16:9 Screen Vs. 2.37:1 CIH Screen - Page 7 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #61 of 96 Old 04-12-08, 07:03 PM Thread Starter
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

Well you've made a good start Jack, with a 2.4:1 screen..

More and more people are going this route now for their standard 16:9 projection..
It does make life a bit easier with just side masking for 16:9, or not bothering with it at all..
I've never found the need to mask my 2.4:1 screen..

However, you are missing out on full image quality, when you zoom to fill the screen..The pixels are being stretched horizontally and vertically, which degrades the image to some degree..

To give you an idea of how much better it would look, when you use an anamorphic lens..
Next time you have a 2.35:1 movie up on the screen, take a close look at how sharp and detailed it is, prior to zooming..
This is almost the same detail you will see, when a lens is used to expand the image..

If you go the DIY way or buy a lens kit assembly, it's not all that expensive to have a very reasonable anamorphic lens..

Prof..
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post #62 of 96 Old 04-12-08, 07:35 PM
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

Hey Prof, there's no doubt the anamorphic lens is the way to go
currently, I have a 720 projector, and I sit just beyond the point where I would see screen door when the image is 10 feet wide (thats how wide my screen is)

I've sat on the lens sidelines watching people with more disposable income than myself enjoy some really spectacular setups.

What are the DIY lenses costing these days?

- Jack
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post #63 of 96 Old 04-12-08, 08:05 PM Thread Starter
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

Quote:
basementjack wrote: View Post
Hey Prof, there's no doubt the anamorphic lens is the way to go
currently, I have a 720 projector, and I sit just beyond the point where I would see screen door when the image is 10 feet wide (thats how wide my screen is)
That's very nice wide screen and it would look absolutely brilliant with Anamorphic projection..

Quote:
What are the DIY lenses costing these days?
OK..There are two ways of going DIY..

1. Buying prisms from someone like this http://www.crystalfactory.com/CWD46-CWD57-CWD68.asp
The 5"x7" is the size you need, and if you have just rudimentary carpentry skills, it's very easy to make a case for them..
Mark and myself can give you all the info. you need to do this..

2. You can buy a lens kit from HT Brothers or CAVX..I have the CAVX lens..http://cavx.blogspot.com/2007/04/4-prism-lens.html
Just scroll down for pricing..

As you can see, a considerable saving on buying commercial lenses..

Prof..
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post #64 of 96 Old 09-02-08, 04:16 AM
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

This is a really useful thread, thanks

I don't even have a projector but when I do I would like to do it 'properly' and go for a CIH setup. This thread has helped me understand what actually happens and the benefits.

Can someone tell me the downsides to this approach?

Assuming I have a 2.35:1 screen, do I need to remove the lens when using some sources or can you just put up with black bars at the sides? I expect most of my movies will be HD and at least 2.35:1 but some DVDs will be 16:9, the only 4:3 I have will be something like Star Trek on HD-DVD.

What I would prefer is a setup I don't have to keep fiddling with each time I want to play a disc; I use an HTPC as a source so have to jump through enough hoops already

Thanks,

Adam
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post #65 of 96 Old 09-02-08, 07:36 PM Thread Starter
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

Quote:
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Assuming I have a 2.35:1 screen, do I need to remove the lens when using some sources or can you just put up with black bars at the sides? I expect most of my movies will be HD and at least 2.35:1 but some DVDs will be 16:9, the only 4:3 I have will be something like Star Trek on HD-DVD.
Adam,

I leave my lens place for 1.78 :1,1.85:1 and 2.35:1 aspect ratios..
I don't bother about any black bars at the sides.. and with my current screen the blacks are so good that it almost looks like it's masked anyway..
Some people do however prefer to mask the sides when showing 1.78:1 movies..

The other thing that helps to minimize adjusting procedures is that some 1.78:1 movis can be shown in 2.35:1 AR..I do this with a number of my movies..

Prof..
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post #66 of 96 Old 10-10-08, 07:45 PM
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

what is the best projector for Anamorphic viewing?under $5k
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post #67 of 96 Old 10-11-08, 05:41 PM Thread Starter
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

Hi takumi and welcome..

The best projector for Anamorphic projection will depend on several things..
Firstly, we need to know whether you prefer DLP or LCD..
What your projection distance and throw ratio will be..and whether you need a projector with vertical stretch, or whether you have a scaler or DVD player that will do the vertical stretch..
I presume your looking at getting a 1080p projector for that budget..

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post #68 of 96 Old 10-11-08, 06:32 PM
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

And does that budget include the anamorphic lens?
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post #69 of 96 Old 10-11-08, 08:31 PM
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

thanks, now i will search for the difference between dlp and lcd projector. the only info i can give u is that i have 16'x23' media room with french doors in the back, its also pre wired for 5 speakers.
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post #70 of 96 Old 10-11-08, 08:34 PM
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Re: 16:9 Screen Vs. 2.37:1 CIH Screen

scaler? vertical stretch? i have a lot to learn.
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