User Manual

Using the Optional Safety-Stop Screw
Figure 6
Top Load
(Required with Safety Stop screws)
Safety Stop Channels We recommend using clamps with safety stop channels.
These channels allow a full range of forward and back motion but will not let the
block slip out if the clamp is inadvertently loosened.
Your Shifter Block comes with a safety stop screw and a matching hex key. This fastener is intended to be screwed
into the small threaded hole in the bottom of the block (Fig. 6) to serve as a stop that prevents the plate from
accidentally sliding out of the quick-release clamp. If you opt to use this feature, you must open the jaws of
the quick-release clamp wide enough to load your sidekick from the top (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.
Your clamp must have
safety stop channels
3rd Party Clamp Warning: Our safety stop screws work with most 3rd party quick-release clamps, but clamps that do
not have channels and are too wide to be straddled by the safety stop screws will not work.
Arca-Swiss Z1
The safety-stop security
feature of this block does not work
when used with an Arca-Swiss
“double-decker” quick-release clamp.
OR
be short enough to allow the
block to straddle the clamp
Clamps without safety stop
channels (or those without
adequate clearance) will
insecurely clamp the block
at an angle
Safety Stop
Channels
If this safety feature is important to you, we recommend replacing
the clamp with a Wimberley C-12 QR Clamp.