Go Back   Home > Forums > General Interest > Everything Else > The Moving Image > Lighting and OHP
Home Forums Rules Articles Store Gallery Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Lighting and OHP any lighting ideas and ohp info

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 19th February 2005, 06:12 AM   #31
diyAudio Member
 
Join Date: Jan 2005
Location: Shreveport, LA
Man your quick! It's around 12ft or so away, but it does look darker in the pictures. I'll give it a flip around in a few, see what happens. I did play with the settings on the LCD, nothing improves the contrast problem with the colors, but it might just be a weakness in this setup. It's really ok with me, but if it could look better, then I should try. I remember looking at other peoples setups, and they looked alot brighter, so after a cleaning, and a flip of the fraynel(see if it helps), it might look alot better, if not, thats fine to. Thanks for (quick!) replys.
  Reply With Quote
Old 19th February 2005, 07:33 AM   #32
diyAudio Member
 
Join Date: Jan 2005
Location: Shreveport, LA
I flipped the lens, and did not fix my blurring problem, which I still can't figure out.

But it DID make my blurry image TEN times sharper, so it must have been flipped the other way around? In some of my 2-D fighting games, it looks like I can see lines in certian parts, but I think that might have been there all along, with the blur hiding it. In anycase, I'll take the sharpness over the blurry anyday!

Looks alot better, and little brighter, but I still haven't fixed the light leakage on this baby, so thats going to help alot to.
  Reply With Quote
Old 26th February 2005, 07:52 AM   #33
diyAudio Member
 
Join Date: Jan 2005
Location: Shreveport, LA
Someone said something about the color index not being that good using these types of OHP's, and was wondering....


would a lexan UV filter help, or worsen the problem? Doesn't it improve your color index? And I would think that these things would be shooting out tons of UV's.....
  Reply With Quote
Old 26th February 2005, 01:27 PM   #34
tjh is offline tjh  United States
diyAudio Member
 
Join Date: Dec 2004
Location: RI, USA
I put a piece of Lexan XL from Home Depot ($5) in below the fresnels. Don't know how much UV comes out of these, but figured it would be worth the extra layer of heat protection. I don't know that much about optics but I think the only thing it would improve would be to cut down on UV, not the color index.

As far as halogen bulbs go, they are supposedly very yellow in color compared to a metal halide or some other types of bulbs.
__________________
6/12/06: Redesigning everything, finally putting in the Ushio S400DD.
  Reply With Quote
Old 28th February 2005, 07:26 PM   #35
diyAudio Member
 
Join Date: Jan 2005
Location: Shreveport, LA
Ok, I'm an idiot....

Anyway, my old Apollo AI-1000 has a small turning knob on the side of it, I look inside, and nothing is connected to the knob, it's just turning in the inside with nothing on it. All my OHP has is the light bulb, it's small reflector, and the wiring, but at the top left of it, looking towards the reflection, there is a orange knob, that doesn't turn anything....

Whats supposed to be there? I don't see anything in this pic either

Click the image to open in full size.

The inside of this apollo A1-1000 looks just like the inside of mine, except mine has orange wiring instead of the blue.
  Reply With Quote
Old 28th February 2005, 08:48 PM   #36
tjh is offline tjh  United States
diyAudio Member
 
Join Date: Dec 2004
Location: RI, USA
Any chance you could put up a pic of the orange knob your talking about? The only one I know of that is any use is the one on the lens to adjust it. There are 4 other ones that were attached to the side of mine on little brackets, I believe so that one could roll film or some other long sheet across, but I'm not sure.
__________________
6/12/06: Redesigning everything, finally putting in the Ushio S400DD.
  Reply With Quote
Old 1st March 2005, 11:35 PM   #37
diyAudio Member
 
Join Date: Jan 2005
Location: Shreveport, LA
I think your right! (about the knob).

Now, I just posted in a thread about someone who wants more light from a 600watt bulb setup. And I was wondering, to make it brighter, and get the best use of the light these OHP's make, why not make some sort of custom reflector? My OHP has a little reflector, are their any ideas on how to get all the wasted light to go up?

something like aluminum wrap all around the bottom? I have no idea.

I'm guessing anything that would not reflect the light evenly would look messy and terrible, and I don't know what kind of stuff I could use.

That is, if it would even help the light output in the first place.

Bah, just wondering.

EDIT: I just noticed my reflector is rather old and dull looking. Wonder if I got a new reflector how much it would improve the light output.
  Reply With Quote
Old 2nd March 2005, 01:13 AM   #38
bodgy is offline bodgy  Australia-Aboriginal
diyAudio Member
 
Join Date: Aug 2004
Location: Australia, North Coast NSW
Quote:
Originally posted by Tritoch84
My OHP has a little reflector, are their any ideas on how to get all the wasted light to go up?
a condensor lens might help

Quote:
EDIT: I just noticed my reflector is rather old and dull looking. Wonder if I got a new reflector how much it would improve the light output.
i'd polish it first
  Reply With Quote
Old 3rd March 2005, 03:24 AM   #39
diyAudio Member
 
Join Date: Jan 2005
Location: Shreveport, LA
You just posted in another thread that these bulbs really only have an output of 2000/3000 lumens, which makes sense, as it's not as bright as some of the setups I've seen.


I guess I now have to go the expensive metal halide route I was trying to avoid. 160 bucks for a cheap MH setup for a rig that cost 80 bucks.

Oh well. Guess I'll be doing that next year when I have the funds.
  Reply With Quote
Old 29th May 2005, 07:48 PM   #40
diyAudio Member
 
Join Date: Mar 2005
Location: Texas
Send a message via AIM to tylerheatherly Send a message via MSN to tylerheatherly Send a message via Yahoo to tylerheatherly
Default Looking for pictures/scematics for the Apollo A1-1000

Hey, i was wondering if you had had any more pictures of the projectors guts or have any drawn scematics, as I took mine appart to put in another case and ended up with one extra wire.

Thanks for your help,
Tyler (about-blank@houston.rr.com)
  Reply With Quote

Reply


Hide this!Advertise here!

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Misc. ST-bulb (coke-bottle shape) tubes (and two GT-bulb) FS GordonW Swap Meet 0 4th January 2008 04:14 PM
Cooling an amp with poor cooling BAM Solid State 8 31st December 2001 05:40 AM


New To Site? Need Help?

All times are GMT. The time now is 02:50 PM.

Page generated in 0.13092 seconds (78.75% PHP - 21.25% MySQL) with 10 queries

Copyright ©1999-2012 diyAudio