CurtPalme.com Home Theater Forum

[Nashou66]

Hi Ray read bill blues Marquee 101 set up.

http://www.curtpalme.com/docs/MARQUEE%20MAGNETICS%20SETUP%20101%20by%20Bill%20Blue.pdf

It is a big help and can explain it better than I could

Nashou

[416ray4538]

Thanks
I'll read it a few more times tomorrow.
BTW Curt had this set working fine before he shipped it. Did I throw all these adjustments out by changing from floor mount to ceiling mount?

[Nashou66]

[416ray4538]

The link goes into some good detail for adjusting the coils and magnets. I'm not eager to make these adjustments without seeing it done first. The other adjustments seem straight forward enough and I hope these are the ones that would be affected by changing the installation. Curt set it up and ran it for a few hours so I'm focusing(pun) on what would have changed since then.
I'm using the lenses from my Ampro!
Could I have screwed up mounting them or could they be incorrect/damaged to cause a fuzzy picture?

[Nashou66]

Are the Ampro lenses HD 10's? And what were the marquee Lens's your replacing?


The straight HD 10's suck. The HD 10L's are better if that what was on there originally.

Nashou

[Curt Palme]

Dave, I think what you need to do is figure out whether you have an optical or electronic problem. both will result in poor focus.

Putting on sunglasses, look right into the tubes and check focusing on the tube face. My guess is that it's fine. Put contrast at 100, and do the astig and focusing adjustment right on the tube face.

A couple of tricks:

-defocus the middle zone of each tube slightly so that you get a circle instead of a sharp dot. Then go into the astig menu and adjust each zone for a perfectly defocused circle as compared to an oval or diagonal line.
-then go back into the focusing menu, and adjust for best focus on each zone. It's normal for more than one zone to be at 0 or 100, especially the left and right sides.
-sometimes I also use the fine crosshatch test pattern and tune for minimum line thickness rather than using the dot pattern.

Once you confirm everything is in focus on the tube faces, the rest is completely optical. The Marquee Scheimpflug adjustment is a royal PITA, but my guess is that's where your issue is.

One last thing on astig: I can set it up perfectly here, but once you ship it and you install it on the ceiling rather than the floor setup that I do here, or if you shoot it E-W instead of N-S like I've got it setup here in the shop, astig will change a bit. It also changes due to the earth's magnetic field, which is slightly different in Toronto as compared to vancouver.

[Curt Palme]

Dave, I think what you need to do is figure out whether you have an optical or electronic problem. both will result in poor focus.

Putting on sunglasses, look right into the tubes and check focusing on the tube face. My guess is that it's fine. Put contrast at 100, and do the astig and focusing adjustment right on the tube face.

A couple of tricks:

-defocus the middle zone of each tube slightly so that you get a circle instead of a sharp dot. Then go into the astig menu and adjust each zone for a perfectly defocused circle as compared to an oval or diagonal line.
-then go back into the focusing menu, and adjust for best focus on each zone. It's normal for more than one zone to be at 0 or 100, especially the left and right sides.
-sometimes I also use the fine crosshatch test pattern and tune for minimum line thickness rather than using the dot pattern.

Once you confirm everything is in focus on the tube faces, the rest is completely optical. The Marquee Scheimpflug adjustment is a royal PITA, but my guess is that's where your issue is.

One last thing on astig: I can set it up perfectly here, but once you ship it and you install it on the ceiling rather than the floor setup that I do here, or if you shoot it E-W instead of N-S like I've got it setup here in the shop, astig will change a bit. It also changes due to the earth's magnetic field, which is slightly different in Toronto as compared to vancouver.

[416ray4538]

I'm pretty sure they are. HD10s. I'll check that for sure when I get home from work tonight.
Just how bad do you mean by "suck"

[416ray4538]

"look into the tubes" lenses removed?

[Nashou66]

[Curt Palme]

Actually, I do it with the lenses on. It magnifies what's on the tube face, making adjustments easier.

[Curt Palme]

Actually, I do it with the lenses on. It magnifies what's on the tube face, making adjustments easier.

[AnalogRocks]

[AnalogRocks]

[416ray4538]

They are HD 10
As soon as I get some time I'll get to it.

The astig magnets:
3 rings: 2 pole, 4 pole, 6 pole
The ring moves about the centre of the tube, the knob changes the relative positions of the magnets in that ring so that the position of the ring has less or more effect?
So far so good?
Just out of curiosity:
If the magnets and coils were set up throwing a picture onto the north wall, then the pj was turned to throw the picture onto the east wall, same distance, same angle, these adjustments would be WAY off, and the picture would suck?
I think I'm getting it.
How scary would it be to upgrade the lenses

[Curt Palme]

Remind me Ray, those tubes were the new VDC ones, right? I wouldn't start messing with the tube astig rings at this point. Even if they were used tubes (can't remember what I sold you, I'd have to look it up), I always set the magnetic astig pretty damn close, even though they might be out a touch due to the earth's magnetic field, etc.

I just don't want you to add potential complications by tweaking something that isn't causing an issue.

As for swapping lenses, it's a piece of cake.

[Curt Palme]

Remind me Ray, those tubes were the new VDC ones, right? I wouldn't start messing with the tube astig rings at this point. Even if they were used tubes (can't remember what I sold you, I'd have to look it up), I always set the magnetic astig pretty damn close, even though they might be out a touch due to the earth's magnetic field, etc.

I just don't want you to add potential complications by tweaking something that isn't causing an issue.

As for swapping lenses, it's a piece of cake.

[416ray4538]

So stick to the adjustments that can be made from the remote + lens barrels+ sheimphlug?
I was hoping you'd say that. The others seem daunting since there's not the same ease of starting over.
As for how scary the lens upgrade is I was thinking $$$$$
Everything moves slower than it should these days. Ie) kid in college so my toys get the back seat a lot.

[416ray4538]

You mentioned that the sheimphlug could be a PITA. When your feeling poetic , could you expand on this a little?
I thought it was kinda soft on the Ampro what with 3 screws and springs and no defined distance between the tube faces and the back of the lenses

[Nashou66]

[416ray4538]

[Curt Palme]

Stick with the HD10s. The Ls will give terrible corner focus, they're only good to 72" diagonal.

[Curt Palme]

Stick with the HD10s. The Ls will give terrible corner focus, they're only good to 72" diagonal.

[Nashou66]

Yep what Curt said according toy our screen size.

Nashou

[416ray4538]

Turned the contrast and bright down. Looked into the lenses. Adjusted stigmators and focus until I can comfortably see the little patterns that make up the lines in the crosshatch. I wear progressive bifocals: after a few seconds deliberately looking into the guns I'm aware of very little outside of the spinning sensation in my head and everything is double;blue is especially fun. I'm guessing that I'm not alone here.
Its watchable now;yes more focus later. Just posting to say thanks to Curt and Nash and AR and all.
Curt: you mentioned something about the sheimphlug being more fun than necessary to adjust on this model. I wish you would expand on that. The manual says loosen this one tighten that one. Any tricks you could share gotta help.
Once again THANKS