Quote:
Originally Posted by sean_buerger
"...You forgot another rule: Only change the lens while the camera is off to prevent an electrostatic charge to build on the sensor which will attract dust..."
Electrostatic charges wouldn't be bothered, whether the camera is on or off, as long as you don't point an ionizer fan into the camera. Also I can't see how an electrostatically charged sensor behind a metal shutter would make any difference to the dust coming into the mirror box during lens change.
To me your rule is boulderdash! Cheers, Sean.
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"boulderdash and cheers" nice...keep leaving your camera on while changing your lens, genius...you will learn soon enough. BTW, it is not *MY* rule, read and weep:
Canon EOS Digital Rebel XT/EOS 350D - Google Book Search
Ophrys Photography - Hints and tips 3 - keeping digital sensors clean - filters
"The first thing that you can do to
prevent the
dust problem is to
turn the
camera off when changing lenses. This switches the charge
off from the sensor and theoretically will decrease the amount of
dust attracted to it."
Here's one from Canon Europe:
Prevention is better than cure
You cannot stop dust getting into your digital camera, but you can reduce the risk a little using one or more of these simple procedures.
Switch the camera off before changing the lens. This reduces the static charge on the sensor and stops it attracting dust.
Never leave the camera with the lens mount open. When you remove a lens, replace it immediately with another or attach the camera body cap.
Avoid changing lenses in dusty situations. If you have to change a lens in these conditions, hold the camera with the lens mount facing down to reduce the risk of dust falling into the opening.
Keep the body cap free from dust. Did you know that the body cap and lens cap attach to each other? This will keep the inside of both caps clean when a lens is on the camera.
Canon Professional Network - Sensor Cleaning
I suppose there all boulderdash, huh, genius?