OpenEye iPhone MDVR - Manual (Page 7)

PTZ control is available on cameras that are set up as PTZ on the
connected recorder. On PTZ enabled cameras, you can zoom in
and out and pan.
Note Some transmission latency will be visible when
controlling PTZ on non-decoding IP cameras due to I-
frames being sent in non-decoding mode.

Zoom out
– pinch your fingers together.

Zoom in
– pinch your fingers apart.
Tip The camera will zoom in or out farther the faster you
move your fingers when zooming in and out.

Pan left
– drag your finger left.

Pan right
– drag your finger right.

Pan up
– drag your finger up.

Pan down
– drag your finger down.
Tip The faster you move your fingers when panning, the
faster the camera will move.