New answers tagged artifacts
It certainly looks like dust in the air - one other thing to check is that your sensor is clean - you can buy kits to clean the sensor from probably all camera shops. When you use one, REMEMBER! BE GENTLE WITH YOUR SENSOR :)
I recognized it right away.....take off that cheap lens filter the cameras store sold you(they're useless rip-offs) and replace it with a lens hood(will reduce lens flare AND protect lens). Hoods for pros, filters for amateurs. Bad lens filters tend to be flare prone. Since you went from full frame, my guess is the cheap lens filter effect is much more ...
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