i can verify that fingerprint claim..
i tried Tokina (surprisingly easier to clean than Hoya, even though they are supposed to come from the same manufacturer), Hoya, Nikon NC, B+W MRC.. no doubt about B+W being easier to clean.
I use one of those 3M non-scratch wipes and a conventional cleaning fluid.
See here <<====
i uses the new 3m cloth that can be used on glasses without scratching... got many colors to choose from! not alot of places got sell i think, but u can try home fix and popular books store!
using lens tissue or microfiber cloth.
use micro fibre cloth or use lens cleaner with lens paper
D800 | D700|16mm f2.8D|35 f1.4G|50 f1.8G|60mm F2.8D|85mm f1.4G|16-35 f4G|70-200 f2.8 VR2| SB900
Actually using those lens cleaning liquids also not recommended cos will leave a layer of residue.
Canon EOS 5D, 24-70 f/4 L IS, 50 f/1.2 L, 70-300 f/4-5.6 L IS, 600EX-RT. Sigma 12-24 f/4.5-5.6 EX.
Canon 30D, G11, 50 f1.8II, 10-22 f3.5-4.5, 24-70 f2.8L, 70-200 f2.8L IS, EX580II
I blow the dust off with a blower and then pour some clean water at room temperature on filter and wipe it off with a soft tissue that I got with a spectacle case.
tap water : if it doesnt have any impurities that might scratch, it may be ok.
never use ethanol or any other stuff