Hi Mike
I have a Manfrotto 681B,Its a very good monopod.I bought it for my birding/wildlife. To be used with 50D 400L however I only used it twice
I found my hand holding skills did the job.'
Anyhow it cost me $100 only used twice,someone said they wanted to buy it but never put cash into account.
If you want it its yours for $75 and will throw in postage,Just want to get rid of it,its in the observatory gathering dust (like all the other crap in there
)
BTW weight limit for this one is 12 KG-so it will be perfect for your new 5d2 and large L lenses.(in my best Arthur Daily voice
I am 185 cm tall,and no issues with height with this monopod,Mike,its a a good tall one ,never used it all pulled out.