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stridsvognen
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| Posted: Sun Oct 13, 2013 5:31 pm Post subject: |
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| draganm wrote: | | stridsvognen wrote: | The 8500 will actualy look better with 1080P in my opinion.. .. so no scaling needet...  |
some people prefer 1080P, the 8500 will certainly do it. I know Craig Rounds recomends 1080P to his Marquee 8500 customers. To my eyes though the ANSI contrast seems to suffer with so much scan-line overlap. In other words the dark parts of the screen in mixed light/dark scenes start to go Gray(er). Have you noticed this?
At any rate with a BD player, you can set up 2 channels on the Marquee and toggle back and forth between either of those (or even 1080i of the flicker doesn't bother you.) |
Im sure your right, but i found my 8500 able to do a quite nice 1:1 pixel resolution with 1080P 60hz, and i would guess the change in ansi contrast is more about the change in light output changing resolution, than the actual resolution, so if you calibrate the 2 resolutions to the same values, do you still see a difference in ansi contrast.?
I did a cheep trick masking my 8500 tubes to 16:9 and block the stray light betwen tubes, that changed the ansi contrast so much that i was sure i had bumped gamme up from 2,24 to around 2.4-2.5.. but no it was still the same, just improved ansi contrast.. Price.. 10$ and 1-2 hours of work.
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Synnöve
Joined: 12 Oct 2013
Posts: 11
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| Posted: Sun Oct 13, 2013 7:23 pm Post subject: |
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I'll order some bncs and drive this thing from my computer, test and see what works. 1920x1080 @ 48hz would be good enough for most of my needs, just worried it won't resolve the lines very well. I have to admit, I've been very spoiled by my fw900 and its massive bandwidth and resolving capability.
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stridsvognen
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| Posted: Sun Oct 13, 2013 7:35 pm Post subject: |
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| Synnöve wrote: | | I'll order some bncs and drive this thing from my computer, test and see what works. 1920x1080 @ 48hz would be good enough for most of my needs, just worried it won't resolve the lines very well. I have to admit, I've been very spoiled by my fw900 and its massive bandwidth and resolving capability. |
I think you will find 48hz on a CRT projector compleetly useless.. Ill recomend 1080P 60 hz on the 8500, better go down in resolution than framerated under 60hz.
but you dont need to worry.. the only difference in a 8500 vs 9500 is the tubes and lens arangment.. The boards are identical.
So most of the difference is ansi contrast, color filtering, and how good the lenses can focus/ resolve, specially in the corners.
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Wes Rus
Joined: 08 Dec 2007
Posts: 4
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| Posted: Sun Oct 13, 2013 8:27 pm Post subject: |
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Synnöve, Sounds like you've not had the chance to play with or experience a CRT projector before. If you want to come over and check out my G70, let me know. It'll give you an idea as to what you're in for. There is a lot to this hobby and it's not for the faint at heart. You will have to learn a lot of information that is quickly becoming obsolete.
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Synnöve
Joined: 12 Oct 2013
Posts: 11
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| Posted: Sun Oct 13, 2013 9:27 pm Post subject: |
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| stridsvognen wrote: | I think you will find 48hz on a CRT projector compleetly useless.. Ill recomend 1080P 60 hz on the 8500, better go down in resolution than framerated under 60hz.
but you dont need to worry.. the only difference in a 8500 vs 9500 is the tubes and lens arangment.. The boards are identical.
So most of the difference is ansi contrast, color filtering, and how good the lenses can focus/ resolve, specially in the corners. |
Really? My FW900 (a 24" 16:10 crt monitor) shows 48hz just fine. I alternate between using 48 and 72hz for watching 24p material (I find 48 picture to be brighter, albiet with more flicker of course). Is this because the flicker is just too intense?
I'm not too interested in 60hz, as I would be using the pj with 24p material, and I have no desire to deal with pulldown issues and judder, hence my desire to run at 48hz if 72 is beyond the bandwidth limits.
So you're saying all I'd need to do to upgrade the unit to a 9500lc is swap out the tubes and lenses?
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stridsvognen
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| Posted: Sun Oct 13, 2013 9:51 pm Post subject: |
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| Synnöve wrote: | | stridsvognen wrote: | I think you will find 48hz on a CRT projector compleetly useless.. Ill recomend 1080P 60 hz on the 8500, better go down in resolution than framerated under 60hz.
but you dont need to worry.. the only difference in a 8500 vs 9500 is the tubes and lens arangment.. The boards are identical.
