Projector questions

Started by fjacks Jun 20, 2005 6 posts
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#1
----- HDTV Magazine Tips List -----

A question for Joe Azar or anyone who may know.

Need to purchase a projector for a fellowship hall. As I understand it the
projector will be mounted from the ceiling about 21 ft. away from a
motorized 9 X 12 screen. Is this enough info to determine how many lumens
are needed? The light can be completely controlled by a dimming system. We
will use it to do powerpoints, movies, and television via cable. Any other
particulars I should be considering?

Jack


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#2
----- HDTV Magazine Tips List -----

There are not enough details provided to advise you further. Ideally, I would want to see the setup. I strongly recommend that you
pay a professional consultant to inspect the installation and help you make the decision. It should not take more than an hour of
their time, if you provide them with well thought out and detailed usage plans. Things that you have not noted should include: type
of screen fabric, what windows are there and where, viewing distances and sight lines, proposed mounting height of the screen,
locations of room lights that may be used during viewing, budget, desired resolution, etc.

You must understand that the lumen statistics published by most projector manufacturers are a farce and cannot be relied upon for
reference or comparisons. Real world light output characteristics are seldom used in product marketing. It would be useful as well
for you to understand that most data projectors are not configured for good video and film reproduction. Characteristics that can
differ include: optics, fan noise, video processing, 2:3 pull down detection, inputs, black level and shadow detail, motion
rendering, etc., etc. There are very good reasons why home theater models are so much more expensive than equivalent presentation
models that may be based on the same chassis, from the same manufacturer.

Best regards and beautiful pictures,
Alan Brown, President
CinemaQuest, Inc.
www.cinemaquestinc.com

"Advancing the art and science of electronic imaging"

-----Original Message-----
From: HDTV Magazine On Behalf Of
Jack
Sent: Monday, June 20, 2005 3:38 PM
To: HDTV Magazine
Subject: Projector questions


----- HDTV Magazine Tips List -----

A question for Joe Azar or anyone who may know.

Need to purchase a projector for a fellowship hall. As I understand it the
projector will be mounted from the ceiling about 21 ft. away from a
motorized 9 X 12 screen. Is this enough info to determine how many lumens
are needed? The light can be completely controlled by a dimming system. We
will use it to do powerpoints, movies, and television via cable. Any other
particulars I should be considering?

Jack


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#3
----- HDTV Magazine Tips List -----

Jack,

I have been out all day and just saw your email. The reply from Alan below
is correct: it is always best to get someone on site to inspect and make
recommendations. Lumens are overemphasized leading people to believe that is
the only factor in projectors, much as pixel count is in still digital
cameras. Always, the darker the room, the better the picture. What room
looks dark may not be when you look at the screen. It always is surprising
to most to see how light the screen is in a "dark" room. I have seen some
very good video with 500 lumen sets in an extremely dark room.

Besides the points Alan made, head height, lens/throw distance,
screen/projector height and keystone, heat, dust & dirt, audience
seating/layout which also determines screen gain/type, video cable length,
power requirements, ground loops that cause hum bars, just a few more items
to consider.

Call a couple of good video installers and get some advice and opinions. It
sure saves a lot of money, heartache, and disappointment!

Good luck, Joseph



-----Original Message-----
From: Alan Brown
Sent: Monday, June 20, 2005 6:35 PM
To: HDTV Magazine
Subject: Re: Projector questions

----- HDTV Magazine Tips List -----

There are not enough details provided to advise you further. Ideally, I
would want to see the setup. I strongly recommend that you
pay a professional consultant to inspect the installation and help you make
the decision. It should not take more than an hour of
their time, if you provide them with well thought out and detailed usage
plans. Things that you have not noted should include: type
of screen fabric, what windows are there and where, viewing distances and
sight lines, proposed mounting height of the screen,
locations of room lights that may be used during viewing, budget, desired
resolution, etc.

You must understand that the lumen statistics published by most projector
manufacturers are a farce and cannot be relied upon for
reference or comparisons. Real world light output characteristics are
seldom used in product marketing. It would be useful as well
for you to understand that most data projectors are not configured for good
video and film reproduction. Characteristics that can
differ include: optics, fan noise, video processing, 2:3 pull down
detection, inputs, black level and shadow detail, motion
rendering, etc., etc. There are very good reasons why home theater models
are so much more expensive than equivalent presentation
models that may be based on the same chassis, from the same manufacturer.

