I recently tried to clean my sensor myself as i noticed some faint dust specks on my pictures. I did some self-diagnose - taking photo of a white screen, and then blah blah (not gonna type the entire thing) - when the supposely clean sensor actually is FULL of dust.
I googled on the how-to and gladly followed it faithfully, except when someone bumped onto my elbow while i was dedicately using cotton buds to rub off some subborn dust - i know what im doing, just read on.
Since then there is this really bright spot appearing at the same place everytime on my pictures. Did i just busted my low-pass filter?