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0
votes
2answers
561 views

How do you remove the Canon 300mm f/2.8L IS II USM Tripod Collar?

I was wondering if anybody has any knowledge on the tripod collar on the 300mm f/2.8L IS II USM. I have an application where the collar needs to be removed to mount the lens in a rig. With other ...
5
votes
2answers
427 views

Will a third-party tripod mount collar hold my lens securely?

I have lost the tripod mounting ring for my Canon 70-200mm f/2.8 IS USM. It is very expensive to replace it with an original one [about £140.00 as of May 2012]. I have noticed that there exist ...
13
votes
3answers
6k views

What are the different Canon tripod mount ring types for?

What are the types of Canon's tripod mount rings? I've heard about A, B, C and D types, but have no idea what it means or what the difference between them is.