The high-end Hoya filters are optically equivalent to B+W. Although I have not used Hoya filters, some people have stated that the Hoya filters are harder to clean than the B+W MRC coated filters. Reportedly, the new Hoya HD line is much better in that regard, similar to the B+W MRC or Nano coat. Also, the B+W mount rings are brass, vs. aluminum; the brass has less of a tendency to get stuck (but get a pair of plastic filter wrenches, just in case). I think you're fine with either B+W or the high-end Hoya.Woah, theres something I never considered. Why would the aluminium ones get stuck more though? Also, are filter wrenches the only way to get them out?
April 21, 2014, 04:30:21 AM
Topic: Cheap UV filters (Read 6346 times)
Woah, theres something I never considered. Why would the aluminium ones get stuck more though? Also, are filter wrenches the only way to get them out?
Brass has a lower coefficient of thermal expansion, meaning it doesn't expand/contract as much with changes in temperature as aluminum (~20% less linear change, IIRC). But actually, it's rare for a filter to get stuck to a lens, and if it happens, it's usually pretty easy to remove, even with a rubber band, sheet of rubber like you'd use to open a jar in your kitchen, etc. The real need for filter wrenches is if you stack two filters together.
if your filter gets stuck just sit under aircon for a bit to let t contract then you can get it off, its usually only a potential issue if you are in hot weather that it can bind up
Thanks Neuro, that's very helpful.