Oil spatters on a 50D sensor?

[toonamp]

I seem to remember a while ago hearing of oil spatters on a 1DMKIII sensor from the mirror box being over lubricated at manufacture.

http://cpn.canon-europe.com/content/news/EOS_oil_spots.do

Please ignore the photo subject, I don't often take BIFs, so rarely see an uncluttered light BG. I noticed when I looked at these photographs, the darker one had loads of spots on it. It was'nt as noticeable on the bluer one.

Is this the same thing as happened with the 1DMKII and has any one else experienced this with the 50D?

It does'nt look the same as those in the link, what else could it be. Up untill now all I've ever done is use a rocket blower on the sensor. and that's kept perfectly clean.


Following Marcels sensor cleaning tutoral, rather that Chrises (Cobra) I managed to clean it. Here's a piccy of the same bit of sky minus the birds taken today after cleaning.

I'll check it daily to see if the problem re-occures, but should I be worried?

 

[Chaz Photos]

let see a tight crop on one like in the link hard to say if its is or just dust bunnies

 

[LongLensPhotography]

No it is just normal dust. It happens quite frequently, particularly after lens changes.

Clean it with rocket blower, and if that doesn't help get LensPen Sensorklear or sensor swabs.

 

[scraggs]

Or you get a free sensor clean from canon or one of its service centres if it's under a year old.

 

[toonamp]

let see a tight crop on one like in the link hard to say if its is or just dust bunnies

Here's the close up of a couple.

No it is just normal dust. It happens quite frequently, particularly after lens changes.

Clean it with rocket blower, and if that doesn't help get LensPen Sensorklear or sensor swabs.

Or you get a free sensor clean from canon or one of its service centres if it's under a year old.

I've had loads of dust bunnies and never had so many, and never all uniformly round as in the first photograph, hence me thinking some kind of splatter.


As the last photograph hopefully shows in the original post, I have allready cleaned the sensor as described.

 

[Chaz Photos]

well the tight crop is not like your link so Dust Bunnies I will say

 

[toonamp]

I've had numerous occasions to use the rocket blower on dust bunnies, and each time that worked, I can't remember any beeing as uniform as these were.

I tried the rocket blower on these, and it did'nt move a single one. It was only after using Marcels method of a scraper with a lens cloth wrapped around it, directly on the sensor that I managed to clean it as in the third picture in the original post.

 

[poppy6]

Its possible that it has been some lubrication from the factory. Hopefully now that you've cleaned it, it will be fine from now.

 

[RobertP]

Your 2 shots showing the problem are at f10 and f13. Your 'after' blank shot is only f6.3 so may not show the problem. Take a test shot of a plain wall at f22 then do auto levels on it for a severe test. You may need to use manual focus as the wall is plain.

 

[toonamp]

Thanks. I'll try that.


Edit:- Just tried it, and it's still very dirty, they are splashes, and look much more like those in the link.

 

[poppy6]

Thanks. I'll try that.


Edit:- Just tried it, and it's still very dirty, they are splashes, and look much more like those in the link.

:thumbsdown: is it a new camera? can you take it back and get it swapped.