Greetings from Nova Scotia
Being the new guy ... please have patience with my question. New to digital SLR cameras. My starting point is an older D40x acquired through an eBay purchase. Ahhh ... your first mistake I hear many of you say. However it seems to be in good shape .... But the images with the sky or snowy hills have some small out of focus circles and in one spot partial arc-like smudge. All the marks are always in the same place on any image. Could these be an indicator of a sensor screen in need of cleaning or maybe a greater problem. If this picture loaded correctly you can see the arc like smudge to the left above the branch and some of the circles to the right side
Please offer your educated comments. Thanks
Mike