Help! cannot remove circ. polarizer filter!?
Bigmike1 wrote:
After reading all of the posts I wonder if wiping a little WD40 on the threads with your finger before mounting the filter will keep it from becoming stuck. I'm sure this will elicit a lot of discussion on the subject.
Well, it isn't recommended, however a small amount of just about any lubricant would definitely help prevent a stuck filter. I would use something small such as a toothpick to apply a judicious amount.
lamontcranston wrote:
Everything I read says aluminum is harder than brass. Not being a metallurgist, I'm not an expert on metals.
"In general aluminum is slightly harder than brass. However, aluminum alloys can be softer that some brasses. The general Brinell hardness (BHN) range from 50 to 110 for both alloys.
Source:
https://ca.answers.yahoo.com/question/index?qid=20080102182855AA7l0dtFrom the B&W website:
"Not all mounts are created equal. B+W has invested decades in perfecting the ideal design, materials and craftsmanship to maintain the industry’s respect. Made of quality brass, each mount is machined, then a black coating is applied to eliminate reflections."
"Why does B+W use brass rings?
Aluminum rings will often bind to the aluminum housing of the lens. Brass will minimize this binding, making it the superior choice for filters."
https://www.schneideroptics.com/info/faq/bw.htm#qu3Everything I read says aluminum is harder than bra... (
show quote)
Thanks for bringing this to my attention - the brass coating may be softer than that of anodized aluminum. Brass threads are stronger. The key to prevent binding is to keep the threads clean and straight - handle with due care. By the way, B+W makes filters, B&H sells them!
redfordl wrote:
toxdoc the rubber band did the trick. Thanks!!
Now that the filter is off you should take steps to avoid future seizures. A very, very tiny amount of antiseize compound worked into the threads of the filter will do it. It contains graphite which has very low slip friction. Be careful to wipe off any surface graphite but leave it deep in the threads.
Think I would go for the wide rubber band or OXO lid remover before cutting slots into the filter ring.
johnboy46 wrote:
I had the same problem. Took it to a lady that repaired high end cameras. She trained in Japan. She told me Americans are too rough and use too much pressure. Too much pressure bends the shape of the ring and makes it harder to remove. Just use very gentle pressure and it should come off easily. Mine did.
This is my method, works every time, space your fingers and thumb around the filter, not around the smooth outside of the filter but on the front edge of the filter which you will find is serrated so you can get a good grip without much pressure.
redfordl wrote:
Before i try something drastic to remove circ polarizer filter from lens can anyone make some suggestions? It has always been tight,but this time no go. Thanks!!
Ok so you probably think you are the first toe experience this?
Wrong most of us have.
There is actually a set of filter wrenches, inexpensive but not needed.
Fist is the ring bent or damaged. Yes go to foto shop. No then try this.
Grip the base ( part that does not revolve) and hold tight with a Jar opener grip or similar material.
Then using a similar material hold the ring ( circulating) and push gently in as you turn it counter clockwise.
Pushing it in causes it to lessen the cause of it being hard to remove. AS both rings are being gently turned but firmly turned with downward pressure it most of the time will release.
Once off and free apply a very small amount of Vaseline petroleum to the lower ring that sits on the lens.
Been there and done that Most of time cause by a little too much tuning the attaching ring so it wont turn as you turn the PC filter
Good luck
applying the pressure on the outer ring and gently pushing it into the the base ring will most of the time
NoSocks
Loc: quonochontaug, rhode island
Another fan of using a wrench. Worked for me and I haven't had to use it again. I just tighten only until I get the smallest amount of resistance.
I carry a rubber band in my bag just for that reason. Glad someone else suggested it and that it worked. That trick has saved me twice now.
redfordl wrote:
toxdoc the rubber band did the trick. Thanks!!
Now that the filter is off you should take steps to avoid future seizures. A very, very tiny amount of antiseize compound worked into the threads of the filter will do it. It contains graphite which has very low slip friction. Be careful to wipe off any surface graphite but leave it deep in the threads.
aphelps wrote:
Now that the filter is off you should take steps to avoid future seizures. A very, very tiny amount of antiseize compound worked into the threads of the filter will do it. It contains graphite which has very low slip friction. Be careful to wipe off any surface graphite but leave it deep in the threads.
The oils on your nose works just as well, or better, and is always readily available.
Bigmike1 wrote:
After reading all of the posts I wonder if wiping a little WD40 on the threads with your finger before mounting the filter will keep it from becoming stuck. I'm sure this will elicit a lot of discussion on the subject.
The best method to prevent stuck filters is to not screw them on so tight in the first place!
There really is no need to keep twisting the filter after the screwing meets resistance. The filter is unlikely going to completely unscrew all by itself and fall off. Yet some people keep twisting with all their might... like as if they were sealing a jar of homemade jam or something! I see it done all the time.
If you want to reply, then
register here. Registration is free and your account is created instantly, so you can post right away.