Scratch on shutter blade?

[jowatt]

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I apologize for making 2 threads in succession but I noticed another thing about my used camera.

On the brightest shutter blade in the middle I noticed something that looks like a scratch that is only visible from a certain angle if light shines on it.

My question is if anyone has any idea how something like this could happen? Have you seen something like this before? I haven't noticed anything wrong with the shutter (so far). Wouldn't any contact that would leave a mark on the shutter damage it? Could this be oil? If the shutter is working do I still need to worry?

Thanks in advance

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[Good To Be Retired]

2 hours ago, jowatt said:

 

On the brightest shutter blade in the middle I noticed something that looks like a scratch that is only visible from a certain angle if light shines on it.

Very good eyes.  I would probably never have found it.

My question is if anyone has any idea how something like this could happen?

A bit of grit on a shutter blade perhaps?  A rough spot on the blade?  Possibly a smear of some lubricant?  

Have you seen something like this before?

Nope.

Wouldn't any contact that would leave a mark on the shutter damage it?

Looks to me like a very slight mark on the blade, like a mark in the coating, which in and of itself probably doesn't amount to anything.  

Could this be oil?

Possibly.

If the shutter is working do I still need to worry?  I would suggest not if it's working properly, and I'm pretty paranoid.  Perhaps something to monitor closely?

 

Quote

Thanks in advance

 

 

Edited July 12, 2020 by Good To Be Retired

[jaapv]

It appears to me to be completely irrelevant. I wouldn't worry about it.

[jdlaing]

A small insignificant mark. Nothing to worry about. 
You will make yourself crazy worrying about such things. Use the camera.

Edited July 12, 2020 by jdlaing

[250swb]

It's probably just a slight smear of oil and given the M240 shutter can throw oil onto the sensor anyway (but not nearly as badly as the M9) it's par for the course. So nothing to worry about.