Lumens VC-B20U - I Would Like to Zoom In;Out Images; I Would Like to Adjust the Focal Length

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6.5 I would like to zoom in/out images
6.5.1 Adjust image size
1. Press [Fast +] on the remote control to zoom in images.
2. Press [Fast -] on the remote control to zoom out images.
6.5.2 Fine-tune image size
1. Press [Slow +] on the remote control to zoom in images.
2. Press [Slow -] on the remote control to zoom out images.
6.6 I would like to adjust the focal length
6.6.1 Auto tune
1. Press [AF] on the remote control to adjust automatically.
6.6.2 Manual focus
1. Press [MF] on the remote control to turn on the manual focus
function.
2. Press Focus - [+] or Focus - [-] to adjust.