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Message: <blockquote data-quote="Dave_W" data-source="post: 124479" data-attributes="member: 9521">If you're seeing these spots thru your viewfinder then chances are they're on the mirror or inside the viewfinder complex. I realize it can be annoying but if it doesn't show up in your photos then I wouldn't worry too much about it. But while we're on the subject of spots, perhaps now would be a good time to test your sensor and if your sensor is dirty perhaps you could get the sensor and viewfinder cleaned at the same time. To test for spots on your sensor do the following  Take your camera outside and turn off the auto-focus. Then set your A at the smallest setting and take 2 or 3 out of focus shots of the sky. Then download the photos and turn the contrast up to the maximum. If you have any dirt at all on your sensor, you will see it. If you do not see spots, you're good to go.</blockquote>