Hey guys Right now I've only got a 58mm 3-stop Hoya filter from my old Canon, which I have ordered a step-up ring for thanks to a recommendation on this site (I was going to give it away!). I would like to get a 10-stop filter also and maybe even a graduated ND filter. My question is, should I get these in the size of my current lens then use more step-up rings for any new lenses I get (the ones I have my eye on are all smaller) or get those gel ones that slip in? The pro landscape guys around here all seem to use those as they say it makes composition easier (due to being able to see). Are they even a thing outside of DSLR land? Also, the guy at the local camera shop told me not to bother getting ND filters in various sizes and get one of the variable ones instead- are they just as good? Or, more importantly, will I (as a beginner hobbyist) notice a difference? Thanks!