Originally posted by GeneV It is not a huge deal, but I notice that my K5 and K-x (both of which have Sony CMOS sensors) need the use of the Rocket Blower about 3 times as often as the K10d or K20d ever did. I wonder if anyone else has noticed this?
This last long weekend trip, I grew quite a forest of dreck on my K-x sensor after a half-dozen lens changes. I think I've had to clean the K20d (other than the internal function) about 3 times since I've owned it.
A couple of blower cleanings followed by checks usually solves it, and liquids have been required only once, so it is not a big difficulty.
I found my k-r was really bad for dust, pretty much anytime I changed a lens it was at risk, but on the K-5 frankly other than maybe a spec in the viewfinder I havent seen any at all on any photos over a year (I have been checking periodically for it) and I change lenses quite frequently. Do you change lenses with the lens mount pointing to the ground? This can help avoid dust. I am not sure that any sensor vs another attracts more dust (plus arent all sensors for DSLR CMOS now?), likely the other mechanisms/seals of the camera, how/when/where lenses are changed and the effectiveness of the dust removal system.
I saw a canon guy once changing lenses on the beach, standing up on a rock next to the sea in the sandy wind with the lens mount facing open to the wind, he took his time too, cant image the quanitity of sand he must have had inside his camera and lenses. Looked like 5d + L glass too haha