Some projectors have a function in their menus that allows you to control the
deinterlacer. Generally the deinterlacing function will have two settings:
Automatic and Film mode.
In Automatic mode, the deinterlacer automatically detects what source is being
fed into the projector (either film based or video-based material), and adjusts
deinterlacing accordingly. In Film mode, the projector will only perform interlacing
based on film sources. In other words, it will perform the
reverse 3-2 pulldown operation.
Although most projectors only use the highest-quality deinterlacers, DVDs are not
always encoded correctly and can fool the deinterlacer into thinking that it is
receiving a different signal than it actually is.
If you think your projector might be having problems with a specific DVD, you can
choose Film mode to guarantee the projector is processing the DVD signal correctly.
It's important to note that the deinterlacing option will only be available if a
projector detects a 480i signal.
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