Hello guys! Sorry for a silly question, but I'm not sure I know the correct answer. One of the cameras I'm using is Canon 5d classic, and it has some dust on the sensor and viewfinder (not unusual for 5di). I just got a new lens, and I'm wondering if there's a possibility for the dust on the sensor/viewfinder get inside the lens while shooting? Or I should clean the sensor/viewfinder before mounting? Or just forget about dust as dust will evertually get inside the lens? Thanks! I appreciate your answers!
What I know (an it may not be the only option), when you get a CPS membership, Canon sends you some coupons for free cleaning. So, what you need to do is just send your camera/lens to Canon with this coupon and you're all set. Hope it helps.
