| Re: Keystoning image, Loss of quality?
To answer your question, 'yes' keystone effects quality.
The effects can be clearly seen in a bandwidth display test.
However getting a projector mounted perfectly is not always possible when the room is used for general duties. Quite often a compromise has to be made, requiring loss of best setup for the PJ.
The trick is to find the range of positions where you don't cause ill effects that you discribe and position the pj to be within this range. Then ask yourself if this fits the room for it's other uses?
Some things to consider as you do this though, is the screen level, virtical, square to the Pj; Is the pj level square to the screen. If you get where I am going you understand that alignment starts with the fundimentals. Ignore them and the result gets harder to resolve.
Laser levels and or string lines measuring tape and a spare pair of hands are the tools needed, checking levels and squareness can solve alot of ills.
I might add that most projectors have a natural central position of about 1/4~1/3 from the lower or upper edge(depending if you are roof mounted or not). Being set at the edge at a relatively close range of 10ft will make things hard to resolve.
A trick though is to angle the bottom of the screen up, drop the angle of the PJ down. A couple of degrees would be hard to notice but may remove the shape issue. Depends on how far you need to go.
Have a careful read of your manual for 'best pos'tion' then see how you are setup.
goodluck.
Light changes what it is doing depending if we are looking or not. Considering we only see this as a reflection of the past....what is it really doing now?  |