On May 16, 2010, at 8:19 PM, P. J. Alling wrote:

> On 5/16/2010 7:49 PM, William Robb wrote:
>> 
>> ----- Original Message ----- From: "frank theriault"
>> Subject: Cleaning Sensors
>> 
>> 
>>> Or more specifically the sensor in my *istD.
>>> 
>>> Is this a do-at-home project or something best left to professionals?
>>> 
>>> If I can do it myself, how?
>>> 
>>> If I take it to a shop, what's a reasonable price?
>>> 
>>> Thanks!
>> 
>> This make people cringe, but I lock the mirror up and shoot the sensor with 
>> canned gas.
>> It seems to work, and I haven't hurt anything yet.
>> I mentioned this on ForumsNeurotica and got soundly thrashed for 
>> recommending a cleaning method that would surely wreck the camera, so I 
>> challenged the good people there to come up with one single instance where 
>> they could verify canned gas wrecking a camera.
>> The closest I got was a guy who met a guy coming out of a camera store who 
>> had apparently done some damage to his camera while cleaning it, but it 
>> wasn't really verifiable that the canned gas was the culprit...
>> 
>> William Robb
>> 
> I do the same thing.  Buy a good quality brand and there's no problems.  I 
> did have a bargain price product that spit liquid propellant, which would 
> probably craze the low pass filter, but I'd never use that on anything 
> sensitive.
> 
I've ruined negatives with cans of gas that spit liquid. I definitely wouldn't 
risk using it on a sensor. Yeah, you can probably get away with it most of the 
time. But why take a chance? There are better tools with which to clean a 
sensor.
Paul

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