Dylan Yolles asked >really big snip..... Is there some reason to use a better filter on the 24/120 as the >salesman said (his reasoning was that the aspherical lens needed a better >filter). Dylan It has been discussed recently on the list so you may want to get more info out of the archives, but this lens needs a thinner edged filter so that you won't get any vignetting when using the lens at the 24mm end. BTW-Anytime you put a filter (whether it be glass or resin) on the front of a lens you will degrade your images to some degree. The better the glass filter the less degradation. So if you can afford it buy a better filter. Another way of protecting your lens would be to get the lens hood for this lens, it will offer some protection.. Terry
