I'm getting a little sick of cloning dust spots from my shots. I was having a look through some old shots and started seeing that it's the same spots I've had since I got it (second hand). For this reason I'm not sure if a blower brush is likely to shift it. I've been looking at this this , I know someone who got one but I didn't get to find out how well it worked. Anyone tried it? If not does anyone have a relatively inexpensive suggestion? Thanks in advance.