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This topic comprises 2 pages: 1 2
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Author
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Topic: Which new 1080 projector to buy for BluRay projection
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Celine Negrete
Film Handler
Posts: 70
From: Nevada City, CA
Registered: Nov 2009
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posted 06-01-2011 11:37 PM
Ok, we need to get a better projector for those times when we screen BluRays at our theatre (which is happening more frequently). This digital/video realm is one that I really do not know much about.
The details: Screen is 6 feet tall and ~12 1/2 feet wide when in scope mode (we have side masking). So, it is about 13 1/2 feet diagonal. The projector we have right now is located on a shelf that is in the auditorium bolted to the ceiling with a throw of 27 feet.
We only have 62 seats, so we are a fairly small auditorium.
We have had two recommendations: -Panasonic AE4000U (~$2000) or, as a step up from the Panasonic: - M-Vision Cine 260-HC (maybe around $4000?)
But, if I start to read reviews my head begins to swim. And, of course, the Panasonic is for a home theatre so the reviews are mostly written by folks with a slightly smaller screen or shorter throw (but not always)!
Anything would be a step up from what we have had for a few years now: Panasonic PT-AX 100U. But, BluRays were not that common in the past (for us).
Looking for suggestions. Remember....I am a newbie in this digital world, so simpler explanations are appreciated. Thanks!
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Bajsic Bojan
Expert Film Handler
Posts: 190
From: Ljubljana, Si, Eu
Registered: Aug 2008
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posted 06-02-2011 07:57 AM
i am sure you'll get alot of suggestions, but first off take these things into consideration:
throw is 27ft and 16:9 fits on 11ft wide screen (scope movies will be letterboxed probably), that means you need a lens with a throw of ~2.5. most home cinema projectors have only one lens, usually in the 1.4-1.6 throw range, which means you'd probably have to reposition the projector much closer to the screen (another 10ft). projectors with long throw lenses are usually more expensive, and each lens is usually in the neighborhood of 1.5k$, depending on model.
If you have a decent screen, i would not worry much about light output at that width, a 270W lamp in the second projector would suffice, i'd not use less than 250W lamps. Also check how much these cost as you can be unpleasantly surprised after you buy a good pj on sale at a great price, but then realise lamps cost a fortune.
Also note, the first one is LCD, the second is single chip DLP. Each technology has some benefits over the other. I cannot for one stand single chip DLP because of rainbow effect. Newer models of single chip DLPs i've seen are somewhat better than those from pre-2008, but they come with a higher price tag (for instance the panny PT DZ series). for smaller screens if you cannot go 3chipDLP i'd rather have LCD.
From personal exp, have been happy with small Optoma PJs, small Epson pjs, small Mitsubishi, smaller Sanyos. There's a big market for these, but as said, if you have a throw of 2.5x the screen, it really narrows the field and certainly doubles/triples the investment.
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Scott Jentsch
Phenomenal Film Handler
Posts: 1061
From: New Berlin, WI, USA
Registered: Apr 2003
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posted 06-02-2011 05:32 PM
According to the Projection Calculator on ProjectorCentral.com:
http://www.projectorcentral.com/Panasonic-PT-AE4000U-projection-calculator-pro.htm
You're only going to be getting about 4 fL on a 1.0 gain screen from that projector with the numbers you provided. The calculator is probably taking the Cinema 1 mode into account when you select the Primary Use as "Video/Games" so that 4 fL figure is probably pretty close.
As a result, unless you've got a really high-gain screen, I think you're going to be throwing a very dim image on the screen.
Home theater projectors aren't torches to begin with, but you can do some things to help the situation.
An anamorphic lens will throw some extra light, but you'll need a projector and possibly a video processor to do the necessary hoop-jumping. Not a huge deal, just something that you need to make sure is working through the entire chain.
There are projectors that produce more light, and I would definitely be looking in that direction. While more expensive than the $2000 Panasonic, you should get a better looking image on the screen.
The M-Vision projector you mentioned has better numbers in the Projection Calculator when it is set to "Data/Text" as the Primary Use, but it sinks to 5 fL in "Video/Games" so you're close to the Panasonic again.
Something like the JVC DLA-RS50 is going to pump out more light, but the price is going to set you back quite a bit more. My guess is that an RS40 would do pretty good as well.
Running any projector in its high-lamp mode will increase brightness at the expense of bulb life and with some projectors, proper colors.
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