Best regards and beautiful pictures,
Alan Brown, President
CinemaQuest, Inc.
www.cinemaquestinc.com

"Advancing the art and science of electronic imaging"

-----Original Message-----
From: HDTV Magazine On Behalf Of
Jack
Sent: Monday, June 20, 2005 3:38 PM
To: HDTV Magazine
Subject: Projector questions


----- HDTV Magazine Tips List -----

A question for Joe Azar or anyone who may know.

Need to purchase a projector for a fellowship hall. As I understand it the
projector will be mounted from the ceiling about 21 ft. away from a
motorized 9 X 12 screen. Is this enough info to determine how many lumens
are needed? The light can be completely controlled by a dimming system. We
will use it to do powerpoints, movies, and television via cable. Any other
particulars I should be considering?

Jack


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#4
----- HDTV Magazine Tips List -----

Alan and Joe,

I do have a professional consultant that I have known for years. However,
because he is such an audio-videophile he always recommends stuff that is
more than we really need. I just don't want more project than we need for
the intended uses. This is not a home theater, but a fellowship hall in
which we will occasionally (not very often actually) have presentations,
films, and maybe a superbowl party. I told him I did want to be able to
project HDTV using cable input....and we're even making provision to add
surround sound to spice up movie presentations to our youth. Just thought
you guys might have some things to say that would help. There are no windows
in the room. I think he said something about 4000 lumens, sounds like a lot
to me. Thanks for your comments.

Jack
----- Original Message -----
From: "Alan Brown" <[email protected]>
To: "HDTV Magazine" <[email protected]>
Sent: Monday, June 20, 2005 5:34 PM
Subject: Re: Projector questions


> ----- HDTV Magazine Tips List -----
>
> There are not enough details provided to advise you further. Ideally, I
would want to see the setup. I strongly recommend that you
> pay a professional consultant to inspect the installation and help you
make the decision. It should not take more than an hour of
> their time, if you provide them with well thought out and detailed usage
plans. Things that you have not noted should include: type
> of screen fabric, what windows are there and where, viewing distances and
sight lines, proposed mounting height of the screen,
> locations of room lights that may be used during viewing, budget, desired
resolution, etc.
>
> You must understand that the lumen statistics published by most projector
manufacturers are a farce and cannot be relied upon for
> reference or comparisons. Real world light output characteristics are
seldom used in product marketing. It would be useful as well
> for you to understand that most data projectors are not configured for
good video and film reproduction. Characteristics that can
> differ include: optics, fan noise, video processing, 2:3 pull down
detection, inputs, black level and shadow detail, motion
> rendering, etc., etc. There are very good reasons why home theater models
are so much more expensive than equivalent presentation
> models that may be based on the same chassis, from the same manufacturer.
>
> Best regards and beautiful pictures,
> Alan Brown, President
> CinemaQuest, Inc.
> www.cinemaquestinc.com
>
> "Advancing the art and science of electronic imaging"
>
> -----Original Message-----
> From: HDTV Magazine On Behalf Of
> Jack
> Sent: Monday, June 20, 2005 3:38 PM
> To: HDTV Magazine
> Subject: Projector questions
>
>
> ----- HDTV Magazine Tips List -----
>
> A question for Joe Azar or anyone who may know.
>
> Need to purchase a projector for a fellowship hall. As I understand it the
> projector will be mounted from the ceiling about 21 ft. away from a
> motorized 9 X 12 screen. Is this enough info to determine how many lumens
> are needed? The light can be completely controlled by a dimming system. We
> will use it to do powerpoints, movies, and television via cable. Any other
> particulars I should be considering?
>
> Jack
>
>
> To unsubscribe please click: [email protected]
>
> To receive the digest mode (one email a day made from all posted that same
day) send an email to:
> [email protected]
>
> --
> No virus found in this incoming message.
> Checked by AVG Anti-Virus.
> Version: 7.0.323 / Virus Database: 267.7.9/23 - Release Date: 6/20/2005
>
> --
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
> Version: 7.0.323 / Virus Database: 267.7.9/23 - Release Date: 6/20/2005
>
>
>
>
> To unsubscribe please click: [email protected]
>
> To receive the digest mode (one email a day made from all posted that same
day) send an email to:
> [email protected]


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#5
----- HDTV Magazine Tips List -----

Jack,

A good consultant will design the system for your needs, not theirs.

I also get calls from folks that say they want HD but did not want to
pay an HD price.

The advice you have received form the TIPS is on the money especially...

