Royale With Cheese
Senior Member
Forgot to mentioned that I was given some good advice on the dust management by Andrew of Leica Service Centre.
The "dust" particles that we are worried about when we changed lenses outdoor was not the major concern. The black dots that are commonly found on the CCD sensor is actually the micro paint shavings that drop off in very small pieces whenever we mount and unmount the lenses, especially if you are the kan cheong person that need to change lens with one hand in split seconds and thus more friction caused when mounting and mounting, and thus creating more paint drops.
If you are not aware of the small paint particles and didn't clear them first before you open the shutter to check the sensor, worse still if you use your super power Rocket Blower to blow it, the paint particles will then fly into the sensor chamber (now completely unblocked with the shutter wide opened), creating more black dots after blowing. That's why some of the comments was to have more dust if you use a blower.
I have tried rocket blower, zeeion blower with anti-static properties, and another 2 recommended brands. Rocket blower is the best for most dust at outside the lenses, but still cannot blow out the black dots. Only liquid cleaner could do the job, but if you do this frequently, you may cause premature wear-and-tear to the coating on the sensor.
Best advice is to be careful when changing lenses, not just careful about changing lenses indoor and camera facing down, but also ensure that you minimise friction to the walls inside the chamber.
Having a lot of fun with my M9P recently, not just in taking very nice photos, but learnt how to "tune" and calibrate the body in a non-professional way, and now to clean the sensor!
Getting more and more enjoyable with my M9P now... perhaps I should not be posting in this "Almost Giving Up on the M9" thread!
See, if you chrome lens, there wouldnt be such problems

