I was wondering how often should you get the sensor & the internals cleaned on a digital camera. I have had my 450d for about 3yrs. I would also like to know if there is a company that maybe recommended, in the Sydney outer west. Also what approximate cost would I be looking at.
Canon 450d, canon 1.4 50ml, 100-400L, Tamron 18-250, 430 exII.