Dirty Sensor ?

here's what i took today..

P mode @ F/22

Looks like lubricant goobers. I'm not sure though. I am making the assumption because it is a relatively new camera that has never been cleaned before. Right? You need a wet cleaning to get rid of them.

Looks fine to me, j/k

You got dust.. It happens. Search around for cleaning sensors. However, yours is really not all that bad. I assume you used the "Auto Levels" function to highlight them.

yes. but thanks

try the blower first, sometimes that works unless you are me

lol.. well. 35$ for a blower is expensive. But.. ill see what i can do. the xti's been off for 2 month until today. dont take it much..nothing to photography

I'll bet $5 against a clean lens tissue that a blower will not clean your sensor. As I stated above, I believe it is excess lubricant that is thrown from the mechanicals on new cameras.

Ever oil the chain on a bicycle and get oil on your pants legs on the first ride? Same thing.

You need the blower to remove any dust that might be there to minimize the risk of scratching your sensor during a wet cleaning though. If you are not using the camera much, it would be easier to get the sensor cleaned by Canon under warranty.

If it's a new camera, I'd take it to Canon, and let the experts clean it (that's what I do).

Or, as a reformed dust obsesssor myself, stop taking pics of the sky and obsessing about dust spots that you can't really see without using Auto-levels (ie, I'm trying to not care anymore about imagined or non-imagined dust spots, since they can really only be seen on blue backgrounds like the sky and are easily fixed in CS2 with the Clone or Heal tool. Nothing is ever 100% perfect. I wish there was a 12-step program ...).

DDan wrote in post #3986579
I'll bet $5 against a clean lens tissue that a blower will not clean your sensor. As I stated above, I believe it is excess lubricant that is thrown from the mechanicals on new cameras.

Ever oil the chain on a bicycle and get oil on your pants legs on the first ride? Same thing.

You need the blower to remove any dust that might be there to minimize the risk of scratching your sensor during a wet cleaning though. If you are not using the camera much, it would be easier to get the sensor cleaned by Canon under warranty.

Finally - someone that is saying the same thing I've been saying all along.

Dust be damned - some of this stuff sticks like you-know-what-to-a-blanket.

Of course the moving parts (mirror, shutter mechanisms) are lubricated. How long will a car engine run after you pull the oil pan drain plug?

I agree about the blower idea though - get as much loose stuff off as you can.

Some reading to put you to sleep:

http://www.dmcphoto.co​m/Articles/SensorBrush​es/

http://www.bobatkins.c​om …utorials/sensor​clean.html

http://www.cleaningdig​italcameras.com/index.​html

http://www.tribcsp.com​/~sigma2/SensorDust01.​html

http://www.copperhilli​mages.com/index.php?pr​=Tutorials

Cr4zYH3aD wrote in post #3986544
lol.. well. 35$ for a blower is expensive. But.. ill see what i can do. the xti's been off for 2 month until today. dont take it much..nothing to photography

http://cgi.ebay.com …ZWDVWQQrdZ1QQcm​dZViewItem

ed rader

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http://www.henrys.com …goryId=10448&it​emID=98951

the local store ask too much then !

Glenn NK wrote in post #3986976
Finally - someone that is saying the same thing I've been saying all along.

Dust be damned - some of this stuff sticks like you-know-what-to-a-blanket.

Of course the moving parts (mirror, shutter mechanisms) are lubricated. How long will a car engine run after you pull the oil pan drain plug?

I agree about the blower idea though - get as much loose stuff off as you can.

Unless your camera has an oil sump akin to an internal combustion engine, I would say that oil is highly unlikely. This is just ordinary dust that accumulates on all things photographic related. What minuscule amount of lubricant is used on moving parts in the camera isn't going to be slinging off onto all of the internal surfaces. There are not gobs of grease on all internal moving parts, but just just microscopically thin layers on a few moving parts. Besides, if it were oil, shouldn't you expect identifiable pattern characteristics if the contamination were oil from moving parts since this would be related to repetitive motion from parts that are in a fixed mechanical relationship to the sensor? Most of the internal mechanism is not lubricated at all -- remember that oil acts as a viscous damper and that is not something that would be desirable when you need very high speed shutter and mirror accelerations.

I have had good success in just using a rubber squeeze blower to get most of the dust off the sensor. Beyond that, I use E2 Eclipse fluid and #2 Sensor Swipes to take care of the more problematic stuff which is normally organic in nature. Organic contaminants should not be allowed to sit on the sensor for too long as they will tend to "glue" themselves in place because of the free and/or bound water that they contain.

bill boehme wrote in post #3987856
Unless your camera has an oil sump akin to an internal combustion engine, I would say that oil is highly unlikely. This is just ordinary dust that accumulates on all things photographic related. What minuscule amount of lubricant is used on moving parts in the camera isn't going to be slinging off onto all of the internal surfaces. There are not gobs of grease on all internal moving parts, but just just microscopically thin layers on a few moving parts.

On what do you base this opinion? I am open to ideas that are counter to what I have observed.