AVS Forum banner
Status
Not open for further replies.
1 - 20 of 25 Posts

·
Premium Member
Joined
·
16,963 Posts
Discussion Starter · #1 ·
I took some shots today with my digital camera. The pictures may not relay the quality of this setup but it shows the Isco Panamorph combo works.


This is not a permanent install but a quick temporary setup

for this lesson.


I'm using the Malata progressive dvd player feeding the Seleco HT200 projector.


My screen is a home built 9 feet wide 235:1 scope ratio painted battle ship gray. The color is close to the color used by Stewart on their GrayHawk model but a little darker. No Stewart did not copy me http://www.avsforum.com/ubb/smile.gif


Heres the screen.
http://www.avsforum.com/ubb/image_uploads/screen.jpg



Because the Seleco allows you to create custom aspect ratios and store them into memory I have choose to leave the

lens in place at all times choosing different ratios from the projectors memory.

This is called maintaining height and changing width.


In doing so no matter what aspect ratio used you are always maintaining the projectors full vertical resolution.

4x3 would suffer from using the least horizontal resolution verses 16x9 that would loose not as much. Of course 235:1 material uses the projectors full 800x600.


Here is the lens combo in use:
http://www.avsforum.com/ubb/image_uploads/combo.jpg


Heres a dvd intro in 4x3:
http://www.avsforum.com/ubb/image_uploads/4x32.jpg


Here is a 16x9:
http://www.avsforum.com/ubb/image_uploads/16x92.jpg
http://www.avsforum.com/ubb/image_uploads/16x9.jpg



Here are a couple of shots in scope filling the whole width of the screen.
http://www.avsforum.com/ubb/image_uploads/2351.jpg
http://www.avsforum.com/ubb/image_uploads/scope2.jpg


The camera images are very low resolution and do not do justice to show how good this setup really looks.

You cannot see any pixel structure from 10 feet away and detail and light output are great no matter what the aspect ratio while 4x3 is a little soft.


This will become a permanent install in our showroom so anyone passing through can see just how good a little 800x600 projector can look when maximized on a 9 foot wide screen.


------------------

Alan Gouger

Thanks for supporting AV Science.
www.avscience.com


[This message has been edited by Alan Gouger (edited 08-19-2001).]


[This message has been edited by Alan Gouger (edited 08-19-2001).]
 

·
Registered
Joined
·
873 Posts
This is too cool.


For those of us without the resources, these kinds of 'lessons' as you call them are invaluable.


Thanks for taking the time to set this up!


Kelly
 

·
Registered
Joined
·
2,403 Posts
Alan,


What are the specs on that projector??


Mike


------------------

Let's go out to the lobby.

Let's go out to the lobby.

To have ourselves a snack!

[email protected]
 

·
Registered
Joined
·
315 Posts
Alan,


Thanks for the virtual demo, this si very similar to what I am considering doing, but I am haveing trouble getting advice on making my own custom screen. Any suggestions, or can you point me to some resources for such a DIY project?


Thanks,


Nils Luehrmann


------------------

WARNING: If I expressed an opinion that you might disagree with, please remember it is ONLY an opinion and "your mileage may vary".

My DVD Collectionc>
 

·
Premium Member
Joined
·
16,963 Posts
Discussion Starter · #5 ·
Mike



DLPTM Type: Proprietary sealed optical Engine based on 1 DMDTM Chip. Contamination proof

Resolution: SVGA (800 x 600 pixels);

Focus: motorized

Zoom: motorized

Elevation: manual

Keystone adjustment: up to 27° (optical: +/-10°; digital: +/-17°)

Screen size (diagonal) vs. Throw Distance:

60" - min. 2,8m - max. 3,85m

80" - min. 3,74m - max. 5,14m

100" - min. 4,67m - max. 6,42m

Picture size: 50-250 inches diagonal.

Aspect ratio: 4:3, 16:9, anamorphic, letter box plus 3 user adjustments

Brightness: 800 ANSI lm;

Brightness Uniformity: better than 95%

Contrast Ratio (full On / full Off): > 600:1

Colour wheel: RGB + white segment


ZOOM LENS

Throw Ratio: 2.4-3.2:1 - f#: 2.7 (wide), 3.3 (title)

Focus Range: 2.2-13.5 m

LAMP

Power Consumption: 120W UHP

Lamp Life Time : 6000 hours


ELECTRONICS

Horiz. Scan freq.: 15-80KHz (max horizontal freq. corresponding to UXGA, 60Hz)

Vert. Scan freq.: 48-100Hz

Video standard: PAL B,G,H,I,M,N,60, SECAM, NTSC 3.58 &4.43 automatically selected

HDTV: ATSC (480p, 720p, 1080i); PC Graphic standard: VGA, SVGA, XGA, UXGA (1600 x 1200 pixels)

De-interlacer: Proprietary chip on board, optimized for video images

Color Temperature: 3 preset color temperatures selectable by remote control

Video Enhancements D.T.I. and C.T.I. always active, noise reduction

Sharpness Adjustment

• Comb Filter

• Luma-Choma Delay Adjustment by OSD

• Hue Adjustment on NTSC

• Microvision Anticopy Pulses Cleaner


INPUTS/OUTPUTS

1 Composite video via RCA connectors

1 S-VHS via mini Din 4 pin

1 RGBHV via Dsub 15 (PC input)

1 x RGBS/YCrCbS via 4xRCA connectors

1 Remote Input Interface, type Microcross P&DA (EVC), Standard VESA

1 x RS232 on Dsub 9 pins connector

1 x jack 12V power output, active when the projector is ON

1 x jack 12V power output, active when 16:9 format is selected (max 12V power output 100 mA )


