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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Wed Feb 22, 2012 2:37 am Post subject: |
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Didn't say you said he was a bad guy, but he gets that rep around here and AVS. I think he just comes across poorly on the forums. Not everyone is good at using the forums. I know a world class theater designer was telling a great speaker manufacturer how good he is on the forums and how difficult it is for him. The theater designer may be the best at what he does, but admitted that he has a difficult time on the forums.
Anyway no big deal. I wouldn't sweat it.
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kabuby77
Joined: 28 Mar 2011
Posts: 147
Location: Italy
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| Posted: Wed Feb 22, 2012 9:20 am Post subject: |
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| Jeremy112 wrote: | | The brightness of the 1292 is really the only concern I would have. ... |
I suggest a maximum screen size of 100" 16/9 with standard fabric. If you use high gain models, even more
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Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
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| Posted: Wed Feb 22, 2012 2:22 pm Post subject: |
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| ecrabb wrote: |
So, I have two questions:
1) What is it about AC optics that would make it somehow superior in terms of sharpness?
2) What specific example do you refer where AC is sharper than LC?
Thanks,
SC |
1: Beats me. I see them, they are sharper. The reasoning is forgotten, the original discussion of this occurred for me about 10 years ago, sorry....
The caveat being, it has to be a GOOD AC machine, one that is capable of a high degree of sharpness, which is pretty much only an NEC, and more specifically, pretty much only the XG's are capable of producing sharper images than the majority of LC machines. 1272's are terrible for sharpness, one of the worst I've ever owned(they're only ES, never sharp...), and I've owned about half a dozen 127x's, including a NOS 1272. That one looked good at 800x600, but still wasn't "sharp"....
Some AC Barco's are also capable of very good sharpness, but they are not "run of the mill" Barco's. If they have the high bandwidth video components and the high resolution AC tubes, you can get a very sharp image from some Barco's, but finding that combo is difficult. Most Barco AC units use the same lacklustre tubes as Marquee's...
2. Doug Baisey, the noted NEC expert from AVS Forum days gone by backed up my observations when he posted that every time the military needed a very sharp image, he provided AC machines. When sharpness was not the PREEMINENT concern, he'd spec the LC machines.
I've always been a skeptic, reading on the internet, years ago I realized *most* people provide opinion based on what they're selling, or speculation based on OTHER peoples observations. I found that to be an unreliable way to get to really know anything about projectors especially. SO I bought every example of every projector I could and actually set them up and lived with them for a time. I've had every projector, and pristine examples of them too, except a G70, and a Mitsubishi VS1281. Those two projectors have eluded me for over 12 years now...Every G70 I've ever encountered was too dear for me, and the one lot of Mits's I ran across came at a time when I just couldn't afford them.
I suspect the Mits would likely be one of the best out of all projectors, seeing their lens and focus system, but until I actually OWN one, it would just be speculation and I try not to indulge in that, generally...
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Wed Feb 22, 2012 3:17 pm Post subject: |
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[quote="Elaine Benes"] | ecrabb wrote: |
I suspect the Mits would likely be one of the best out of all projectors, seeing their lens and focus system, but until I actually OWN one, it would just be speculation and I try not to indulge in that, generally... |
What is it about the lens and focus system that would make this pj so appealing?
Regarding your G90; IYO what contributes more to it's foucs abilities the lens or EMF?
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Jeremy112
Joined: 28 Sep 2006
Posts: 2649
Location: Fond du Lac, WI
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| Posted: Wed Feb 22, 2012 4:26 pm Post subject: |
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I'm curious, does anyone here have screenshots from a 1292 that they have had or have? I know screens cant replace seeing the image in person, but it gives me a good idea on most aspects of the image quality (save for brightness and contrast/colors).
_________________
When I'm asking for a Model number, that doesn't mean I'm asking for a nude photo with your number on it 
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Elaine Benes
Joined: 25 Apr 2006
Posts: 1416
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| Posted: Wed Feb 22, 2012 5:03 pm Post subject: |
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[quote="jbmeyer13"] | Elaine Benes wrote: | | ecrabb wrote: |
I suspect the Mits would likely be one of the best out of all projectors, seeing their lens and focus system, but until I actually OWN one, it would just be speculation and I try not to indulge in that, generally... |
What is it about the lens and focus system that would make this pj so appealing?
Regarding your G90; IYO what contributes more to it's foucs abilities the lens or EMF? |
Their brochure intrigued me, especially the dichroic coated lenses, no other crt maker took that approach to color accuracy:
http://www.curtpalme.com/docs/Mitsubishi1281_Brochure.pdf
The G90 has unparalleled EM focus, 6 pole electronic astigmatism and complete zone electronic focus controls. You can make virtually ALL the dots on the screen round, THEN you can focus them all virtually perfectly, for all colors. Even the last generation XG didn't have as complete an electronic focus complement of controls. The lenses are somewhat incidental, to me, I recall a "white paper" of all the lenses we commonly compare, and ones like the HD-8 Rev B that everyone likes to slag, were rated at the same line pairs/mm focus ability as the vaunted HD144/145's... I'm not certain, but I think all the HD family of lenses has the same resolving capability rating as expressed in lppm . . . . The info's likely still out there, but I'm too lazy to look it all up again...so maybe I'm wrong and just remembering incorrectly....
For lens focus, I think its more important to have your throw distance and shiempfluge set properly than to have extra expensive lenses, but that's just my opinion, and I'm not selling any lenses right now, maybe if I had a bunch of lenses to sell I'd think they were a LOT more important than I do...haha...
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Wed Feb 22, 2012 5:54 pm Post subject: |
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That Mitsu has colored green and blue lens, but NOT red
_________________
projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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HaydnG90
Joined: 22 May 2006
Posts: 1356
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| Posted: Wed Feb 22, 2012 6:21 pm Post subject: |
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And 7" tubes. Hardly the last word in resolution and output capabilities. 
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jbmeyer13
Joined: 03 Dec 2010
Posts: 1135
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| Posted: Wed Feb 22, 2012 7:11 pm Post subject: |
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IMO, one tricky aspect of comparing image sharpness of PJ's over the last 15 years is the evolution of the source material. In the mid to late 90's Laserdisc was the reference, then DVD and now BD. As the source improves, I'd presume that the ability to spot differences in focus from one PJ to the other becomes more apparent. However, once you throw into the mix the massive improvement in video processors it becomes quite a task. Remembering how something looked is all relative;DVD on my 9500LC looked really good until BD came along:-)
I asked the question regarding the lens vs EMF because many feel the major benefit of a stock G90 (compared to a stock 9500LC) is it's ability to focus. However, once the 9500LC has the same lens I have been told the playing field is more level.
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Projector: Modded 9501LC ULtra- MP VIM, Vold VNB, ETECH LVPS, Silver VIM Cables, HD10F's & a V1 case!
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