Hi I'm new here and an amateur so please be a bit merciful with me! I bought a canon g5x2 3 months ago and i noticed a weird blue-ish "stain" that appears in a certain angle when i take a photo against the sun. it's a bit weird because i owned another g5x2 a while back and i can't remember having that problem. i haven't noticed a scratch or anything else on the lens and i keep the camera very clean anyway. any idea what causes this because it doesn't look like a normal lens flare to me. thanks and best regards!