Friday, October 5, 2012

What happens if a translucent mirror got dust on it?

My roomate is a seasoned Nikon D7000 user and yesterday he cleaned his sensor becaude it has lots of dust on it. I am a relatively new Sony SLT A77 user and I wonder what should I do if there are dust on my translucent mirror in the future? Should I clean it just like cleaning sensors?
>>> What happens if a translucent mirror got dust on it?