Lenses in olden days are easily scratched but I believe modern days lenses are very resistant to scratches. As you all know, the more lenses in between, the chances of getting better shots goes lower (due to light passing thru more glass, of course if the lens is of high quality, it doesn't really matter).
I understand a lot of ppl put a UV filter to act as a 'protective' layer but will that degrade the shots to a certain extend (even if it only can be seen when blown up real big)? I've tried with & without my Tokina UV filter but seriously I can't notice the difference (maybe I'm still not so pro yet).
Welcome any suggestion(s)