Corrosion or dirt

I think you have both -- the big blotches on the lower left corner look like oil spots, but the numerous dots elsewhere could be corrosion. I'd take a photo of a white wall using a small aperture (say f8 or smaller) and then zoom in the image.
 
I will check my M9 too today. Hopefully, if sensor is corroded, Leica will replace sensor quickly.
 
it's about 4 months to replace a sensor Raid. You can put yourself on the wait list, and when your turn comes up, they'll inform you, and you then send your camera in. This way, you won't be separated from your camera for the full 4 months. A fellow RFF member from NJ did it this way.
 
@Fraser: It looks like dirt. Corrosion will have some white around it. My M9 had the dreaded pox, and Leica NJ replaced with the new sensor late last fall. Yes, it took 4 months.
 
JMQ said:
it's about 4 months to replace a sensor Raid. You can put yourself on the wait list, and when your turn comes up, they'll inform you, and you then send your camera in. This way, you won't be separated from your camera for the full 4 months. A fellow RFF member from NJ did it this way.
Click to expand...

This is a good tip. Thanks.
 
Bought my M-E in 2013 and it had to go in for sensor replacement in March last year, not for corrosion but the sensor was cracked.
 
I vote for just dirt.

As the M9 corrosion defect is correlated to exposure to water, try to find a cleaning system or service tech who uses the appropriate cleaning fluids. It may be Leica has a list of approved products.

Or just send it to Leica.

I'm sure the M9 owners here can provide more detailed advice.
 
I did my testing, and the M9 sensor displayed dirt specks when used at aperture 8-11. I used an air blower and also microfiber cloth to wipe away stubborn dirt spots. I will ask them in Wetzlar to take a look at the M9, if they allow it.
 
willie_901 said:
I vote for just dirt.

As the M9 corrosion defect is correlated to exposure to water
Click to expand...

No.
My M-E was never wet cleaned, I live in a dry climate and I keep my gear in humidity controlled storage. And still it corroded after about a year (they replaced the sensor - 4 months wait).
And yes, I bought it new.
 
When changing lenses I recommend to do so only when the camera is turned off.

Information to help:

http://www.visibledust.com/technology.php

When I had my business, I considerd it a waste of time to have to Photoshop stuff like this, especially if it involved quite a few images.

What to do? I bought a 24-70 f2.8 Canon lens that worked for the majority of my photography. I quit changing lenses and my dust gathering issue went away! Made a few other changes that worked for business but, perhaps, wouldn't in other situations.
 
I also have reduced lens changing substantially. I hardly ever change lenses unless it is done at home indoors.
 
Huss said:
No.
My M-E was never wet cleaned, I live in a dry climate and I keep my gear in humidity controlled storage. And still it corroded after about a year (they replaced the sensor - 4 months wait).
And yes, I bought it new.
Click to expand...

The M9 sensor delimitation is caused by a chemical reaction between the IR filter layer and water. The optical coating reacts with water. This is a fact. This fact is part of the IR filter vendor's engineering spec sheet. You may choose not to believe in chemistry or the data published by the people who designed the IR filter. But you are wrong.

Despite the excellent care you took with your M9. It delaminated. This does not mean water did not cause the problem. It does mean all original M9 sensors will delaminate sooner or later.
 
willie_901 said:
It does mean all original M9 sensors will delaminate sooner or later.
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Later we all will die. That's a fact but no one knows how far away "later". It's the same with the original M9 sensor. There are enough sensors out there where "later" will be someday after the natural lifespan of the camera.
 
I emailed leica before starting this thread with the same pics, its being sent to Germany tomorrow for a check as they could not tell just from the pics.
Thats pretty quick customer service much better than I've ever had from Canon!

I still think its just dirt/oil.
 
My Leica M9 sensor was changed about 1 year ago!

My Leica M9 sensor was changed about 1 year ago!

I can tell from the photos that this is dust, not corrosion. A good wet cleanup will do it. Leica changed my sensor for a similar one, not the one that is built against corrosion. The two good news are: My new sensor has not shown signs of corrosion, and that if it does, Leica will replace it.
I cannot lose with Leica. That is why I am staying with Leica.

Check this link please:

http://www.rangefinderforum.com/forums/showthread.php?t=138991
 
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