Filter size?

[McNyat]

So I have finally taken the plunge for a Canon 70-200 f2.8 is, and need to sort a filter now before it arrives.
I have a 17-55 f2.8 is, that I am going to sell, and wondering if the filter ring size on it is the same size, as I would just swap it over if it is?

 

[sep9001]

Looking here the size for the 70-200 if 77mm

https://www.canon.co.uk/lenses/ef-70-200mm-f-2-8l-is-ii-usm-lens/specification.aspx


And the other lens is also 77mm based on this so should be okay:

https://www.canon.co.uk/lenses/ef-s-17-55mm-f-2-8-is-usm-lens/specification.aspx

 

[adrianday]

The answer you're looking for is here.