CameraCarl
Veteran Member
This is truly ridiculous. Canon's warranty should cover everything in the box!
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RF 100-500 tripod collar won’t lock down lens
- Thread starter drippinDodger
- Start date
Occams Razor
Veteran Member
Stacked tolerances. Molds and tooling will wear over time and and I am guessing that both the lens body and tripod collar have enough tolerance creep to create this condition.Looks like that worked for you, so a good result. But I don’t see why yours should need that and mine doesn’t, or why anybody would accept it. If there’s a manufacturing error leading to a poor fit, it would just require a replacement collar that fits correctly. It’s unlikely to be the lens barrel that’s out of tolerance. It can’t be that difficult for Canon to replace the collar under warranty. If enough people complained, they would get the message and address the quality control issues.Hi,I find this very hard to understand. ... Is it possible that these are missing, damaged, or not thick enough in the affected copies? Also I can’t see where you would put a strip of leather or fake leather, unless the strips were missing? The area between the strips is conical in section not flat, and there would be virtually no room for any additional material. Perhaps you need to replace those two strips, should be an easy fix as I imagine they are adhesive-backed.
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These are the friction strips in my (OE) 100-500 collar:
I placed the strips of pseudo-leather in the white painted area between the friction strips. In the case of the RF 100-500, I placed two strips, one in each half of the tripod collar. See below.
Now the lenses is rock solid tight in the tripod collar when the knob is fully tightened.
As I recall on my old EF lenses, I only needed one strip for each of those two lenses.
Cheers,
David
Looking at the ring, if the radius of the ring is correct (likely as it appears to be a cast or machined part), the only fault that would allow a circumferential gap would be a misalignment at the hinge, maybe a loose pin or the holes for the pin being misaligned. That would be a definite fault and justify replacement under warranty.
Alternatively try the 3rd party collar?
I agree that everyone needs to submit feedback which is the only way that this will be address by Canon. I will.
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Randy
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Canon will Not replace or fix it. CanonUSA warranty does Not cover any lens accessories that come with lenses. Not the lens hood, not a tripod collar, not a front or rear lens cap. Any problem with those things, Canon will tell you to take care of it yourself. Yes, if the little release button to unlock your lens hood breaks just 60 days after you buy the lens, and you send it to Canon, Canon's response will be "Just buy a new lens hood", even though you have a 1 year warranty, it only covers the lens.
The problem with the RF100-500mm lens collar, Canon does not even offer it for sale >
However, in the UK, this would be covered under the Consumer Protection legislation. So I would suggest anyone in the UK with this problem return it to the dealer. Alternatively try the replacement Haoge/iShoot collar in this link:
Canon will Not replace or fix it. CanonUSA warranty does Not cover any lens accessories that come with lenses. Not the lens hood, not a tripod collar, not a front or rear lens cap. Any problem with those things, Canon will tell you to take care of it yourself. Yes, if the little release button to unlock your lens hood breaks just 60 days after you buy the lens, and you send it to Canon, Canon's response will be "Just buy a new lens hood", even though you have a 1 year warranty, it only covers the lens.
The problem with the RF100-500mm lens collar, Canon does not even offer it for sale >
However, in the UK, this would be covered under the Consumer Protection legislation. So I would suggest anyone in the UK with this problem return it to the dealer. Alternatively try the replacement Haoge/iShoot collar in this link:
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www.ebay.co.uk
I have exactly the same lens with exactly the same problem. I have two of these lenses, one with the problem and one that works fine. This sounds like a defect to me that Canon should fix, no charge or CarePak required. But...that's just my opinion, so I really don't expect a fix from them, sigh.
My brother and I both have this lens, and both work as expected. As you have two, one of which has the fault, have you tried exchanging the collars, which might show whether the problem is the collar or the lens barrel itself? Perhaps you could also measure the diameter of the collar area on the lens barrel with callipers?
Im guessing you’re in the US. In the UK and EU this would be covered under consumer protection law as a manufacturing defect for six years, irrespective of the warranty, and the dealer is responsible for correcting the problem. We both bought ours direct from Canon. Perhaps the quality control is better in equipment for our market?
But I completely agree this should be fixed by Canon at no cost to you.
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davew44
Active member
After reading this thread I tested mine.. Yup With it finger tight it would slightly slip about 1/2 inch.
Since everyone has stated Canon can care less and it is up to us to fix, I had a few rolls of adhesive foam that almost all new window air conditioners come with I had this saved in a drawer for a few years, I took off the collar and applied a few more strips to each side then put the collar back on .. Finger tight it did not move at all.
Then to be sure I put a rag over the " thumb screw" as to not mar the finish and gave it a little more SNUG with pliers.
Issue resolved in 10 minutes and we can now move on instead of making this a 4 year ordeal on the forums what canon has to do or should do..
As a photographer you should also be able to think on your feet and fix issues and not always cry to go back to a manufacture already knowing they refuse to fix this exact issue.
Now if you look at the lens and why this is caused? it is not 2 set flat machined pieces it has 3 different angles and radiuses .
Being in a mass produced arena I am sure the tolerances of each is a very sloppy mess..
shim it up with something waterproof and that can take heat and move on.
Since everyone has stated Canon can care less and it is up to us to fix, I had a few rolls of adhesive foam that almost all new window air conditioners come with I had this saved in a drawer for a few years, I took off the collar and applied a few more strips to each side then put the collar back on .. Finger tight it did not move at all.
Then to be sure I put a rag over the " thumb screw" as to not mar the finish and gave it a little more SNUG with pliers.
