Hi i recently bought a Canon Sx1 IS and heard that it is possible to mount filters on it.
Which size is it possible to put on?
The lensonly goes down to f 1/8 so long exposures on a bright day is impossible, which ND would you recommend for an exposure around 4-6 seconds, and maybe 15 sec.?
Can they be combined or would this result in too much vignetting?