>From your experience does a digital projector stand-up to an 'analog' >projector in terms of resolution, brilliance, etc? I would assume that all >the effects that require two 'analog' projectors can be done with 1 digital >projector with the appropriate software. Is this assumption correct? Have >you done this?
Technically a digital projector will never have the resolution of an analog projector. It's the old "film" vs. "digital" debate. :-) My projector as an example produces images which are 1024x768 pixels. That is only 786K pixels... not even a megapixel. An analog projector, like film, is resolving tens of millions of pixels. :-) If you looks close at the projected image you can see an effect known as "screen door". This is a grid-like pattern in the image caused by the pixels in the LCD. Some projectors are worse than others. As for brilliance, that is measured in Lumens and basically the brighter the projector the more it costs. I seem to recall my projector is in the 800 lumen range. It is plenty bright for a darkened room. There are projectors available having brightnesses in excess of 3500 lumens which are capable of being viewed in a brightly lit room. The cost of projectors starts to sky-rocket as the resolution and brightness increases. My $1900 Sanyo is a budget model for sure but is more than adaquate for home use.... and professional use for that matter. A 2500-3500 lumen projector with a resolution of 1024x768 can easily climb into the $4000-6000 price range. The cost of bulbs is another factor with digital projectors. Even a cheapo projector like mine uses a $300 bulb. Some bulbs are $400-500... obviously the brighter they are the more they cost. :-) I'm not quite sure what effects you might be thinking of. Things like fades and swipes can easily be accomplished with software. I have not done any effects, I simply show images sequentially just like I would slides using a single projector. One other thing I didn't even mention about digital projectors is the multi-media capabilities. Not only can I play videos from my PC using MPEGs and AVIs but I can also attach a DVD player or VCR to the Composite or S-Video channel on the projector and show live video in 4:3 or 16:9 in addition to still images. Something impossible to do with my Kodak Carousel. :-) I recommend cruising the web sites of vendors who deal specifically in projectors, read all the reviews you can and do a lot of research before purchasing. -- John * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
