Sensor dust on the M9


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
;);p:bsmilie::o
 

ur camera should face down during lens changing, so that the shavings or dust will not drop in
 

Mine is Chrome Lens (50Lux, 35cron) and Chrome M9P leh... still will have this as the paint shavings is created when you latch your lens and the lens touches the side walls of the internal chamber. These "shavings" are very small particles that may not be visible unless you use a magnifier to view.

So after a few change of lenses, the shavings will accumulate and if you a blower to blow directly into the chamber, the "dust" will get onto the sensor.


See, if you chrome lens, there wouldnt be such problems
;);p:bsmilie::o
 

Calibration issue?

Mine is Chrome Lens (50Lux, 35cron) and Chrome M9P leh... still will have this as the paint shavings is created when you latch your lens and the lens touches the side walls of the internal chamber. These "shavings" are very small particles that may not be visible unless you use a magnifier to view.

So after a few change of lenses, the shavings will accumulate and if you a blower to blow directly into the chamber, the "dust" will get onto the sensor.
 

Think it takes a bit of courage to try that..... what if the residue get's stuck in between the shutter and shutter cannot close, or if the liquid flows over to the side? M9 sensor is not completely flushed to the side and there's a lobang at the left and right which is not reachable by the usual swaps....

Actually, the VD swaps work very well for M9 and eliminates all the dusts if you know how to swap it.... Can ignore all the blowers, brushes, etc. as all not effective.


For dust issues...

Sensor-Film: Next generation sensor cleaning

I have a friend who swear by this, but not sure if you can ship to Singapore directly. He receive it at Australia.
 

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