CurtPalme.com Home Theater Forum

emdawgz1 · Joined: 14 Mar 2006 Posts: 7294

What setup method did you use? Did you watch Graham's video? It can get you some useful info you may not have.

dturco · Posted: Thu Jun 25, 2009 2:56 am Post subject:

Nashou66 · Posted: Thu Jun 25, 2009 3:23 am Post subject:

dturco · Posted: Thu Jun 25, 2009 12:41 pm Post subject:

Nashou thanks again.

Lets see if i understand this. Use a piece of white 3x5 card to the edge of the screen while picture is being displayed. I move that card Closer or further away from the screen till the focus is best on the card.

If I have moved the card closer to the projector then I need to to move the flapping screws inwards to adjust the lense out away from the tube face?

I also need to do this to the opposite side of the lenses compared to the screen.

So If I am looking at the right side of the screen with the card, it is the left side of the tube that gets the lense flapping?

The 9500 is still floor mounted until the NASHOU-BELLOW is installed with the Red C-Element. So are we talking this reversal for the floor mount or for ceiling mount or is it always that way? Left to right right to left corner focus?

I know these are very specific questions but the process seems to be making sense to me much more than ever before.

So either I am learning or I'm really lost. Confused

Is this covered in Graham's disc?

garyfritz · Joined: 08 Apr 2006 Posts: 7096 Location: Fort Collins, CO

I would *love* to see a clear explanation of exactly how to do the Scheimpflug on a Marquee. I've got mine "pretty good" but it was all trial and error. I never really understood what I was doing, but with enough stumbling in the dark (literally Smile

) I finally got it good enough. I mean, I understand the concept of Scheimpflug real well, and I know how the adjustments affect it. I just have no clear process to say "oh well the left side is blurry so I should focus the center then do XXX to the YYY Scheimpflug bolt and that'll fix it." I'm sure I'm not the only one. Athanasios, if you or somebody else has a clear step-by-step procedure, please write it up in excruciating detail (I'd be happy to help, I write training for a living!) and share it with the rest of us!! We all thank you!

dturco · Posted: Thu Jun 25, 2009 4:16 pm Post subject:

Well having pulled the tube assembly for the Red -C-element, I see how the adjustment screws interact very clearly now. You can move the test grids/picture in many different ways by using these adjustments. Having seen the interactions has helped me envision what needs to be done /is being done. I am not suggesting anyone pull their tubes for this alone, but If you ever do it sure does clear up a very misunderstood issue. Who knows I might get this thing right after all.

I really was mostly skipping the flapping because I plain and simple did not understand it at all. I was adjusting the screws but I had Zero idea why. Now I have an inkling. Which is better than zero Wink

Nashou66 · Posted: Thu Jun 25, 2009 6:30 pm Post subject:

stefuel · Posted: Wed Jul 01, 2009 10:40 pm Post subject:

"I need to redo this on the longbows, but like Dave its so much work i am putting it off till i get the color calibration first."

You need to do this first. Optical focus as well as electronic focus effects output. This is most obvious on blue, not as much as electronic but does happen.

dturco · Posted: Sat Oct 17, 2009 5:53 pm Post subject:

For the future readers,

Just a note for this thread. A 100" diagonal screen for a Marquee 9500 L/C with GT-17 lenses, is pretty close to as small as you can go. The GT-17 lenses were almost at the adjustment limits at this size. I have gone to a 119" diagonal screen and the lense adjustments are VERY close to the center of adjustment on the coarse focus knobs.