----- Original Message ----- 
From: "Mark Cassino" Subject: Re: Sensor Cleaning


> Russell Kerstetter wrote:
>>The two spots I am
>> referred to earlier will not break free, despite 20 or so passes.  I
>> was starting to wonder if there was something in or on the ccd itself,
>> under the filter.  But if I hold my light at an angle, the shadow from
>> the specks fall far enough from the speck to indicate that ths specks
>> are actually on the filter.
>
> Sending it to Pentax is probably the best solution. You could try the
> Kinetronics Specgrabber - its a bit of sticky stuff on the end of a long
>  pen like instrument. Tap the spec with it and it should stick to the
> grabber.
>
> I bought one only to realized that it was the rare spec that I could
> actually see...

Something visible that won't shift or come off with cleaning sounds like 
more than a dust mote. I't be thinking its physical damage to the cover 
glass.

William Robb 


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