I have two lenses hanging from my 1Ds3 95% of the time, a 300mm f/2.8 or a 180mm macro. I'm leery about using a series of extension tubes and/or TC's
between these lenses and the camera body due to the weight of the glass and the body.
Regardless of whether I mount the body or the lens to a tripod, it seems like a lot of unsupported weight hanging off either end. Is it cause for concern?
Am considering a extra long tripod mounting plate, if such an animal exists, and bracing either the lens or the camera body...if it's necessary. What say you all?