I recently bought and started using canons cheapest 50mm lense EF 50mm f/1.8 II
Before using it today i attemptd to clean both sides of the lense. The camera end of the lense has no seal between the glass and the lense body and without even trying i was able to blow dust/lint into the lense and can now see it settled on the inside of the glass. Now i realise that the lense is cheap and built cheaply, but has anyone had any success removing dust from inside these or any lense and if so than please let me know how you did it.