> films, and maybe a superbowl party. I told him I did want to be able to
> project HDTV using cable input....and we're even making provision to add
> surround sound to spice up movie presentations to our youth.

All that said you could certainly just go out and buy an inexpensive
projector, put it on a table and throw it on your present screen. Many
will accept and scale HD to ED. Add a home theater in a box and you may
very well be pleased with it all. It can be difficult to find
consultants willing to help you if your budget is not great enough and
for good reason, there isn't all that much difference in the lower price
ranges.

Ask your consultant to present you with a system that images well for
casual viewers rather than meeting videophile or critical viewing
applications. ED is quite capable of such a presentation but like all
systems requires the right recipe and proper installation to achieve it.
Tell him you want the system wired for a future HD light engine. Later
down the line you can always replace the light engine with an HD machine
when they are even lower in price than now. You'll appreciate having
provided the infrastructure a couple of years before!

You may also find the difference in price between HD and ED is not great
enough to wait when compared to the total turn-key system price.

Richard Fisher
www.HDLibrary.com Published by Tech Services
A division of Mastertech Repair Corporation

FJ wrote:
> ----- HDTV Magazine Tips List -----
>
> Alan and Joe,
>
> I do have a professional consultant that I have known for years. However,
> because he is such an audio-videophile he always recommends stuff that is
> more than we really need. I just don't want more project than we need for
> the intended uses. This is not a home theater, but a fellowship hall in
> which we will occasionally (not very often actually) have presentations,
> films, and maybe a superbowl party. I told him I did want to be able to
> project HDTV using cable input....and we're even making provision to add
> surround sound to spice up movie presentations to our youth. Just thought
> you guys might have some things to say that would help. There are no windows
> in the room. I think he said something about 4000 lumens, sounds like a lot
> to me. Thanks for your comments.
>
> Jack
> ----- Original Message -----
> From: "Alan Brown" <[email protected]>
> To: "HDTV Magazine" <[email protected]>
> Sent: Monday, June 20, 2005 5:34 PM
> Subject: Re: Projector questions
>
>
>
>>----- HDTV Magazine Tips List -----
>>
>>There are not enough details provided to advise you further. Ideally, I
>
> would want to see the setup. I strongly recommend that you
>
>>pay a professional consultant to inspect the installation and help you
>
> make the decision. It should not take more than an hour of
>
>>their time, if you provide them with well thought out and detailed usage
>
> plans. Things that you have not noted should include: type
>
>>of screen fabric, what windows are there and where, viewing distances and
>
> sight lines, proposed mounting height of the screen,
>
>>locations of room lights that may be used during viewing, budget, desired
>
> resolution, etc.
>
>>You must understand that the lumen statistics published by most projector
>
> manufacturers are a farce and cannot be relied upon for
>
>>reference or comparisons. Real world light output characteristics are
>
> seldom used in product marketing. It would be useful as well
>
>>for you to understand that most data projectors are not configured for
>
> good video and film reproduction. Characteristics that can
>
>>differ include: optics, fan noise, video processing, 2:3 pull down
>
> detection, inputs, black level and shadow detail, motion
>
>>rendering, etc., etc. There are very good reasons why home theater models
>
> are so much more expensive than equivalent presentation
>
>>models that may be based on the same chassis, from the same manufacturer.
>>
>>Best regards and beautiful pictures,
>>Alan Brown, President
>>CinemaQuest, Inc.
>>www.cinemaquestinc.com
>>
>>"Advancing the art and science of electronic imaging"
>>
>>-----Original Message-----
>>From: HDTV Magazine On Behalf Of
>>Jack
>>Sent: Monday, June 20, 2005 3:38 PM
>>To: HDTV Magazine
>>Subject: Projector questions
>>
>>
>>----- HDTV Magazine Tips List -----
>>
>>A question for Joe Azar or anyone who may know.
>>
>>Need to purchase a projector for a fellowship hall. As I understand it the
>>projector will be mounted from the ceiling about 21 ft. away from a
>>motorized 9 X 12 screen. Is this enough info to determine how many lumens
>>are needed? The light can be completely controlled by a dimming system. We
>>will use it to do powerpoints, movies, and television via cable. Any other
>>particulars I should be considering?
>>
>>Jack
>>
>>
>>To unsubscribe please click: [email protected]
>>
>>To receive the digest mode (one email a day made from all posted that same
>
> day) send an email to:
>
>>[email protected]
>>
>>--
>>No virus found in this incoming message.
>>Checked by AVG Anti-Virus.
>>Version: 7.0.323 / Virus Database: 267.7.9/23 - Release Date: 6/20/2005
>>
>>--
>>No virus found in this outgoing message.
>>Checked by AVG Anti-Virus.
>>Version: 7.0.323 / Virus Database: 267.7.9/23 - Release Date: 6/20/2005
>>
>>
>>
>>
>>To unsubscribe please click: [email protected]
>>
>>To receive the digest mode (one email a day made from all posted that same
>
> day) send an email to:
>
>>[email protected]
>
>
>
> To unsubscribe please click: [email protected]
>
> To receive the digest mode (one email a day made from all posted that same day) send an email to:
> [email protected]
>


