Weiss 
> 
>> Jack,
>>
>> Thanks, that did it.  Wasn't thinking it needed the "A" contacts to 
>> judge focus, as you can see indicators in the viewfinder with non-A 
>> lenses, but I guess that isn't enough information for it.
>>
>> Dave
>>
>>
>>
>>
>> Jack Davis wrote:
>>> Yes. It only works with "A" series lenses, same as was the case with
>>> the MZ-S. The MZ-S owner's manual included such info under the term,
>>> "snap focus" I believe.
>>> Must have the "A's" capability to communicate the necessary settings to
>>> the body.
>>> As you may know, the AF mode selector must be on the "S" setting.
>>>
>>> Jack
>>> --- David Weiss <[EMAIL PROTECTED]> wrote:
>>>
>>>> Hi all,
>>>>
>>>> Has anyone used trap focus with k10D? I cannot seem  to get it to
>>>> work 
>>>> properly.  Have been trying with m series lenses. Just shoots. 
>>>> Shouldn't there be a custom function that does not allow it to fire 
>>>> unless in focus?  I think there is such a thing on the DS.
>>>>
>>>> I have tried using an m 135f2.5,put switch in AF-c mode, have tried
>>>> in 
>>>> continuous shooting and
>>>>
>>>> Dave
>>>>
>>>>
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> 
> 


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