QUOTE(aaronpang @ Dec 3 2015, 10:43 AM)
You could try locking up the mirror and using a blower maybe it's just dust.
My camera had dust on the sensor, so it was simple enough to fix.
Because I'm new to this so basically don't dare to DIY everything lol
QUOTE(Lego Warfare @ Dec 3 2015, 10:56 AM)
Yep like they said, it's most likely the mirror or focusing screen as your images displays those spots. They charge around RM50-65 (can't remember exactly) if you send to Canon HQ at Peremba Square, can collect same day or even within 1-2 hours.
Have you tried the sensor cleaning in your settings? If the dusts/dirt isn't sticky you could use a blower.
On a side note:
If you see spots in your viewfinder BUT your images do not capture those spots, it could be:
1) Dusts in your eyepiece/viewfinder lens (apparently charges more to clean in this situation as they'd have to disassemble parts of the DSLR)
2) Dusts in the superimposed lens/mirror (Easier for them to disassemble and low/free charge)
The 2nd one happened to me, and they cleaned mine for free

Have tried the sensor cleaning, still the same
I might just go to the center though