----- Original Message ----- 
From: "Paul Stenquist"
Subject: Re: Dust Alert Question


> No. It works whether there is dust or not. However, it's kind of
> fussy about the background you focus against. It has to be neutral
> and uniform.

I think you misunderstand. I can't get that far because the function is almost 
always greyed out 
in the menu, and I can't access the function.
It has been accessible twice, once when I was checking the camera over just 
after I bought it, 
and then once again a couple of days ago.

William Robb



> Paul
> On May 17, 2008, at 4:29 PM, William Robb wrote:
>
>> Hi, I've been playing with the dust alert function on my K20, and
>> have a question that hopefully
>> someone here can answer.
>> I am following the instructions in the manual regarding lens type,
>> etc, but can rarely activate
>> the dust alert.
>> Usually it is greyed out and unavailable.
>> Does it only become available if there is dust on the sensor?



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