AVS Club Gold
Join Date: Oct 2003
Location: Northern Virginia Projector: G90 CRT
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|Originally posted by marcorsyscom
I borrowed the Epson PowerLite 715c LCD (1200 ANSI lumens, 1024x768, $5699) from work to see how a high-lumen projector would compare to my Electrohome Marquee 8000 CRT.
Here's the exact same camera (4MP Canon S45), on the exact same screen (12'x8' drywall painted with Sherwin Williams Ultra Bright White Matte), with the exact same frame from "Fifth Element" (I have 2 copies, LCD has the "Superbit Edition"). LCD from my laptop at 1024x768. CRT from my HTPC at 1024x768. Both using WinDVD 4.
Tripod, AWB, and auto-exposure.
Give it time to load. It should cycle between 4 images (I used PSP Animation Shop)...
- me standing in front of the screen with both projectors turned on
- screen with both projectors on (but without me)
- just the LCD (higher image)
- just the CRT (lower image and slightly larger)
My Marquee is set at Brightness=40 and Contrast=40.
256 color GIFs aren't the best for showing screenshots, but I couldn't do an animated JPG. I'll post larger JPGs separately.
My CRT is slightly stretched because I like the widescreen view, but I don't like the wasted space on the screen, so I stretch it taller. I didn't realize how much taller I was stretching it until seeing how skinny Bruce's face looks here.
The LCD is 6' further back behind the CRT, but I ran out of cord space, so I couldn't get the image any larger. So if anything, it should be about 10% brighter because the image isn't as large.
The LCD image is higher because from the back of the room, I had to get it to shine over my theater seats. I also had to change my usual tripod position because the bulb left a very distinct shadow on the screen when I had it set in front, so I moved it further back and slightly offset. The tripod is usually set right under my ceiling mounted CRT.
I don't want this to be a LCD bashing thread, but I was impressed with the relative brightness of my CRT (with only 225 ANSI lumens vs the Epson's 1200 ANSI lumens!)
I know this LCD projector is 2001 technology, but it's the best I could borrow, and my CRT is from 1995. The LCD's screen door effect was also worse than I remembered from when I'd borrowed the Epson before I bought my CRT. I took some screenshots of SDE too.
Man, I love my Marquee!
|Your file seems to be bleeding together - so cannot really tell anything|
|use the manual white balance setting if available, defined by shining a D65 reference onto the screen beforehand|
|my preference would be to set exposure for the brightest image and use that setting for the other projector. If the latter then produces a camera picture too dark to be meaningful, then revert back to autoexposure but state the exposure settings chosen by the camera. This info is normally stored in the jpeg itself and is accessible by checking the files properties from within Windows.|
|Originally posted by Stumbo
Im surprised we hav'nt heard anything from QQQ yet?
|Now if you had have made the comparison between the $23,000 (new) 8000 and a $13,000 1280 x 720 Marantz S3 projector, you might have an interesting comparison.|