Cleaning B+W

Hey everyone, i just bought myself a new b+w circular polarizer and am unsure of how to clean it best. I need your help on how to get the best clean of this filter.

thanks

Lens cloth or one of those microfibre cloths you get in household stores will be fine.
Anything you would clean a lens with is good for a filter.

Should i use any sort of fluid on it?I heard that the fluid can ruin a coating or something.

Also i have a "pre moistened lens(glasses) towlette" it says it has isopropanol. Will that work well?

604Shooter wrote in post #2457240
Also i have a "pre moistened lens(glasses) towlette" it says it has isopropanol. Will that work well?

Towelettes used for cleaning glasses tend to leave fibers (lint) behind that are very apparent if you hold the filter at an angle after trying to use one. They aren't really suited for cleaning photographic lenses and filters, at least in attempts I've seen in using them. As with all coated glass, you should handle them with care and clean them as infrequently as possible. Coatings will break down over time and lose effectiveness. As previously suggested, obtaining a quality microfiber cloth and a minimal amount of lens cleaner is the best way to go. Make sure to use a fine soft brush and/or air blower to remove any grit prior to wiping down a lens or filter or you risk having the cloth drag grit over the surface leaving scratches.

thanks!
One last thing though, can i use one of those microfiber cloths you get with your sunglasses or does it have to be better or anything?

Lens tissue paper is what I've found to be best, lent free and only use a small amount of cleaning fluid.

604Shooter wrote in post #2458306
can i use one of those microfiber cloths you get with your sunglasses

Those work fine.

What about a PEC pad and some eclipse fluid?

Eclipse doesn't work very well on lenses - it leaves some serious streaks.

Many people like ROR, though I don't care for that either - streaky, but much less so than Eclipse.

I've had the best luck with:
Always hold on the outside of the ring.
Blow off what can be blown off. (Giottos Rocket Blower, etc.)
Lightly brush off what can be brushed off. (Lens Pen, etc.)
Blow off what can be blown off.
Tilt the lens/filter at many different angles, with and without light landing on it.
Couple drops of Kodak Lens Cleaning Solution on a lens tissue.
Rub and stuff.
Tilt the lens/filter at many different angles, with and without light landing on it.
Repeat the solution & tissue procedure, if necessary.
Blow off what can be blown off.
Tilt the lens/filter at many different angles, with and without light landing on it.
Buff with a microfibre cloth.
Tilt the lens/filter at many different angles, with and without light landing on it.
Blow off what can be blown off.
Tilt the lens/filter at many different angles, with and without light landing on it.
Put back in the filter pouch.

I blow off the lens/filter as often as possible, whether the lens/filter looks like it needs it or not. And I look at the lens/filter many many times during the procedure.

And though my procedure seems extreme, it takes about a minute for a lens, maybe 3 minutes for a filter - checking both sides can spot something on the other side and confuse me.

Streaking is easily remedied if you simply fog the surface with your breath and the wipe it with a microfiber cloth.

Any product that leaves something on the lens is not doing a very good job *cleaning* in my opinion. Why would I "clean" with something that leave the lens dirty?

Primarily a blower and/or brush since it is usually just dust on the filter. If the filter does happen to get a fingerprint or other mark I usually just wipe with the edge of a cotton shirt or microfiber cloth if handy. I occasionally use a lenspen for stubborn spots - but it is very rarely needed. I also use warm water and a bit of dish soap if the filter is really dirty from sea spray or something - and then dry it with a microfiber cloth.

I hate Eclipse and pec pads - worst streaking mess I have ever seen in my life.

To each his own on this one, I suppose, but this works for me...

ROR and Pec Pads works for me. I just ordered some Rexton Lens and Optical Surface Cleaner which is also supposed to be excellent, from http://www.surplusshed​.com/pages/item/m2634.​html .

I have some Formula MC fluid which I use, together with lens tissues, if I need to wet clean my B+W MRC filters. Normally a quick blow off and possibly the gentlest of attention with a LensPen (which I use cautiously, but it can be used in the field) is all that's needed.

David

What's the best?
One that doesn't affect the lens in negative way.