Above: Canon original tripod mount – Below: Berlebach’s tripod mount (image courtesy of photoscala.de)
German manufacturer Berlebach offers an alternative tripod mount socket for Canon’s EF 200-400 f/4 (price & specs), EF 400mm f/2.8 (price & specs), EF 500mm f/4 (price & specs), and EF 600mm f/4 (price & specs) lenses.
Berlebach’s tripod mount is more compact than the original one and should also reduce vibrations.
Press release (machine translated):
Canon Telephoto Adapter Berlebach
Berlebach ® Stativtechnik in Mulda has developed a compact foot for tripod mounting of telephoto lenses from Canon, on the one hand have been much smaller than the original foot and on the other hand, allows the use of UniQ / C and Arca Swiss-compatible quick-change systems. The price of the Tele-adapter is (RRP including VAT) EUR 49.
With the telephoto adapters for Canon 400/600 mm ( http://www.berlebach.de/?bereich=details&id=514 ) and the original Berlebach-release plates are the Canon telephoto lenses 4,0 / 200-400; 2,8 / 400; 4,0 / 500 4,0 / 600 on all UniQ/C- and Arca Swiss-compatible quick-change systems usable. The replacement of the original foot-flung through the telephoto adapters Berlebach with its considerably thinner design reduces space requirements, which can be the Canon telephoto lenses pack much easier for transport. In addition, possible oscillations are determined by the compactly built Adapter Berlebach significantly reduced and improved handling achieved by an optimized center of gravity.
To use the adapter, the four screws securing the original Canon-foot must be solved with an M3 hex wrench. With the same screws Berlebach adapter is then fastened to the lens. After the release plate with two 1/4 “or a central 3/8″ Münzschlitzschraube (s) is fastened to the adapter. When using an original Berlebach-release plate adapter accesses as in the profile of the plate so that the combination can be completely rotationally fixed to the axis of the lens on a tripod head. Depending on the length of the release plate, this is for balancing both when mounted on the adapter, as well as the respective position in the quick-change system according to forward and backward movable. When using AC drives from other manufacturers may result in restrictions on the twisting safety.