GENERAL SPECIFICATIONS

Control: Via RS232 serial interface. Software can be upgraded via RS232 serial interface

Power Consumption: 170 W max

Mains voltage range: 100 - 240 Vac, -/- 10%

Fuses: 3,15 A T, 5 x 20 mm

Mains frequency range: 48/62 Hz

Cabinet dimensions (W x H x D): 13,8†x 6,6†x 12,5†(350x167x318 mm)

Packaging dimensions (W x H x D): 15,7 x 6,9†x 15,9†(400x275x405 mm). Made by reinforced cardboard, inner filled with anti-shock cardboard material.

Weight: 11 lbs (5 Kg.)

Packaging weight: 17,6 lbs (8 Kg.)



------------------

Alan Gouger

Thanks for supporting AV Science.
www.avscience.com
 

·
Registered
Joined
·
2,403 Posts
WOW! Thanks, Alan!



Mike


------------------

Let's go out to the lobby.

Let's go out to the lobby.

To have ourselves a snack!

[email protected]
 

·
Premium Member
Joined
·
16,963 Posts
Discussion Starter · #7 ·
Nils


There have been plenty of DIY articles in the screen forum.

Just do a search using the word DIY and you should be over whelmed with material.

I'm still perfecting my screen.


There are things I have learned that I would do different next time around. I prefer a curved screen because to me it looks more theatrical but its that much harder to make.



------------------

Alan Gouger

Thanks for supporting AV Science.
www.avscience.com
 

·
Premium Member
Joined
·
16,963 Posts
Discussion Starter · #9 ·
Federico


Yes perfect focus.

The idea behind a curved screen is to have all points of the screen equal distance back to the lens.


I've had good luck and like this screen very much.

I find myself always going back to it.



------------------

Alan Gouger

Thanks for supporting AV Science.
www.avscience.com
 

·
Registered
Joined
·
4,129 Posts
I thought that curved screens wouldn't work with digital projectors? Yea Ha! I got me another home theater project to work on!




------------------

The button is labeled "Play", not "Pay". STOP the MPAA!

Our Silent Angels

Please visit The Manny Page!
 

·
Registered
Joined
·
4,129 Posts
Well, my wife is happy. Does this mean that such a projector is not "preferable" on a flat screen? Is there a thread that discusses this in more detail (I don't want to highjack this one)?

Thanks!


Edit: Here's one thread on the subject.


------------------

The button is labeled "Play", not "Pay". STOP the MPAA!

Our Silent Angels

Please visit The Manny Page!


[This message has been edited by Man E (edited 08-20-2001).]
 

·
Premium Member
Joined
·
16,963 Posts
Discussion Starter · #12 ·
Man E

This projector is perfectly suitable for flat and curved. It was really designed for flat but the on axis of the lens also allows the use of curved screens.




------------------

Alan Gouger

Thanks for supporting AV Science.
www.avscience.com
 

·
Registered
Joined
·
3,557 Posts
Hi Alan,


Nice pic's. Question... is that stairstepping I'm seeing in your photos because of the camera or something else? I'm assuming the camera...(look at the hood and shoulder of the orange jacket)


Mike
 

·
Premium Member
Joined
·
16,963 Posts
Discussion Starter · #15 ·
Mike it is caused from the camera. Look at the picture of the lens.


The image on the screen is very bright and smooth. Excellent colors.


Grant


Both are on par with each other.

I mesaured the same contrast and light output from both lens.

So it comes down to do you need to maintain your current width. If so go with the Panamorph.

Otherwise if a shorter throw is needed the Isco will do the trick.



------------------

Alan Gouger

Thanks for supporting AV Science.
www.avscience.com
 

·
Premium Member
Joined
·
16,963 Posts
Discussion Starter · #16 ·
A curved screen will work with digital projection but you need a projector that shoots its image on center of the lens as it exits the projector. Most use a 15% angle. This is so if you table mount it it will shoot upward onto the screen and vice versa if ceiling mounted.

The only projector I know of that does exit on center is the seleco.

It also has a lens shift which lets you fine tune it.



------------------

Alan Gouger

Thanks for supporting AV Science.
www.avscience.com
 

·
Registered
Joined
·
6,227 Posts
I take it this is just a stand in until the 2.35 Pannie ships ???


I have been toying with the idea of a 2.35 instead of the 16x9 Pannie and having less resolution for 16x9 as opposed to 2.35 but don know if I could live with the trade offs... In a way it seems safer to have trade offs in both directions (4:3 and 2.35:1) rather than all one way...


------------------

[email protected]
HTPC without using windows... GUI Front Ends for Home Theater
 

·
Registered
Joined
·
22 Posts
Where are the photos Alan ?
 

·
Registered
Joined
·
1,265 Posts
I thought I was alone. Don't see the pics either.
 
1 - 20 of 25 Posts
Status
Not open for further replies.
Top