Nidelva river through Trondheim Norway

Nidelva river through Trondheim Norway
by Saaru Lindestokke                

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Using Catia (Mechanical engineering software), I tried to answer your question by retro-engineering the canon parts. I found a 3D model of a canon lens from and isolated the lens mount geometry. I compared its dimensions to the ones of my lenses and found them accurate enough. On the following view, you can see the lens mount. I used brass as ...


It's not just the weight of the camera that's a concern, but the torque that it will apply to the mounting ring on the lens (and in the camera, of course). Torque is turning force, and it's calculated by multiplying force (weight, in this case) by distance from the center of rotation. So, if we guess that your camera is 4" deep from the mount to the back of ...


The 1D Mark II was 55.5 oz. The 5D Mark III + BG-E11 grip + 2 LP-E6N batteries is about 59 oz. The heaviest flash Canon has sold in the recent past is the 600EX-RT which is 18.5 oz with batteries installed. The WFT-E8A is another 1.35 oz. Add that up and you're at 79 oz. which is about 17 oz. less than a 6 pound CCD camera. The EF mount should be able to ...


I don't have the answer for you but the answer is maybe obvious : if it were a classic mechanical problem, I would say that the lens capacity shouldn't exceed the capacity of the body (using no lens collar): If you body can support a 2 kg lens on the body mount, then the same weight is supported by the lens mount ; If your lens comes with a collar for your ...

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