So most of the difference is ansi contrast, color filtering, and how good the lenses can focus/ resolve, specially in the corners. |
Really? My FW900 (a 24" 16:10 crt monitor) shows 48hz just fine. I alternate between using 48 and 72hz for watching 24p material (I find 48 picture to be brighter, albiet with more flicker of course). Is this because the flicker is just too intense?
I'm not too interested in 60hz, as I would be using the pj with 24p material, and I have no desire to deal with pulldown issues and judder, hence my desire to run at 48hz if 72 is beyond the bandwidth limits.
So you're saying all I'd need to do to upgrade the unit to a 9500lc is swap out the tubes and lenses? |
Yes you can upgrade to a 9500LC changing the tubes and lense arengment, but at the prices CRT projectors sell for its not worth the trouble.. If your lucky you will find a low hour 9500LC Ultra for less than 1000$
If you display is more bright with 48hz over 72 hz it sounds to me like you might have a bandwidth problem,, should be the other way around.
but if 48hz dont bother you it wont bother me that you use it.. 
I get sick looking 48hz on mine.
I think you should pick up the invite to see another CRT projector setup.. This is not a plug and play hobby.. its a massive lot of stuff to understand and master before you have a perfect setup and calibrated CRT projector.
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Tim in Phoenix
Joined: 21 Oct 2006
Posts: 4409
Location: Phoenix
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| Posted: Sun Oct 13, 2013 9:53 pm Post subject: |
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[quote="Synnöve"] | stridsvognen wrote: |
So you're saying all I'd need to do to upgrade the unit to a 9500lc is swap out the tubes and lenses? |
You can do that, best to get tubes with nine inch magnetics and covers, however the fiberglass nose piece you have now is cut out wrong to fit onto nine inch lenses, those sit higher and farther apart.
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Synnöve
Joined: 12 Oct 2013
Posts: 11
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| Posted: Sun Oct 13, 2013 11:23 pm Post subject: |
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I do not think it's a bandwidth problem as the fw900 handles 140mhz (manual states max res as 2304x1440 @ 85, though it's optimal is 1920x1200@85). I'd wager it's a persistence of vision situation; my pupils probably open more due to the sum light in a frame being less vs. 72 or 120hz, so it appears brighter perceptually speaking (120 hz makes the picture a tad less "bright" as well, compared to 72).
I'd like to accept the invite but my schedule is rather dense... maybe next week or so. I understand the magnitude of this hobby; I've read about CRT projectors for years, not to mention messing with my trinitrons, being involved in the audiophile and android device hobb- obsessions. One reason I want to go with CRT (Until OLED screens or an affordable LCoS projector that lacks sample-hold) is the potential for video fidelity not to mention that I love to tinker and obsess over my new toys.
Will post some pictures tonight once I get it powered up.
*Maybe I will hold on to this unit and procure some 9" tubes down the road (if not buying a 9500) when an opportunity arises.
Last edited by Synnöve on Sun Oct 13, 2013 11:49 pm; edited 1 time in total
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stridsvognen
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| Posted: Sun Oct 13, 2013 11:32 pm Post subject: |
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Be carefull..
You might find yourself addicted, spending a fortune on a lumagen Radiance, Moome card, tubes, and spare boards..
I seen it happen.. 
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Synnöve
Joined: 12 Oct 2013
Posts: 11
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| Posted: Sun Oct 13, 2013 11:52 pm Post subject: |
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I imagine I will get addicted to the PQ, but I'm a very cheap individual so I'll probably leave all playback operations to a PC with a VGA out. I imagine the RAMDACS on modern video cards are up to snuff, plus MPC-HC + MADVR results in excellent scaling for lower res sources.
That being said, there is room to improve concerning the tubes and a few other features... you're probably right.
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Mon Oct 14, 2013 1:12 am Post subject: |
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mate if you don't mind turning a few bolts and pulling a few plugs, i'll buy the 8500 off you minus tubes and lenses to save on shipping to Australia ... else if you do upgrade to 9" tubes i call dibbs on the case!!! I'm going to be sticking with an 8" machine till digital catches up
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Mon Oct 14, 2013 1:48 am Post subject: |
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| Synnöve wrote: | | stridsvognen wrote: | I think you will find 48hz on a CRT projector compleetly useless.. Ill recomend 1080P 60 hz on the 8500, better go down in resolution than framerated under 60hz.
but you dont need to worry.. the only difference in a 8500 vs 9500 is the tubes and lens arangment.. The boards are identical.
