Stuck Filter (Page 2): Hi, yes that is the wrench I ordered from B&H. Did not work.

finalimage Loc: Brattleboro, VT

Hi, yes that is the wrench I ordered from B&H. Did not work.

Mi630

For what it is worth I was at the Camera Corner in Davenport Iowa when a customer came in with exact same problem. After trying everything Doug who works there cut it off with no damage to the lens at all. Took him just a couple minutes. He said he has had to do it a few times.

Thomas902 Loc: Washington DC

https://www.bhphotovideo.com/c/product/807009-REG/Sensei_FW6277_62_77mm_Filter_Wrench_Set.html

Have these... they are virtually useless for any seriously jammed filter... I've had limited success with neoprene coated metal ones...

Steve Perry helped me free up an filter that had been literially "glued" to my 200mm f/4 Nikkor for over three years... He suggested a Hair Drier to heat up the filter! AWESOME! it worked!!! Steve's the man...

Ok, here is the not so good news finalimage... if the filter has as you have indicated has a 1/16 inch gash the optic may likely be seriously damaged... This type of impact with cause "decentering" of critical lens elements most likely the critical front elements...

Google decentered lens test...

Food for thought... I've worked with many commercial shooters... nearly all use lens hoods...
The compelling reason is exactly what has happen here... Filters DO NOT protect a lens from impact damage... thinking Canon make a hood for this lens, it should have been in place... enough said

finalimage Loc: Brattleboro, VT

Thanks for your reply. Will try the hair dryer.

Sidwalkastronomy Loc: New Jersey Shore

Return to canon

old poet

This has come up many times on UHH. If none of the easy methods work, use a Dremel to cut a little notch in in opposite sides of the raised edge of the filter. Blow away the filings. Use a thin straight edge such as a case knife blade or hacksaw blade to sit in the notches across the filter. Carefully turn the blade for leverage. This worked great for me. I do not see why filter makers do not just have the notches made into their filters,

dennis2146 Loc: Eastern Idaho

Les Brown wrote:

This has come up many times on UHH. If none of the easy methods work, use a Dremel to cut a little notch in in opposite sides of the raised edge of the filter. Blow away the filings. Use a thin straight edge such as a case knife blade or hacksaw blade to sit in the notches across the filter. Carefully turn the blade for leverage. This worked great for me. I do not see why filter makers do not just have the notches made into their filters,

If the filter manufacturers cut notches as you describe they would be admitting their filters stick. More to the question is why do some filter users need to install the filters with a jackhammer to begin with.

Dennis

Basil_O Loc: Minneapolis, MN

Try turning the lens upside down on a surface such as a mouse pad and then twisting it. This has worked for me in the past when wrenches and my normally effective jar lid remover have failed.

Notorious T.O.D. Loc: Harrisburg, North Carolina

Ok, this may be a job for a shop to take a look at. Contact Canon through their website or search for camera repair and see what comes up. There has to be something within driving distance I bet. Good luck. I’ll second the recommendation of using lens hoods...

finalimage wrote:

[There is no filter on the lens, only the Xume ring that attaches to the lens. quote=finalimage][the ring that attaches to the lens is stuck. I wish the ring were stuck to the magnetic cap but that could not happen. Thanks quote=Notorious T.O.D.]If the filter ring is stuck to the filter the OP will need a way to hold the filter and turn the mounting ring. That might take 2 sets, just saying...

[/quote][/quote]

Notorious T.O.D. Loc: Harrisburg, North Carolina

What the OP is dealing with is just a ring. It attaches magnetically to another ring which holds the filter or lens cap. I suspect the threads are damaged and preventing turning...

Les Brown wrote:

This has come up many times on UHH. If none of the easy methods work, use a Dremel to cut a little notch in in opposite sides of the raised edge of the filter. Blow away the filings. Use a thin straight edge such as a case knife blade or hacksaw blade to sit in the notches across the filter. Carefully turn the blade for leverage. This worked great for me. I do not see why filter makers do not just have the notches made into their filters,

rangel28

I filled a long Tupperware container with water, froze it, and turned the lens upside down filter first into the ice. I let it sit on the ice for a few minutes and then twisted the lens, freeing the filter. The filter was a B+W filter with broken glass and I think it was made of brass.

amfoto1 Loc: San Jose, Calif. USA

If the filter holder ring has a dent in it, that will either need to be straightened first (if that's even possible) or the ring will have to be cut with a metal saw. From the description, I suspect cutting the ring will be necessary.

