Contemplating getting the 70-200 L. Due to cost not sure whether I want the F4 IS USM or the F2.8 USM (NON IS) I know the F4 has no Tripod mount. Was wondering if the almost double cost for the F2.8 USM is worth it. Therefore I want to know what others are using.......
Have 2 questions.
1). Which do you use the F4 IS USM or 2.8 USM or 2.8 IS USM.
2). If you have the F4. Did you buy the Tripod mount or is it not required due
to the smaller size of this lens or do you use the tripod mount on camera
instead or is it too heavy.
Thanks
Lar

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