DSLR Remote Pro can remote control the lens optical zoom in live view when using the Canon PZ-E1 power zoom and a compatible zoom lens and camera model. The zoom setting can be adjusted when using the live view dialog or in photo booth mode when live view is active.
The Canon PZ-E1 power zoom is a separate accessory that clips on to the Canon EF-S 18-135mm 1:3.5-5.6 IS USM zoom lens and is powered by four AAA batteries.
Compatible lenses and cameras
The Canon PZ-E1 power zoom lens attachment is only compatible with the Canon EF-S 18-135mm 1:3.5-5.6 IS USM lens. It will work on any camera that accepts EF-S lenses, but only the following camera models support remote control of zoom when shooting tethered:
Canon EOS 90D
Canon EOS 80D
Canon EOS 77D
Canon EOS 800D/Rebel T7i
Canon EOS 250D/200D Mark II/Rebel SL3
Canon EOS 200D/Rebel SL2
Live View Operation
When the live view window is displayed when using a compatible camera with the Canon PZ-E1 power zoom a zoom control will appear under the live view image and the zoom status will be displayed in the window title bar:
Drag the zoom slider to the left to zoom out (wider focal length) or to the right to zoom in (longer, telephoto focal length). Move the slider a short distance from its mid setting to zoom slowly or move it more to increase the zoom speed. When zooming the live view window's title bar will display "Power Zoom: Driving" followed by one or more chevrons indicating the speed and direction of the zoom.
Status messages displayed in the window title bar:
"Power Zoom: Ready (wide)" - The lens zoom is at its widest setting (18mm) and zoom can be controlled remotely
"Power Zoom: Ready (tele)" - The lens zoom is at its longest telephoto setting (135mm) and zoom can be controlled remotely
"Power Zoom: Ready" - The lens zoom is somewhere between its widest and most telephoto settings and zoom can be controlled remotely
"Power Zoom: Driving >>>" - The lens is zooming in
"Power Zoom: Driving <<<" - The lens is zooming out
"Power Zoom: Manual zoom selected" - The MZ/PZ switch on the PZ-E1 is set to the MZ position and the zoom cannot be controlled remotely. Move the switch to the PZ position to enable remote control of zoom.
"Power Zoom: Battery low or missing" - The four AAA batteries in the PZ-E1 unit or low or missing
"Power Zoom: Too hot" - The PZ-E1 unit is too hot and needs to cool down before it can be used
Photo Booth Operation
The PZ-E1 can also be controlled using keyboard shortcuts or touchscreen actions in photo booth mode when the ready screen is displayed (stills or video) and live view is active.
Keyboard shortcuts (active in ready screen when live enabled):
Ctrl+Alt+cursor up - optical zoom in using PZ-E1
Ctrl+Alt+cursor down - optical zoom out using PZ-E1
Ctrl+Alt+cursor right - digital zoom in
Ctrl+Alt+cursor left - digital zoom out
Touchscreen actions (active in ready screen when live enabled):
"Power zoom in" - optical zoom in using PZ-E1
"Power zoom out" - optical zoom out using PZ-E1
"Electronic zoom in" - digital zoom in
"Electronic zoom out" - digital zoom out