Hey Everyone,
I read the PDF, and I've browsed around a little bit on here...
but some of these questions may have been asked before...if so, I'm sorry!
If you would be so kind as to direct me to a previous post, I would be most grateful.

Ok, here goes:

Question 1: Have any on this board built a projector with automatic keystone correction?
My personal use for a projector is for an entertainment act, and so it must be able to travel
and be setup in a new location easily.

Question 2: I noticed on one of the members project thread, that he measured somewhere
around 300-400 lumens from his projector. The picture of his projections looked pristine.
Other manufacturers advertise in the range of 2000 ANSI lumens. Why is their rating so much
higher, and what does this mean to one who is building their own projector?

Question 3: My final, and most obscure question is, has anyone tried using a smaller LCD screen
to allow for a smaller projector? There are a lot of inexpensive 7" LCD screens on the market. Portable
DVD players too! Has anyone tried using anything smaller, or is there a reason why this wouldn't work?

Sorry if these questions seem so basic!
Thanks in advance...
-Daniel

#2 . Manufacturers give the maximum Ansi rating with everything turned up to max levels. While this technically is the "max" lumens, it is unwatchable. When commercial projectors are calibrated for the best picture the lumens measured are usually around 400-500 Ansi Lumens.
250-300 lumens will look excellent in a light controlled theater room and this can be achieved with the 400 watt LL light Kit, Pro Reflector and LL Pro Lens Kit.

#3 Lot's of members here have used 5" Psone Lcds, 5.6" Dvd Players and 7" Dvd players. Do a search in the Plog area and you will find them.

Tescorp builds his cases so the field fresnel is 'hung' from the top edge, and therefore gravity 'swings' it relative to the orientation of the case for keystone correction. From the PLOGs I've read, several others (can't remember names) have also done gravity or other mechanical auto keystone.


All I can say about this is if you go down the portable DVD player route you may be limited to only playing DVDs from the unit itself on your PJ. You may not be able to interface a VGA or component input etc for use from other sources.