Collar Lens Plates

[arctictroy]

I recently purchased a Canon 100-400mm IS and a 70-200mm 2.8 IS for my 30D with battery grip. I have a Giottos 8160 tripod with a 1001-652 ballhead/QR system. I'm not quite sure how to attach the collar to the head. The QR plate that comes with the Giottos 1001-652 is great to mount the 30D with my 16-35mm lens but it is not long enough or very stable for my larger lenses. Can anyone help?

Thanks in advance!
Troy

[brucep]

I have the same lenses, Troy. Everything I have that I might attach to a tripod (including those lenses) has a Quick Release plate (in my case it's Manfrotto). In my case with the Manfrotto heads, I have to put the QR plates on facing the 'wrong' way on the lens collars because the base of the collar extends too far forward to mount them the usual way. It becomes second nature to mount the lenses backwards compared to mounting the cameras.

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