Help - Search - Members - Calendar
Full Version: video?
Lumenlab > Audio Video Sciences > Projector Builder > Projector Technical Support
tw0f0ur
Hi, i really want to know what a projector looks like not in just a still frame,

can someone just take a video of their projector running, and how the screen looks and everything, pictures dont do justice sad.gif

thanks
Shrivel
a photo is probably going to be a closer representation than video would be in this case. It would take a pretty expensive set of optics to be able to capture decent video of the projected image of our PJs.
tw0f0ur
QUOTE (Shrivel @ Nov 27 2005, 12:23 AM) *
a photo is probably going to be a closer representation than video would be in this case. It would take a pretty expensive set of optics to be able to capture decent video of the projected image of our PJs.



why wouldnt you just be able to do it with a regualr video camera,

i just want to make sure that it looks better than the one that toms hardware makes out of an overhead projecotr


http://www17.tomshardware.com/cgi-bin/downloads.m?id=13

theirs the video that they made..
Shrivel
QUOTE (tw0f0ur @ Nov 27 2005, 05:44 AM) *
why wouldnt you just be able to do it with a regualr video camera,

i just want to make sure that it looks better than the one that toms hardware makes out of an overhead projecotr


Because a regular video camera can capture neither the full resolution of our images, nor the differences in brightness levels that would aid in distinguishing the relative brightness between two projectors. Video cameras, especially consumer models, are designed to operate under "typical" circumstances where you've got either sunlight or room lighting. Even a good commercial projector can't compete with a basic 100w light bulb in terms of lumen output.

Basically, what I'm saying is that just because a video of a PJs output looks better than another, doesn't mean the actual output will be better. This is true for still cameras as well, but to a much lesser extent.
magel
QUOTE (tw0f0ur @ Nov 27 2005, 05:44 AM) *
why wouldnt you just be able to do it with a regualr video camera,

i just want to make sure that it looks better than the one that toms hardware makes out of an overhead projecotr
http://www17.tomshardware.com/cgi-bin/downloads.m?id=13

theirs the video that they made..

That projector is made with a overhead projector although it will work I have build one of those it defenitely not as good as the lumenlab projection system the colors aren't not as bright You are right its not as expensive. I would say if you want save money its not the way to go. Even if you have to waite a little while until you have the money you will be a lot happyer
sav8or1
QUOTE (Shrivel @ Nov 27 2005, 05:09 PM) *
Because a regular video camera can capture neither the full resolution of our images, nor the differences in brightness levels that would aid in distinguishing the relative brightness between two projectors. Video cameras, especially consumer models, are designed to operate under "typical" circumstances where you've got either sunlight or room lighting. Even a good commercial projector can't compete with a basic 100w light bulb in terms of lumen output.

Basically, what I'm saying is that just because a video of a PJs output looks better than another, doesn't mean the actual output will be better. This is true for still cameras as well, but to a much lesser extent.


I just went to the Bon Jovi concert. They let me bring in my camera. Bon Jovi always has a very large projection screen. I took video as well as pictures. It was dark in the arena yet the video came out just as good as the pictures.

Maybe this evening i will take a quick vid.
tw0f0ur
cool thanks
sav8or1
Hope this helps. In person the image is much brighter. A light leak at the bottom of the screen(wich you can see in the vid) washed out the image. Also the vid looks grainy. It is not grainy at all.
sav8or1
OK... I don't know what the deal is.... I have tried six different ways to attach the file and it just won't go.

Not sure what good an attach file function is if it won't attach a file.
sav8or1
Lets try this one more time. Keep in mind the actual projection is much better.... but you asked for vid... here it is.

Disregaurd.... I give up.... I'll try to get some help loading this freakin vid.
Yoder808
I've got a pretty good quality video on a Da-Lite high power at my buddies. It is quite good. what is your email address?
tw0f0ur
sav80r1

just send the video to my email addrees please,


Venom908@optonline.net
Yoder808
Just sent 4 vids and four pics... Hope you got broadband,and you mailbox will hold it all...

P.S. it is of an Anime called Madory Days(i think). That is what he was watching on his new screen. Also, all those pics taken on AUTO with NO exposure control tweeking, or ISO changes at all, on a Canon A80. If that doesn't sell ya, well, sorry flapjack...
vroom
I've shown this video of my pj before.

Right-click, save as:
http://sio.midco.net/skyeg/vroompjdemo.mp4
tw0f0ur
yoder im sorry i didnt get the email, yea i have broadband and my inbox is unlimited i think

and thanks vroom
sav8or1
Thats a better vid than mine. By the way.... I tried to email it to myself and it didn't work. I think it's my crappie computer.
Yoder808
try now...
tw0f0ur
thanks yoder
Shrivel
QUOTE (sav8or1 @ Nov 27 2005, 07:17 PM) *
I just went to the Bon Jovi concert. They let me bring in my camera. Bon Jovi always has a very large projection screen. I took video as well as pictures. It was dark in the arena yet the video came out just as good as the pictures.

Maybe this evening i will take a quick vid.


I guess I'm not being clear. Sorry about that. I'm not saying you CAN'T take video of a projector, just that you can't use video to gauge the quality of a projected image or make comparisons between two videos.

BTW, the projectors used at concerts cost 60,000 - 80,000 dollars (or more) and are designed purely for high light output. They are hundreds of times brighter than our DIY projectors and a video camera could capture that light level without a problem.
sav8or1
QUOTE (Shrivel @ Nov 28 2005, 02:36 PM) *
I guess I'm not being clear. Sorry about that. I'm not saying you CAN'T take video of a projector, just that you can't use video to gauge the quality of a projected image or make comparisons between two videos.

BTW, the projectors used at concerts cost 60,000 - 80,000 dollars (or more) and are designed purely for high light output. They are hundreds of times brighter than our DIY projectors and a video camera could capture that light level without a problem.


If you saw the seats I was in, you would wonder how my eye balls captured the light blink.gif laugh.gif
Yoder808
Well, What do you think of the video I sent you?
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.
Invision Power Board © 2001-2009 Invision Power Services, Inc.