Sigma 120-300 QR plate recommendation?

Is there a recommended QR plate for the Sigma 120-300 (newer collar version)? If not, what does everyone use to secure a QR plate to it eliminating rotation of the lens on plate? (I'm using a Gitzo head)

I just used regular wimberley/rrs kind of plate that I had for my 70-200mm f2.8. It wasa bit short but worked fine for use on monopod.

If I understand you correctly, you are asking what type of a plate will prevent the rotation of the foot of the tripod ring around the tripod screw.

I have not had a problem with rotation of any of my three lenses which have tripod rings (70-200mm f/4L IS, 300mm f/4L IS and 400mm f/5.6L).

I attach these lenses to standard plates made by RRS and by Giottos (I use a Giottos MH-657 QR System).

I use a RRS L-Plate when attaching a non-tripod ring equipped camera/lens to the QR clamp. This prevents the torque of the camera around the tripod screw.

However, KIRK markets an Arca Compatible lens plate for the 120-300mm f/2.8 Sigma. This incorporates a flange which is designed to prevent the lens from rotating around the attaching screw.

see: www.kirkphoto.com/Lens​_plate_for_120-300mm_f2.8_EX-hsm_html

If you don't use an Arca Compatible quick release system on your Gitzo head, you should. Kirk has a conversion system which you could use: http://www.kirkphoto.c​om …Quick-Release-Clamps.html

Thanks for the info. From the look of the Kirk plate it seems to be designed for the first version of the 120-300 handle. I'll shoot them an email to verify.

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