WIMBERLEY AP-603 (01) PDF Document

The WIMBERLEY AP-603 Replacement Foot serves three main purposes:

1. Added Stiffness over the factory tripod mounting foot connected to a lens plate, reducing flex and vibration.

2. Functions as the Arca-Swiss style quick-release plate for your lens.

3. Creates a more ideal geometry for using your lens on the Wimberley Sidemount Head and Sidekick, allowing the lens to balance optimally.

The WIMBERLEY AP-603 is a quick-release replacement foot for the following Canon lenses:

• 300 F2.8 IS II

• 200-400 IS

• 400 4.0 DO IS II

• 500 F4 IS II

Weight: 5.2 oz

Product Dimensions (L x W x H): 4.8″ x 1.7″ x 1.4″

Materials: Anodized 6061 Aluminum, Stainless Steel

The package for the WIMBERLEY AP-603 contains the following items:

• Arca-Swiss Style QR Plate: AP-603 Replacement Foot (Qty 1)

• Mounting Screws: M4 x 14mm Socket Head Cap Screw (Qty 4)

• Safety Stop Screws: M3 x 6mm Socket Head Cap Screw (Qty 2)

• Hex Key: 3mm T-Handle (Qty 1)

• Hex Key: 2.5mm (Qty 1)

Follow these steps to install the WIMBERLEY AP-603:

1. Remove the factory foot from the lens. Use the enclosed hex key to remove all four small mounting screws on the underside of the lens foot.

2. Attach the AP-603 plate to the lens using the four enclosed M4 x 14mm screws.

3. Drive the screw in until you first meet resistance, then turn it about 30° farther to establish appropriate, but not excessive, torque. Do not over tighten; it is possible to shear the head off the fastener with the hex key included.

4. Install safety stop screws. Safety stop screws are not required, however they keep your lens and camera secure when using a compatible QR clamp.

The WIMBERLEY AP-603 has a double dovetail cross-section. The upper dovetail allows you to attach Wimberley Flash Brackets as well as other 3rd party quick-release style brackets.

Yes. The 3/8 and 1/4 inch holes in the middle section of the plate can be used to attach the foot directly to the threaded stud of a monopod or other lens support equipment, without needing a quick-release clamp.

The WIMBERLEY AP-603 comes with two safety stop screws and a 2.5mm hex key. These screws are intended to be screwed into the small bottom threaded holes in the front and back of the foot to serve as stops that prevent the foot from accidentally sliding out of the quick-release clamp.

If you choose to use both stops, you must open the jaws of the quick-release clamp wide enough to load your lens from the top (top load) instead of sliding it in. Top loading is less convenient, but you can be certain that your lens will not slide out of the clamp.

The safety stop screws on the WIMBERLEY AP-603 work with most 3rd party quick-release clamps, but there are some compatibility considerations.

For the safety stop feature to work correctly, your clamp must either:

• Have safety stop channels. These channels allow a full range of forward and backward motion but will not let the plate slip out if the clamp is inadvertently loosened. This is the recommended setup.

• Be short enough to allow the foot to straddle the clamp.

Clamps that do not have channels and are too wide to be straddled by the safety stop screws will not work. These types of clamps (or those without adequate clearance) will insecurely clamp the foot at an angle.

Specifically, the safety-stop security feature of this foot does not work when used with an Arca-Swiss “double-decker” quick-release clamp like the Arca-Swiss Z1.