Noticed my projector makes a noise that sounds like a lens focusing. Like on my digital slr camera when it auto focuses you can hear it moving.
well when I fast forward video it really makes a lot of "movement" sound... sometimes if the scenes change brightness like changing camera angles I can hear the projector "re focusing"
1. is this normal
2. is fast forwading video and making these really rapid changes bad for the projector
3. what is actually causing this... what is the mechanism in the projector doing this, since the focus is manually set?
ps. i have the sanyo z2000