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Scratched sensor


craig stanton

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What did you do Micheal??

How did you resolve it??

 

Hai craig

 

Actually i found every picture got Blue dot after 2 mnths used, suspected dirt inside the sensor thn i used the lens tissue n lens cleaner to clean it... after cleaned i found a mark "diameter like AA size battery" unable to remove since i try so many times..

 

I thinking send to replace the sensor, but it under warranty? or have to pay? I really have no ideal how much it cost. I just bought this m9 few months ago..

 

"sorry for broken english"

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Hai craig

 

Actually i found every picture got Blue dot after 2 mnths used, suspected dirt inside the sensor thn i used the lens tissue n lens cleaner to clean it... after cleaned i found a mark "diameter like AA size battery" unable to remove since i try so many times..

 

I thinking send to replace the sensor, but it under warranty? or have to pay? I really have no ideal how much it cost. I just bought this m9 few months ago..

 

"sorry for broken english"

 

no offence intended but you used a lens tissue to clean the sensor!!!!!!! surely not and if so I'm not surprised at the damage caused

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Hai craig

 

Actually i found every picture got Blue dot after 2 mnths used, suspected dirt inside the sensor thn i used the lens tissue n lens cleaner to clean it... after cleaned i found a mark "diameter like AA size battery" unable to remove since i try so many times..

 

I thinking send to replace the sensor, but it under warranty? or have to pay? I really have no ideal how much it cost. I just bought this m9 few months ago..

 

"sorry for broken english"

 

Probably his broken/poor english, better than my asian!!!!!!

I assume he cleaned it with a swab???

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Michael--

 

Lens fluid and lens tissue are not for cleaning sensors.

 

There are special sensor-cleaning "swabs" and sensor-cleaning fluids, and a lot of threads on the topic on the forum.

 

Only Leica can tell you whether this damage is covered under warranty.

 

BTW, welcome to the forum!

 

 

And good luck on the sensor problem! That looks ugly. :(

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Hmmm... that picture looks as if the antireflection coating on the front surface of the IR blocking filter has been compromised. I would guess it's either been abraded or contaminated.

 

Some "lens cleaning tissues" are impregnated with silicone compounds which can be difficult to remove. Also lens cleaning fluids can contain detergents which leave a greasy residue. Any surface contamination changes the optical path length of the filter's top coating which then loses it's antireflection properties. The contaminated area looks bright against the uncontaminated regions. You notice a similar effect when cleaning a sensor that has oil on it. The first clean can leave bright streaks which you have to remove with further cleanings.

 

Have you tried cleaning the sensor with a proper sensor cleaning swab and Eclipse fluid? or maybe you would be happier allowing Leica to do this. Your picture looks to me very much like surface contamination which should be removeable with a suitable solvent. Here's hoping that's what the problem is and a replacement sensor isn't needed.

 

Bob.

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unable to remove since i try so many times..

 

 

 

Using a lens tissue is like trying to clean the Mona Lisa with a scrubbing brush and a bucket of caustic soda, and tissues leave dust behind, so not a great idea anyway. But hopefully Bob has the answer, its a stubborn stain, maybe silicone, maybe oil and you should try again (let somebody else try) and clean it with the right swabs and fluids for the job. However you may need to try a couple of brands of sensor cleaning fluid before you find the one that works on this. Out of interest, what do photographs come out like with this mark on the sensor, it may give clues?

 

good luck

 

Steve

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Hmmm... that picture looks as if the antireflection coating on the front surface of the IR blocking filter has been compromised. I would guess it's either been abraded or contaminated.

 

Some "lens cleaning tissues" are impregnated with silicone compounds which can be difficult to remove. Also lens cleaning fluids can contain detergents which leave a greasy residue. Any surface contamination changes the optical path length of the filter's top coating which then loses it's antireflection properties. The contaminated area looks bright against the uncontaminated regions. You notice a similar effect when cleaning a sensor that has oil on it. The first clean can leave bright streaks which you have to remove with further cleanings.

 

Have you tried cleaning the sensor with a proper sensor cleaning swab and Eclipse fluid? or maybe you would be happier allowing Leica to do this. Your picture looks to me very much like surface contamination which should be removeable with a suitable solvent. Here's hoping that's what the problem is and a replacement sensor isn't needed.

 

Bob.

 

Hi

 

Try see this picture, sensor either been abraded or contaminated?

 

Thanks

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I doubt that lens tissue could cause this kind of damage. It's obviously important to be careful with the sensor cover glass but it's not made of jelly and the damage shown in the photos above looks more like some kind of stain or partial loss of the anti-reflective coating.

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I doubt that lens tissue could cause this kind of damage. It's obviously important to be careful with the sensor cover glass but it's not made of jelly and the damage shown in the photos above looks more like some kind of stain or partial loss of the anti-reflective coating.

 

 

Hi Wattsy

 

I cleaned the Nikon D2x, D700 sensor before by using same tissue and cleaner, it worked fine..

For this M9, more gentle to do same as previous(due to expensive & new), finally got such result.. For some angle view can see it like partial of antireflection coating had gone, but look strait to the sensor, couldn't see the reflection of partial loss, only look like some kind of stain ( water mark) sticking on it...

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Maybe it's an oil stain? M9's are known to suffer from specks of oil coming off from the shutter assembly. Perhaps the lens cleaner you used wasn't sufficient to remove the oil and it has smeared on the sensor?

 

Just a thought, maybe worth trying a dedicated sensor cleaning kit to see if that removes it? Otherwise you may need a new sensor glass (not sure if it can be replaced or if they just swap the whole unit).

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Guest Overview

This is good info on sensor cleaning: Introduction - Cleaning Digital Cameras - D-SLR Sensor Cleaning.

I have been cleaning my own sensors for years on very expensive equipment and

now the M9 as well.

It must be remembered that dust and unclean tools are ABRASIVE. This causes

scratches.

I use a high power foot-pump blower with the camera pointed downward first.

Then I used Sensor Swabs and Eclipse to wet clean as per above directions.

It takes me 10 minutes.

I would not trust a dealer to clean my sensor if they paid me.

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Hi Wattsy

 

I cleaned the Nikon D2x, D700 sensor before by using same tissue and cleaner, it worked fine..

For this M9, more gentle to do same as previous(due to expensive & new), finally got such result.. For some angle view can see it like partial of antireflection coating had gone, but look strait to the sensor, couldn't see the reflection of partial loss, only look like some kind of stain ( water mark) sticking on it...

 

That kit you have is for cleaning lenses, not sensors. Sounds like you were lucky to get away with it with the Nikon sensors.

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Andybarton:

I'll say! Why don't people research before doing? Lord,a follow-up going

over with 600 grit wet& dry sandpaper might be a good idea too.

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Just my 50 cents to sensor cleaning. I've done it successfully once with a swab on my M8, so last august in Japan I wanted to clean my sensor of the M9, which was really dirty. Tried to find a sensor cleaning set in all those huge Japanese camera stores, without success. Finally got something described for sensor cleaning and made really a mess with. Sensor looked much worse than before. Went in Toyko to Lemon Sha shop in Ginza (probably the best Leica dealer in Japan) and they said to me that they don't sell any sensor cleaning material but I should head over to the Leica Ginza shop to get my M9 cleaned. Was done there withing 2 hours for about 20 USD and the sensor's clean ever since.

 

That experience made me think that there might be a reason that those technology fancy Japanese don't sell sensor cleaning material... and as the sensor didn't get dirty again (shot about 15'000 pics since) I guess that were more those famouse oil spots from the M9 itself, not outside dust.

 

Nik

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