A couple OHP questions.

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I noticed 2 types of OHP's were mentioned in the FAQ, but they are not defined. How can I tell the difference between a transmissive and a reflective OHP? I don't want to buy the wrong one. Sites don't label them nor do Ebay sellers.

Also, I'm looking at a couple different units as long as they are both transmissive. One of them is 6000 lumens while the other is a high end 11,000 lumens that uses metal halide blubs. Am I going to notice a big difference in picture quality or is it not worth the higher price for the unit and the blubs?

Just for reference, I'm planning to buy a panel with 640x480 res, 14 Million colors, active TFT matrix. I will use it for DVD's mainly, but probably play some XBox on it too.
 
The reflective OHP are the ones that have a very thin base as the base does not contain the lamp. The lamp is overhead and shines down on the object being projected. From what I understand these are not useful for projection.
 
Wait a sec....

1) Does this mean that transparent LCD panels for use with transmissive OHP perform worse than any LCD panel for use with reflective projectors?

2) So instead of using LCD panels with reflective OHP, can we use CRT monitors, even though they are somewhat cumbersome??

3) How much heat does the different light bulbs generate, such as Metal Hallide? Is a simple ventilation system enough for heat dissipation? Wouldn't that heat damage the LCD monitor??

Thanks for answering those newbie questions ......

:clown:

Cheers
 
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Hmm, I dont know what happened, my post doesnt show.... But here goes again:

1) Reflective OHP can display any kind of lcd panel but perform worse than transmissive OHP which need transparent LCD panel... Am I right?

2) How much heat does the different bulbs disperse (like MH bulbs)? Is a simple fan ventilation all is needed for heat dissipation? Wouldn't that heat damage the LCD screen?

Thanks
 
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