I use a Canon 7D. On several occasions, when taking photographs at relative high ISO (e.g. 1600 or 2000), I have noticed red dots on the image. See this image: https://www.dropbox.com/s/i0ck3yx4o341npb/IMG_9300.jpg Look at the crest of the turaco and also in the dark areas at the base of the tail. When viewing the image on different image viewers, the red dot is present in the original CR2. I conclude this is not an artifact of image processing, although it becomes much more obvious when doing some edits, e.g. increasing the brightness and the red dots change when magnifying an image. I have 2 questions: 1) What causes this? 2) Is there an easy way in dt to remove it? Kind regards, Willem Ferguson
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