Hate the RF100-500 Lens Collar

[tangogal]

Does anyone else hate the lens collar on the RF100-500 lens? If it's somewhat loose, it frequently breaks open potentially spilling the lens to the ground. It is very hard to tighten enough so that it doesn't slip around when on a tripod. I have owned many of Canon's telephotos before I switched to the mirrorless system. I never had a problem with their lens collars. What genius in engineering came up with this awful lens collar design????

[CodeTHR33]

Excellent. Thanks.

[CodeTHR33]

Mine just says Canon Tripod Mount Ring F (WIII). I’ve seen elsewhere that the actual part number is YG2-4757-000.

[Waddizzle]

I must have missed something.  My only take away from that video is that if you wish to rotate the lens in its collar, then do not loosen it much.  Simply unlock it, and that’s it.

[tangogal]

Don’t unlock it. It will fall out. Loosen it a little but keep it locked.  The problem is two-fold. It unlocks easily and the collar will break open and the lens will fall. The second issue is it is hard to get it tight enough that the lens won’t rotate when on a tripod. Even a small amount of movement can ruin your shot. This is the worst lens collar design I have ever seen.

[Waddizzle]

---

@tangogal wrote:

Don’t unlock it. It will fall out. Loosen it a little but keep it locked.  The problem is two-fold. It unlocks easily and the collar will break open and the lens will fall. The second issue is it is hard to get it tight enough that the lens won’t rotate when on a tripod. Even a small amount of movement can ruin your shot. This is the worst lens collar design I have ever seen.

---

Perhaps I misspoke.  By “unlock” I was referring to the thumb screw.  Like the video, if you keep turning the screw everything will eventually fall apart.

Make sure the screw is fully pulled out so that you can fully insert the collar ring before you begin tightening it down.  That is my contribution.

[tangogal]

I do exactly as described but if you loosen the screw too much, the collar opens even without pulling out the screw to unlock it. And when you lock the collar on and turn the screw to tighten it, it still is likely to turn on a tripod. It is simply the worst design I’ve ever encountered and I’ve had many telephotos.

[hugebob]

I've noticed this on my lens as well. It's not terrible. But, when using a tripod, I don't want the barrel slipping on me. I have the RF70-200 and locking ring is rock solid. I just sent a repair request. Hopefully, Canon can address this is short order.

[Tronhard]

I have the RF 100-500 and never ever had an issue with it.  Strange...  I honestly feel it seems like a defective unit, I have no issue with the design of the collar.

[hugebob]

I reported this very issue to Canon. Since mine was still under warranty, they sent me a replacement which is rock solid!

[tangogal]

Is it the same design?