RE: Wobbly tripod mount

[Alan Chan]

If I am correct, it has the same design as A*200/4 & F*300/4.5 where the 
adaptor is tightened using 2 screws. It is not exactly a collar so it would 
never be as solid as one. The issue has also been mentioned in one of the 
Japanese lens reviiew which indicated the tripod adaptor for the 
FA*80-200/2.8 was weak. I believe, however, the newer lenses like FA*200/4 & 
FA*400/5.6 have fixed adaptors so they do not have this issue.

Regards,
Alan Chan
http://www.pbase.com/wlachan
i had a close look and test of my tripod mount collar on my FA* 80-200 
f2.8.
it's not very solid. the connection from the foot of the mount to the 
tripod
head is a lot more solid. the collar has lots of play in it, a lot more 
than
i like when shooting for highest sharpness, especially when there is some
wind. also, it means that when i am moving the camera on the ball head, i
have to hold the mounting foot to move the camera if i don't want some
return when i let go of the lens. the movement is substantial at 200mm,
almost 1/4 of the frame vertically if i am lifting up on the front of lens
via the focusing collar. how are the other FA* lenses in this regard? are
the F* and A* lenses with tripod collar mounts any better? the Sigma 50-500
has a much more solid connection to the lens. if only it were brighter and
sharper.
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