Nub Question on CIH and Runco Rainier Autoscope Lens - AVS Forum
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post #1 of 9 Old 02-29-2012, 04:10 PM - Thread Starter
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I currently have a Runco Q-750i with a 120" dia 1.0 gain screen in 16:9

I am looking at getting a new screen probably Stewart StudioTek 130 G3 either in 1.78 or 2.35. The lens would be on the autoscope sled so I could still watch 1.78 without issue.

A few questions:

1.) Do I need a curved screen for CIH?
2.) Is the Runco Rainier a "good" CIH lens?
3.) Should I go 2.35 or stick with 1.78?

Comments questions what other information do you need etc. to help me make a better informed decision?

Thank you.

David

"You buy a Ferrari when you want to be somebody. You buy a Lamborghini when you are somebody." - Frank Sinatra
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post #2 of 9 Old 02-29-2012, 04:39 PM
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Quote:
Originally Posted by rovingtravler View Post


A few questions:

1.) Do I need a curved screen for CIH?
2.) Is the Runco Rainier a "good" CIH lens?
3.) Should I go 2.35 or stick with 1.78?

Answers:

1. Given you intend to move the lens from the light path for 16:9, a curved screen is an option you need to consider based on your program. On a flat screen, the A-Lens will produce pincushion. A curved screen is used to fix that. However when you remove the A-Lens, you now get barreling.
So it really comes down to how much of each type of program you watch.

2. It should be a re-badged ISCO. The last unit I saw was using an unmarked ISCO III L.

3. If you buy the system with the lens, you need a Scope screen.

Mark Techer

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post #3 of 9 Old 02-29-2012, 10:59 PM - Thread Starter
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Thanks for the info. for question 3 I should have been more clear. I meant is it worth moving to 2.35 ...is the experience that much better seeing films in their correct format? Or should I wait until 2.35 native projectors are out and upgrade at that point?

David

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post #4 of 9 Old 03-01-2012, 01:11 AM
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Quote:
Originally Posted by rovingtravler View Post

Thanks for the info. for question 3 I should have been more clear. I meant is it worth moving to 2.35 ...is the experience that much better seeing films in their correct format? Or should I wait until 2.35 native projectors are out and upgrade at that point?

Ask any one here that uses an A-Lens and they will pretty much all tell you that there is no going back to 16:9 (with letterboxing) for them. Yeah the difference is that great.

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post #5 of 9 Old 03-01-2012, 01:40 AM
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Quote:
Originally Posted by rovingtravler View Post

I meant is it worth moving to 2.35 ...is the experience that much better seeing films in their correct format?

Yes, without a doubt. If you are a movie lover 2.35 is the way to go.

Quote:


Or should I wait until 2.35 native projectors are out and upgrade at that point?

No, why wait for something you can get today. A native projector can give you a slight advantage in light over the current setups, but if you have enough light, you dont need more light.
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post #6 of 9 Old 03-01-2012, 08:24 AM - Thread Starter
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Thanks guys.

I will be moving to a CIH set up. I one last question which is better the prismatic or cylinder based lens?

David

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post #7 of 9 Old 03-01-2012, 10:10 AM
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Cylindricals are the better design. Prisms are basically a "cheap" alternative, not saying there aren't good prisms, I'm quite happy with my prism based HD5000R, but they're basically just cheaper to manufacture than the superior design of a cylindrical.

See what an anamorphoscopic lens can do, see movies the way they were meant to be seen
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post #8 of 9 Old 03-05-2012, 06:02 PM
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Two more issues. First I own both a quality prism and a cylindrical lens. The image quality of the cylindrical is slightly better but the ease or alignment and much less light reflections make the cylindrical my choice.
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post #9 of 9 Old 03-05-2012, 06:19 PM
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Quote:
Originally Posted by CRGINC View Post

The image quality of the cylindrical is slightly better

Only slightly?

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