Cleaning multi coated filters

[vulcanlover]

I've managed to get a fingerprint on my multicoated Calumet polariser and can't seem to shift it. I've tried a Lee Filter cloth and Lens pen with no success, as they have both just left a smear. Anyone got any tips on how to clean these types of filter?

 

[andephotographic]

Best thing I ever did to a Calumet multicoated filter was drop my lens and smash it.
It just wouldn't come clean and seemed to suck all the dust in the room onto it's surface.

 

[david1701]

I use the dishwasher for all my filters

 

[littlemonster]

In order from least to most damaging:

Know this may sound off, but have you tried breathing on it? The steam created by your breath hitting it can do wonders (years of wearing glasses! )

A cotton cloth - may shift it better, just may need to use a microfibre or lens pen to remove any bits of cotton fluff.

Fairy liquid and some sort of soft cloth in the sink

Wire wool

 

[LongLensPhotography]

A cotton cloth - may shift it better, just may need to use a microfibre or lens pen to remove any bits of cotton fluff.

That works well for most filters. But what about something like Hoya ND 400X? I don't seem to clean that one at all.

 

[Islander]

Try a drop of isopropyl alcohol and a microfibre cloth.

 

[vulcanlover]

The simple act of breathing on the filter and then wiped with the Lee cloth has helped considerably thanks. Why didn't I think of that!!!! Thanks everyone for their advice.

 

[Zogger]

I normally use pec-pads for filter cleaning if needed, and then some eclipse fluid for non-coated ones. I seem to remember the ND400 has a specific warning that it mustn't be cleaned with cleaning fluids...
Mine always picks up fingerprints, but I think probably the uncoated ones are just as bad, it's just that the fingerprints are much harder to see.