Constant height image epson 3020 - AVS Forum
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post #1 of 10 Old 07-11-2013, 06:48 PM - Thread Starter
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Hello all,

I just purchased an Epson 3020 and I am trying to set up the constant height image on it. there is nothing in the manual that was helping me out so I decided to ask around. I am having this issue with my aspect option (located after you press the aspect ratio.
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post #2 of 10 Old 07-11-2013, 06:53 PM
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Originally Posted by freeeagle View Post

Hello all,

I just purchased an Epson 3020 and I am trying to set up the constant height image on it. there is nothing in the manual that was helping me out so I decided to ask around. I am having this issue with my aspect option (located after you press the aspect ratio.

Constant image height is used specifically with an anamorphic lens if im not mistaken. You could "Cheat" and zoom your projector in so that there are not blackc bars on the top and bottom.. however its not really the same.

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post #3 of 10 Old 07-11-2013, 07:13 PM
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Originally Posted by Shady195 View Post

Constant image height is used specifically with an anamorphic lens if im not mistaken. You could "Cheat" and zoom your projector in so that there are not blackc bars on the top and bottom.. however its not really the same.

CIH is done all the time without a lens. There may be more CIH systems without lens than there are CIH systems with lens. It is easy to do with any projector that has lens memory, like any of the JVC's, Sony VW95ES , Sony VW1000ES and many others. Before lens memory, many people did it using a projector with powered lens and as you talked about, there are a few people that do CIH by manually adjusting the zoom and lens shift. I will have to admit, I would never consider doing CIH with a projector with manual lens features. That would be a big pain in the butt.

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post #4 of 10 Old 07-11-2013, 07:23 PM
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Given the 3020 has a manual zoom and no lens shift, its not really practical to do CIH using the zoom method with this projector. Also given an Anamorphic lens plus external processing to vertically stretch the image would cost more than the projector this may not make economic sense.


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post #5 of 10 Old 07-11-2013, 07:31 PM
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Originally Posted by AV Science Sales 5 View Post

CIH is done all the time without a lens. There may be more CIH systems without lens than there are CIH systems with lens. It is easy to do with any projector that has lens memory, like any of the JVC's, Sony VW95ES , Sony VW1000ES and many others. Before lens memory, many people did it using a projector with powered lens and as you talked about, there are a few people that do CIH by manually adjusting the zoom and lens shift. I will have to admit, I would never consider doing CIH with a projector with manual lens features. That would be a big pain in the butt.

Ahh thanks for the heads up. I always assumed from various threads that a true CIH setup was done with an anamorphic lens

I guess technically it wouldent matter how its achieved so long as the image fits the screen tongue.gif
Always assumed that was the "taboo" way of doing it so to speak. makes sense though.

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post #6 of 10 Old 07-11-2013, 07:37 PM
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Originally Posted by Shady195 View Post

Ahh thanks for the heads up. I always assumed from various threads that a true CIH setup was done with an anamorphic lens

I guess technically it wouldent matter how its achieved so long as the image fits the screen tongue.gif
Always assumed that was the "taboo" way of doing it so to speak. makes sense though.

I am sure many lens users do feel that way. smile.gif

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post #7 of 10 Old 07-12-2013, 07:55 AM
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I'd call it (using a lens and video processor) the "ultimate" way to do CIH, but I wouldn't use the word "true"

Kind of like having a garage with a two post lift is the ultimate for working on your car (quicker/easier/more efficient, but expensive and takes lots of space), but you can do it with a floor jack and jack stands too (harder/less efficient, but cheap and doesn't take any space hardly), both have pros and cons.

See what an anamorphoscopic lens can do, see movies the way they were meant to be seen
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post #8 of 10 Old 07-12-2013, 08:25 AM
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Originally Posted by stanger89 View Post

I'd call it (using a lens and video processor) the "ultimate" way to do CIH, but I wouldn't use the word "true"

Kind of like having a garage with a two post lift is the ultimate for working on your car (quicker/easier/more efficient, but expensive and takes lots of space), but you can do it with a floor jack and jack stands too (harder/less efficient, but cheap and doesn't take any space hardly), both have pros and cons.

Yes lots of ways to do it and each has their pros and cons. I am a lens user and I also use a Lumagen video processor. smile.gif

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post #9 of 10 Old 07-12-2013, 09:04 AM
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Ah, good lens + Radiance = CIH Happiness cool.gif

See what an anamorphoscopic lens can do, see movies the way they were meant to be seen
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post #10 of 10 Old 07-12-2013, 09:10 AM
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Ah, good lens + Radiance = CIH Happiness cool.gif

But this thread is about a person with an entry level projector (Epson 3020) and I doubt anyone is seriously going to be spending an additional $5K to add an good quality A-lens plus a Radiance processor to such a budget projector.

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