But, FWIW, I've made plastic tools myself from old toothbrush handles to successfully straighten lens barrels that were dented. Usually a blunt plastic tool can be used with just hand pressure to straighten aluminum parts. Sometimes I've had to make an "anvil" out of a hardwood scrap with a hole saw about the diameter of the lens barrel, rested the lens in that and then lightly tapped the plastic tool with a small hammer to straighten the barrel. The trick is to tap very lightly, so as not to damage the lens any further, and to gradually straighten the barrel. This might work with the stuck ring, too, if it's fairly soft material such as aluminum. However, I doubt that's the case.

Since it's magnetic, that ring is probably steel and may be impossible to straighten in the above manner. There are special tools to straighten threaded lens barrels (https://www.micro-tools.com/products/lv1) that might work, although I wonder if those might slip from the unthreaded inner surface of an adapter ring. Besides, those tools are fairly expensive. Cutting may be a better option.

If you have to cut it be very, very careful to keep metal chips off the optics and out of the lens mechanisms. I'd be reluctant to use a power saw like a Dremel. A hand tool would be safer. Maybe cover the lens optics with a dental dam and position the lens so the shavings from the saw fall away from focus rings or zoom rings of the lens.

Only cut partially through the ring, to avoid cutting into the lens itself. Make two or three relief cuts, then use a pair of pliers to bend the ring so that it can be removed.

After the ring is removed, if it's metal the lens barrel itself may still need repair. Many modern lens barrels and filter threads are plastic and won't be repairable. But if it's metal it's probably aluminum and the above methods and tools may work.

If you have any doubts about it, look for a professional repair person...

I did a quick search for camera repair shops in the Daytona FL area and found: https://www.yelp.com/biz/clems-classic-cameras-daytona-beach?osq=Camera+Repair. Rather than buying tools and risking further damage

Notorious T.O.D. Loc: Harrisburg, North Carolina

If cutting the ring is required I would not use a saw. I would use a triangular jewelers file or saw sharpening file, xx double slim. I would carefully file at a 45 degree angle away Ron the center of the lens toward the outside. A damp paper towel can be placed over the lens glass to catch any filings landing there...

amfoto1 wrote:

If the filter holder ring has a dent in it, that will either need to be straightened first (if that's even possible) or the ring will have to be cut with a metal saw. From the description, I suspect cutting the ring will be necessary.

But, FWIW, I've made plastic tools myself from old toothbrush handles to successfully straighten lens barrels that were dented. Usually a blunt plastic tool can be used with just hand pressure to straighten aluminum parts. Sometimes I've had to make an "anvil" out of a hardwood scrap with a hole saw about the diameter of the lens barrel, rested the lens in that and then lightly tapped the plastic tool with a small hammer to straighten the barrel. The trick is to tap very lightly, so as not to damage the lens any further, and to gradually straighten the barrel. This might work with the stuck ring, too, if it's fairly soft material such as aluminum. However, I doubt that's the case.

Since it's magnetic, that ring is probably steel and may be impossible to straighten in the above manner. There are special tools to straighten threaded lens barrels (https://www.micro-tools.com/products/lv1) that might work, although I wonder if those might slip from the unthreaded inner surface of an adapter ring. Besides, those tools are fairly expensive. Cutting may be a better option.

If you have to cut it be very, very careful to keep metal chips off the optics and out of the lens mechanisms. I'd be reluctant to use a power saw like a Dremel. A hand tool would be safer. Maybe cover the lens optics with a dental dam and position the lens so the shavings from the saw fall away from focus rings or zoom rings of the lens.

Only cut partially through the ring, to avoid cutting into the lens itself. Make two or three relief cuts, then use a pair of pliers to bend the ring so that it can be removed.

After the ring is removed, if it's metal the lens barrel itself may still need repair. Many modern lens barrels and filter threads are plastic and won't be repairable. But if it's metal it's probably aluminum and the above methods and tools may work.

If you have any doubts about it, look for a professional repair person...

I did a quick search for camera repair shops in the Daytona FL area and found: https://www.yelp.com/biz/clems-classic-cameras-daytona-beach?osq=Camera+Repair. Rather than buying tools and risking further damage

If the filter holder ring has a dent in it, that w... (show quote)

Sidwalkastronomy Loc: New Jersey Shore

I would hook up a strong wet dry vac near where I'm cutting to catch the fillings. Hold lens down let gravity help

Dave H2

finalimage wrote:

[There is no filter on the lens, only the Xume ring that attaches to the lens. quote=finalimage][the ring that attaches to the lens is stuck. I wish the ring were stuck to the magnetic cap but that could not happen. Thanks quote=Notorious T.O.D.]If the filter ring is stuck to the filter the OP will need a way to hold the filter and turn the mounting ring. That might take 2 sets, just saying...

[/quote][/quote]

Consider a rubber strap wrench set from Harbor Freight cost less than $10. You can hold the lens with one of the straps and try the filter wrench with the other.