Issue resolved in 10 minutes and we can now move on instead of making this a 4 year ordeal on the forums what canon has to do or should do..
As a photographer you should also be able to think on your feet and fix issues and not always cry to go back to a manufacture already knowing they refuse to fix this exact issue.
Now if you look at the lens and why this is caused? it is not 2 set flat machined pieces it has 3 different angles and radiuses .
Being in a mass produced arena I am sure the tolerances of each is a very sloppy mess..
shim it up with something waterproof and that can take heat and move on.
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davew44
Active member
Fixed mine with adhesive strips that come with the window air conditioners it is foam so being foam it will remain mold free and can take compression and heat and cold.. a few strips to each side, hand tightened it never moved. then put a rag on the knob and gave it a little snug with the pliers and good to go..
Sorry, but it should not leave the factory like that. It is a manufacturing fault. The customer should not have to fix a £/$/€3000 lens with tape - even if you can.
You shouldn’t have to tighten it to immobility. What if you want to rotate it?
davew44
Active member
You shouldn’t have to tighten it to immobility. What if you want to rotate it?
I shoot mostly sports, I have no need to rotate mine but I do have the need to keep in on my side on a strap when I need to use my other camera with The short lens.. SO mine had to be extremely tight and I made sure that collar will not slip on me.
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Robert Krawitz
Leading Member
I'm not sure whether this is the problem (or one of the problems) under discussion, but while mine does lock down (I just checked it), it is possible to rotate the lens with a good amount of force, which I haven't been able to do with other lenses (EF 70-200, EF 100-400 II). On a monopod, it's considerably easier to rotate it, not surprisingly. This is somewhat annoying when shooting football, although actually my photos were more level than usual, so maybe the ring twisting makes it easier to me to keep the camera level as the monopod rotates around its foot as I shift position.
There's no indication that the screw is loose or that the ring will open (allowing the lens and body to spill if I carry it by the monopod), but it's something to keep in mind, perhaps it's best not to try to carry it that way to begin with and make sure it's always secured to my body.
There's no indication that the screw is loose or that the ring will open (allowing the lens and body to spill if I carry it by the monopod), but it's something to keep in mind, perhaps it's best not to try to carry it that way to begin with and make sure it's always secured to my body.
I've been experiencing the same issue with my RF100-500 purchased in May 2023.
I had dropped it at Canon Singapore service center: they changed the friction pads but the issue still persisted which they told me was normal. I asked to check another 100-500 they had on site:
Jérémie
I had dropped it at Canon Singapore service center: they changed the friction pads but the issue still persisted which they told me was normal. I asked to check another 100-500 they had on site:
- their collar on their lens: no movement at all
- my collar on their lens: no movement at all
- their collar on my lens: collar can be rotated even when fully tightened
Jérémie
An update on my case. I got my lens back this week and the issue is fixed, my tripod collar is now tight.
They were not very specific on what the fix was: in the end they didn't replace the barrel and they did something on the collar itself (a priori not the pads as they had changed them before).
Sorry it's not the most helpful but at least it's something they can fix under warranty
They were not very specific on what the fix was: in the end they didn't replace the barrel and they did something on the collar itself (a priori not the pads as they had changed them before).
Sorry it's not the most helpful but at least it's something they can fix under warranty
I bought my RF100-500 a couple of months ago and noticed the same thing, I called into the shop where I bought it to check another copy.. which was tight.They advised me to bring the lens in for a check but being an engineer curiosity got the better of me.
I removed the circlip washer and spring from inside the mount revealing a chrome collar which is retained by three tiny screws, I slackened the screws and pressed the collar into the mount firmly before retightening the screws...voila once reassembled no more rotation from the ring. It would seem the chrome collar was not fully seated against the face of the ring by a minuscule amount but enough to prevent fully locking it.
I removed the circlip washer and spring from inside the mount revealing a chrome collar which is retained by three tiny screws, I slackened the screws and pressed the collar into the mount firmly before retightening the screws...voila once reassembled no more rotation from the ring. It would seem the chrome collar was not fully seated against the face of the ring by a minuscule amount but enough to prevent fully locking it.
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Robert Krawitz
Leading Member
The hard part is reassembling it. There is a spring that makes it very difficult to get the circlip back on. Without the spring, there's a real risk of the lens falling off the tripod mount.
I did it by using a pair of needle nose pliers to press the washer down while pressing the circlip partway into its slot. Once it was partway in, I used a small slot screwdriver to push it home. But I'm still able to rotate it by hand, although it seems more difficult now.
I suggest not doing this yourself unless you're very comfortable with fiddly little parts with a strong spring in close quarters.
BirdShooter7
Veteran Member
I had all of the lenses you mentioned and the only two that I remember having a split collar were the 400mm f/5.6L and the 70-200mm f/4L. However, they were a different design than what the RF 100-500 L has.
R2D2
Veteran Member
Hmmm, if I twist really hard I can just budge it a little bit. It hasn't ever moved inadvertently tho (I carry it around by the foot while hiking). I wonder if I shouldn't try this "fix" anyways.
Thanks for the heads-up!
R2
Robert Krawitz
Leading Member
Only you can make that decision. If I had one that did not have this problem to any degree that mattered, I would personally not try it.
This fixed the issue for me as well, thank you!
The lens collar has no give at all now, while I previously didn't have to apply much force for it to rotate. I was worried about having to send both the collar and lens to CPS for inspection, with the costs that would entail.
I didn't find reassembly too diffcult; after reinserting the spring I used a small screwdriver to hold the washer in place and press the spring down, while using the lens collar to keep the screwdriver in place as pictured. Then I just inserted the circlip washer by hand.
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