| Author |
Message |
tri_joel
Joined: 03 Jul 2007
Posts: 646
Location: Northern Virginia
|
| Posted: Wed Oct 22, 2008 9:05 pm Post subject: Lense Question |
|
|
|
I just glanced through the lense sticky, so if the answer is in there I didn't find it. I would like to move my BG1208 quite a bit closer to the screen. I have a bulkhead with supply and return ducts running where the projector needs to be now. Can I change lenses to accomplish this? Right now the front of the pj is 12' from the screen, I need it to be closer to 9' to be in front of the bulkhead. I could also move it back to about 15' to be on the other side of the bulkhead. Are either of these an option?
|
|
| Back to top |
|
 |
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
| Posted: Wed Oct 22, 2008 9:13 pm Post subject: |
|
|
if you move it closer you need to make the raster or image bigger on the tube face so not sure how much room you have to work with on that but for a 3 foot move i doubt you have any room left. Now if you move it back you'll have to make the raster/image smaller on the tube face to fit on the screen because as you move the PJ back the image will get larger so you need to compensate with the tube face image size. Is there a way you can re-route the duct work behind the PJ?
Athanasios
_________________
Don't blame your underwear for your crooked ass~ unknown Greek philosopher
"Republicans believe every day is the Fourth of July, but the Democrats believe every day is April 15." --- President Reagan
One Smart Dog!!!
Marquee High Performance Bellows now shipping!!
Marquee Modifications and Performance Enhancement
Marquee C-element and Bellow removal
|
|
| Back to top |
|
|
tri_joel
Joined: 03 Jul 2007
Posts: 646
Location: Northern Virginia
|
| Posted: Wed Oct 22, 2008 9:16 pm Post subject: |
|
|
|
I thought about moving the ductwork. Nothing is impossible, but this is close. I was hoping there is a way to leave the raster maxed and change to a shorter through lense? I can live with the pj where it is, it's just very low.
|
|
| Back to top |
|
|
Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
|
| Posted: Wed Oct 22, 2008 9:19 pm Post subject: |
|
|
|
HD-144 lenses will give you a shorter throw but you'll need adapters.
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
|
| Back to top |
|
|
Zebu Fellenz
Joined: 21 Dec 2006
Posts: 2567
|
| Posted: Wed Oct 22, 2008 9:35 pm Post subject: |
|
|
| Nashou66 wrote: | I should have asked what lens' he has now, he might already have those already, and when i put the HD 144 on my marquee i only moved the PJ up about 9 inches.
Athanasios |
Good point,
I was thinking the 144 lenses wouldn't change the throw enough but I thought it was worth a shot.
|
|
| Back to top |
|
|
Person99
Joined: 09 Mar 2006
Posts: 4899
Location: Flower Mound, TX
|
| Posted: Wed Oct 22, 2008 9:51 pm Post subject: Re: Lense Question |
|
|
| tri_joel wrote: | | Right now the front of the pj is 12' from the screen, I need it to be closer to 9' to be in front of the bulkhead. I could also move it back to about 15' to be on the other side of the bulkhead. Are either of these an option? |
If the 12' is properly set up, then no, you can't get down to 9'. But, lets start with the simplest question--what size image are you trying to throw?
_________________
Dave
A train station is where the train stops. A bus station is where the bus stops. On my desk, I have a work station....
|
|
| Back to top |
|
|
tri_joel
Joined: 03 Jul 2007
Posts: 646
Location: Northern Virginia
|
| Posted: Thu Oct 23, 2008 1:07 pm Post subject: |
|
|
The PJ has HD8 Rev. B lenses. My screen is a Draper 4:3, I believe it is about 96" wide for a 120" diagonal. I'm not really sure as I've never checked.
_________________
www.vawinesnob.com
|
|
| Back to top |
|
|
|
|
