Bill, I've heard this talk before, but you must be careful. I bought some canned cleaner stuff at Fry's Electronics. It was called Air Duster (by Memorex, I think) and I was cautious.
It said, "Excellent for Cleaning: Computers, Office Equipment Photo/Video Equipment and Electronics" I tested on a surface and found residue was left behind. I read further under Caution:... Chemical contact with flames or very hot surfaces can cause vapor decomposition and toxic gases. This product is not defined as flammable by 1500.3 (c)... However, this product can be ignited under certain circumstances. Do not use near potential ignition sources, hot surfaces, or spark-producing equipment. So the next time I had the outdoor gas barbecue grill fired up, I gave it a test. I figured I might blow away some of the accumulated crud. Wow, I got a huge fireball covering half the grill. So much for 'not defined as flammable'. So you might use caution using 'dust off' on your camera gear. Test it first! Regards, Bob S. On Wed, Oct 10, 2012 at 2:46 PM, William Robb <[email protected]> wrote: > On 10/10/2012 1:05 PM, Tom C wrote: >>> >>> People make mad cat sounds when I say this, but my first cleaning method >>> is still canned gas. I've polled a couple of other websites and have >>> come up with absolutely no verifiable evidence that anyone has ever >>> damaged a camera using Dust Off. >>> I always do a "practice squirt" away from the camera to ensure that no >>> propellant is going to come out. >>> After that, if I still have dust, I go to the wet cleaners, which I have >>> had to do exactly 3 times now since I bought my first DLSR in 2003. >>> >>> William Robb >> >> >> MEOOOOWWWW! >> >> That's exactly what I do. I spray for about 2 seconds on the back of >> my hand just in case (and to check if there's any kind of residue). >> There never was but once and continuing to spray then showed none. I >> then spray the compressed air over the sensor. >> >> I've never cleaned the sensor(s) any other way in the past 10 years >> and have never seen any discoloration or any other kind of sensor >> damage. >> >> I think it's far riskier to touch the sensor with a solid object, and >> what if I notice a film or residue from a liquid? Then I'd definitely >> have to rub. >> > > One day at the studio, I did a little experiment. I took an old UV filter, > drew a small circle in it with a felt pen and measured it's transmission > properties within that circle on our densitometer . I then emptied an ENTIRE > can of Dust-Off at the circled paert of the filter, and them measured it > again. There were no differences at all in the two readings. > > -- > > William Robb > > -- > PDML Pentax-Discuss Mail List > [email protected] > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and > follow the directions. -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
