Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)
In Phils "Skully" thread he just said that he thinks you might be ok with anything up to the canon 2.8 300mm IS, but after that is pushing it. It was a pretty informal comment, but I just read it, so I thought I would share. This is the Canon AL mount.
Please read his thread for confirmation on all that.
Also factor in expected torque - if you're mounting to a vehicle it's gonna be different than a one of shot from a tripod. Good general rule is that if the manufacturer made a support for it it's worth using.
AL or Ti probably not the biggest deal, the lens side of the mount is far weaker than the camera side in this case.