Canon Vb-C60 NETWORK CAMERA VB-C60 Operation Guide - Page 163

Creating Web Pages for Video Distribution Distributing Still Images to Mobile Phones Command zoom v Explanation Specify the viewing angle of the camera (horizontal direction) in units of 0.01 degree. Example:Viewing angle of 50 degrees Zoom = 5000 Viewing angle of 5 degrees Zoom = 500 Specify the image size in one of the following formats: QQVGA QVGA VGA v=jpg: 160 x 120 v=jpg: 320 x 240 v=jpg: 640 x 480 Tip As for pan, tilt and zoom, a relative position from the current position can be specified using "d" indicating the current position. Example: Pan 10 degrees to the right from the current position Pan = d+1000 Tilt 5 degrees downward from the current position Tilt = d-500 Narrow the viewing angle by 2 degrees Zoom = d-200 Widen the viewing angle by 2 degrees Zoom = d+200 Also, a ratio of the current viewing angle can be specified using "v." In this specification method, set a ratio based on the current viewing angle being 100. (One half the viewing angle corresponds to 50, while twice the viewing angle corresponds to 200.) Example: Pan to the right by the viewing angle (= 1 screen) from the current position Pan = v+100 Tilt downward by one half the screen from the current position Tilt = v-50 Halve the viewing angle Zoom = v+50 Double the viewing angle Zoom = v+200 4-15