Mainly with Sky back gounds of blue there are dark spots appearing on the picture which are not due to marks on the lens. On Lighter sky photographs they are not as noticable or disappear. Change the lens and the spots are in the same places with both lenses .How do you clean a Konica Minolta Dynax 7D Camera?

Sky rage, also called Air rage, is the general term for disruptive and violent behavior perpetrated by passengers and flight crews during flight time.

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Are you talking about spots you see on the pictures? Are these spots you see in the same place on all the pictures? If you really want to see if your sensor is dirty pick a clear day with a great blue sky focus to infinity and then shift the lens to manual focus and the program to "P" take a pitch of the blue sky. Then down load this picture to the computer and open it up to 100% and look it over if there are spots then the sensor should be cleaned. Even if you take the lens off and look into the camera body you still can't see the sensor all you are looking at is the mirror inside the prism box.
To clean the sensor you need to put the camera into "clean" mode which locks the mirror up. It may be possible you just have a dirty lens or UV filter.

Yellow spot is mainly due to lense stain , so clean your lense from inside. it will solve your problem.

I think it helps. let me know.

It is the capacitors in power supply, samsung have fitted underrated capacitors in some of their models.

Sounds like the optical engine is bad.It is a very common problem and for a while Sony covered the repair with a warranty extension.If you call customer support they may cover it.

The main reason for such things is a dusty sensor. Mostly the sensor dust comes out on sky areas just like you said and especially when useing a small or a medium aparture usually starting from f5,6.

I would recommend you to do a test photo. All you have to do is make a picture of a white thing e.g. paper with an aparture f8 or more. Then you can see all the dust spots on the sensor. If there are not many of them then you can just use photoshop to remove them from every picture, b ut I would recommend you do take your camera to the nearest service and let them clean the sensor or you can buy a sensor cleaning kit e.g. Visible Dust and clean it yourself.

TV shows large red spot in middle of tv when dark show are on, you can see it more.  Now blue spots on upper right side too.  Spend way to much on this tv to have these kinds of problems only after 3 yrs.

Dave,,yes the tv is worth fixing the ic part you need is STK 392-010 and at this site i will give the link to they are 19.99 each you will need 2 if you get them at the link I posted you will also get free online tech support plus installation instructions with pictures
http://servicemanuals.vstore.ca/

The two pictures were shot at dramatically different exposures - the "dark" one at 1/1600 shutter speed, f7.3, the "light" one at 1/320 shutter speed, f4.0. This accounts for the great difference, as the exposure conditions for the "light" one allowed much more light into the image during the exposure period. You didn't tell the whole story of how you set this up, I think you were shooting in a "spot" metering mode, where the particular exposure conditions the camera uses would vary considerably whether you were aiming at a dark area (making the picture light) or a light area (making the picture dark). I would make two recommendations: Switch your metering mode to "center weighted" (the mode labeled "[(•)]"), and also change your ISO setting to AUTO, as there would be no reason for shooting these photos at ISO 200 that I can think of.