So most of the difference is ansi contrast, color filtering, and how good the lenses can focus/ resolve, specially in the corners. |
Really? My FW900 (a 24" 16:10 crt monitor) shows 48hz just fine. I alternate between using 48 and 72hz for watching 24p material (I find 48 picture to be brighter, albiet with more flicker of course). Is this because the flicker is just too intense?
I'm not too interested in 60hz, as I would be using the pj with 24p material, and I have no desire to deal with pulldown issues and judder, hence my desire to run at 48hz if 72 is beyond the bandwidth limits.
So you're saying all I'd need to do to upgrade the unit to a 9500lc is swap out the tubes and lenses? |
Its true but you also need the mounting hardware for the 9inch tubes due to them being farther apart I know as I recently swapped out my 8inch ac optics tubes for 9inch lc optics tubes and have been in crt bliss ever since
Now I ain't saying the 8inch tubes are bad they are pretty darn good and great if mint(mine has wear on the green)
The conversion will also need a astig board as the 9500lc sets have dynamic astig adjustment
Its pricey but dang well worth the upgrade so use the 8inch tubes now and save up for the 9inch tubes as they are worth every penny
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crt king of black
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Mon Oct 14, 2013 1:52 am Post subject: |
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| mx83toy wrote: | | mate if you don't mind turning a few bolts and pulling a few plugs, i'll buy the 8500 off you minus tubes and lenses to save on shipping to Australia ... else if you do upgrade to 9" tubes i call dibbs on the case!!! I'm going to be sticking with an 8" machine till digital catches up |
You still want my 9500 chassis? I was going to put my 8inch tubes on it to test it but I will remove them if you still want to get the chassis
I am wanting that case  as I like the color
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crt king of black
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mx83toy
Joined: 14 Dec 2012
Posts: 322
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| Posted: Mon Oct 14, 2013 4:07 am Post subject: |
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That sexy red case will defiantly allow me to void the spouse acceptance factor completely ... just saying  bigE the 9500 and 8500 have astig control dont they???
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Mon Oct 14, 2013 4:10 am Post subject: |
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| mx83toy wrote: | | That sexy red case will defiantly allow me to void the spouse acceptance factor completely ... just saying bigE the 9500 and 8500 have astig control dont they??? |
Would a black case do the trick??(if yes I have a black case)
My 9500 does have the astig board the 8110+ does not I think the 8500(both ac and lc versions) have the astig board
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crt king of black
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Synnöve
Joined: 12 Oct 2013
Posts: 11
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| Posted: Mon Oct 14, 2013 5:11 am Post subject: |
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Well no pictures tonight as I wasn't able to procure a 9 pin serial cable. I'll have to try again tomorrow.
Concerning all the offers: at this point I'll only sell the machine if I'm getting my investment out of it. I have a very tight schedule and don't want to spend a lot of time parting it out. Maybe at a later date.
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Mon Oct 14, 2013 5:14 am Post subject: |
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| Synnöve wrote: | Well no pictures tonight as I wasn't able to procure a 9 pin serial cable. I'll have to try again tomorrow.
Concerning all the offers: at this point I'll only sell the machine if I'm getting my investment out of it. I have a very tight schedule and don't want to spend a lot of time parting it out. Maybe at a later date. |
I ain't asking for the whole projector just the shell I wi trade a good set of 8inch tubes for it or a black case
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crt king of black
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Synnöve
Joined: 12 Oct 2013
Posts: 11
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| Posted: Mon Oct 14, 2013 5:17 am Post subject: |
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But the set has perfectly fine 8" tubes already, and I don't have any use for a black case.
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Mon Oct 14, 2013 5:21 am Post subject: |
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| Synnöve wrote: | | But the set has perfectly fine 8" tubes already, and I don't have any use for a black case. |
Don't you want spare tubes?
These have the yoke, mounting hardware and HD-8 lens (complete package)
I put 9inch tubes in mine and don't need the 8inch tubes now
If no pm me on what you would take for the case
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crt king of black
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