WIMBERLEY P-20 Plateau pour téléobjectif, Arca-Swiss Style

3.86" long, 1screw, anti-twist nubsDimensions (Overall L x W x H): 3.86 x 1.5 x 0.38 inWeight: 2.7 Oz (plate, mounting screw, stop screw), We offer a line of Arca-Swiss style quick-release plates for collared lenses. Our plates have important innovative features that distinguish them from other plates on the market.Dual Safety StopsSafety stops at the front and back of our plates keep your expensive lens from accidentally slipping out of the quick-release clamp. If you wish to use only one or neither of these stops, simply remove them with the hex key provided. Note: The two stop screws will straddle the length of most quick-release clamps. However, the stop screws do limit the amount of forward-backward adjustment available. Wimberley quick-release clamps have special channels that solve this problem. Flash Bracket VersatilityOur plates are designed to accept RRS & Kirk flash brackets as well as our own quick-release flash brackets.Double-Dovetail Cross SectionOur unique double-dovetail design allows you to attach Wimberley quick-release flash brackets to the upper or lower surface of the plate.Anti-Twist NubsThe P-10, P-20, and P-30 plates have anti-twist nubs at the back of the plate. These help to keep the plate from twisting if it is mounted with only one fastener. The unique dual-nub design (as opposed to a single continuous flange) provides better performance when butted against a curved surface. The P-40 and P-50 plates do not have anti-twist nubs because they should be attached with more than one screw.

Compatibility WarningSafety stop screws on our plates work best with Wimberley quick-release clamps. Our clamps have channels of a specific depth that go almost to the center. These channels allow a full range of forward and back motion but will not let the plate slip out if the clamp becomes a little loose. Our stop screws may or may not work well, or at all, with other manufacturers' quick-release clamps. Some clamps may have channels that are too shallow or deep for our plate stops to work effectively. Some do not have channels at all, but the stop screws may catch on the outside of the clamp sufficiently to prevent the plate from sliding through. However, fore-aft movement will be limited so you may need to use a longer plate in this situation. Arca-Swiss Z1 users: The safety-stop security feature of our plates does not work when used with the Arca-Swiss “double-decker” screw-knob quick-release or lever-release (flip-lock) clamp. We recommend replacing the double-decker clamp with our C-10AS modified clamp, or ordering the Z1 ball head without a quick-release clamp and installing our C-10AS, if this safety feature is important to you. Please contact us for details.

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