spot on some images

[freeway66]

Has anyone ever noticed a spot on images shot with a D70s? Recently I have noticed a spot dead center on the image. This is not in all photos but once in a blue moon it appears. I have removed the lens and with a tiny flash light looked at the mirror and have seen nothing to produce this spot. Any help in figuring out this would be great. The camera is about 8 months old and is taken great care of. The spot appears in photos that have sky

[ktixx]

Has anyone ever noticed a spot on images shot with a D70s? Recently I have noticed a spot dead center on the image. This is not in all photos but once in a blue moon it appears. I have removed the lens and with a tiny flash light looked at the mirror and have seen nothing to produce this spot. Any help in figuring out this would be great. The camera is about 8 months old and is taken great care of. The spot appears in photos that have sky

Well first off the mirror moves out of the way when you take a picture, so even if you had something on the mirror, you wouldn't see it in the image.

What you ARE seeing is dust. You can post a picture so we can verify 100% but anytime you shoot a shot with a high f/stop the dust will appear (it will be clearer the more DOF you have). What you need to do is get the Copperhill System (http://www.copperhillimages.com/index.php?pr=Tutorials). It is the best way to clean your sensor.

To answer some qestions that I am sure you will ask:
1) Cleaning the sensor is really easy - it just takes a little practice
2) You are not ACTUALLY cleaning the sensor, you are cleaning a piece of glass over the sensor therefore:
-----a) You can put a little pressure and won't cause damage
-----b) You won't hurt the sensor as long as it is done correctly
3) I have done this probably 40 times with my and other cameras (Canon 20d & 30D) and have never had a problem
4) It usually takes about 2 to 3 times to get the sensor completely clean

Good Luck
Ken

[freeway66]

Thanks for the information. I took my D70s to my local camera shop and as you mentioned it was indeed dust on the sensor.