Not the first post on the subject (though a link to a
LensRentals blog post that was
provided by @AlanF going on 9 years ago is still relevant), but just a reminder of why I use protective filters on almost all of my lenses.
Incidentally, a couple of years ago I wrote a long post about B+W's 'new' filter mounts (Basic, Master and T-Pro) and packaging (leather pouches
announced for their 75th anniversary). That post seems to have disappeared. I'm sticking with the Master line. It has the same spec as the prior XS-Pro while the T-Pro mount is very slightly thinner, but I find the XS-Pro to be more than thin enough, and I'll pass on the titanium-
colored coating instead of the black coating on the same brass; I also prefer the knurling on the Master over the smooth T-Pro edges.
Despite their announcement in 2022 that, "
From now on, all B+W filters will be delivered in high-quality cases made of genuine leather," they've changed the packaging inside the box yet again. For those keeping track, it was a plastic box with a foam insert for many years, then a brief flirtation with a fabric bag before the switch to a leather pouch in 2022, and now they are using a lightweight metal alloy box (aluminum-looking but a magnet sticks) with a foam insert.