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#6
----- HDTV Magazine Tips List -----

Get him to bring a couple of units over and demonstrate. That will answer
the lumen question.

-----Original Message-----
From: FJ
Sent: Tuesday, June 21, 2005 12:26 AM
To: HDTV Magazine
Subject: Re: Projector questions

----- HDTV Magazine Tips List -----

Alan and Joe,

I do have a professional consultant that I have known for years. However,
because he is such an audio-videophile he always recommends stuff that is
more than we really need. I just don't want more project than we need for
the intended uses. This is not a home theater, but a fellowship hall in
which we will occasionally (not very often actually) have presentations,
films, and maybe a superbowl party. I told him I did want to be able to
project HDTV using cable input....and we're even making provision to add
surround sound to spice up movie presentations to our youth. Just thought
you guys might have some things to say that would help. There are no windows
in the room. I think he said something about 4000 lumens, sounds like a lot
to me. Thanks for your comments.

Jack
----- Original Message -----
From: "Alan Brown" <[email protected]>
To: "HDTV Magazine" <[email protected]>
Sent: Monday, June 20, 2005 5:34 PM
Subject: Re: Projector questions


> ----- HDTV Magazine Tips List -----
>
> There are not enough details provided to advise you further. Ideally, I
would want to see the setup. I strongly recommend that you
> pay a professional consultant to inspect the installation and help you
make the decision. It should not take more than an hour of
> their time, if you provide them with well thought out and detailed usage
plans. Things that you have not noted should include: type
> of screen fabric, what windows are there and where, viewing distances and
sight lines, proposed mounting height of the screen,
> locations of room lights that may be used during viewing, budget, desired
resolution, etc.
>
> You must understand that the lumen statistics published by most projector
manufacturers are a farce and cannot be relied upon for
> reference or comparisons. Real world light output characteristics are
seldom used in product marketing. It would be useful as well
> for you to understand that most data projectors are not configured for
good video and film reproduction. Characteristics that can
> differ include: optics, fan noise, video processing, 2:3 pull down
detection, inputs, black level and shadow detail, motion
> rendering, etc., etc. There are very good reasons why home theater models
are so much more expensive than equivalent presentation
> models that may be based on the same chassis, from the same manufacturer.
>
> Best regards and beautiful pictures,
> Alan Brown, President
> CinemaQuest, Inc.
> www.cinemaquestinc.com
>
> "Advancing the art and science of electronic imaging"
>
> -----Original Message-----
> From: HDTV Magazine On Behalf Of
> Jack
> Sent: Monday, June 20, 2005 3:38 PM
> To: HDTV Magazine
> Subject: Projector questions
>
>
> ----- HDTV Magazine Tips List -----
>
> A question for Joe Azar or anyone who may know.
>
> Need to purchase a projector for a fellowship hall. As I understand it the
> projector will be mounted from the ceiling about 21 ft. away from a
> motorized 9 X 12 screen. Is this enough info to determine how many lumens
> are needed? The light can be completely controlled by a dimming system. We
> will use it to do powerpoints, movies, and television via cable. Any other
> particulars I should be considering?
>
> Jack
>
>
> To unsubscribe please click: [email protected]
>
> To receive the digest mode (one email a day made from all posted that same
day) send an email to:
> [email protected]
>
> --
> No virus found in this incoming message.
> Checked by AVG Anti-Virus.
> Version: 7.0.323 / Virus Database: 267.7.9/23 - Release Date: 6/20/2005
>
> --
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
> Version: 7.0.323 / Virus Database: 267.7.9/23 - Release Date: 6/20/2005
>
>
>
>
> To unsubscribe please click: [email protected]
>
> To receive the digest mode (one email a day made from all posted that same
day) send an email to:
> [email protected]


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