Home Theater Shack Forums
Home About Us Rules Register Gallery Glossary FAQ
Creative Sound Solutions: Loudspeaker kits and components for subwoofers, midwoofers, woofers and full range speakers! Reliable Hardware: A Reliable Source for Case, Cabinet and Acoustical Hardware! Epik Subwoofers manufactures world-leading high performance subwoofers for die-hard home theater and music enthusiasts who won't settle for anything less than the best. Parts Express: Excellent Source for DIY Speaker and Subwoofer Projects! RAM Electronics: Audio, Video, Home Theater and Computer Cables. PacParts: Replacement parts & accessories from the most recognized manufacturers in the Consumer Electronics Industry! Discount Merchant:  If you need a replacement bulb for your video device... look no further... save big! Emotiva is your Home Theater Component Source for Audiophile Quality Home Theater Equipment at Factory Direct Prices Fi Audio: Infinitely amazing balanced high end musicality designed drivers! Ultimate Home Entertainment: Providing home theater seating and accessories such as popcorn machines and signage... at very affordable prices! Visual Apex: The most competitive pricing for home theater projectors... and built on customer satisfaction! BOCS - Power Up Your Tivo! Elite Screens offers the finest in affordable projection screens. SVSound GIK Acoustics: Home audio acoustics at its best... especially when you have help from the owners right here at the Shack!  Check out their very affordable acoustic panels!
Go Back   Home Theater Forum and Systems - HomeTheaterShack.com > Home Theater | Audio | Video > Home Theater Projectors > Anamorphic Projection
Forgot Password?

Anamorphic Projection

  Discuss 16:9 Screen Vs. 2.37:1 CIH Screen in the Home Theater Projectors forum; 16:9 Screen Vs. 2.37:1 CIH Screen Prof. wrote: Mark..How is the progress going on the Mk.111..Do we have a release date yet? Also can you tell ...



 Reply     Post New Thread
Views: 7020 - Replies: 84  
Thread Tools
Old 02-16-08, 09:28 PM   #21
Senior Shackster
Alias: Mark Techer
Loc: Brisbane, Australia
User: #15620
Since: Jan 2008
Posts: 135
  Mark Techer is offline  
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


Quote:
Prof. wrote: View Post
Mark..How is the progress going on the Mk.111..Do we have a release date yet?
Also can you tell us what the difference will be over the MK.11.?
Unfortunately, no set date. The MKIII will be released in stages –
1. Injection Molded Plastic case that allows both future upgrades as well as backwards compatibility.

2. Focal correction or “astigmatism correction” element

3. CA correction where the new prisms will be made from two different types of glass that have been bonded together.

All of this takes time and money, and so a slow process when developing and funding a project like this yourself...

Mark



Forum Rules Reply With Quote
Alt Advertisement
Old 02-17-08, 05:59 PM   #22
Shack Moderator
Platinum Supporter
Alias: Prof.
Prof.'s Avatar
Loc: South of Adelaide
User: #3204
Since: Oct 2006
Posts: 2,558
  Prof. is offline    
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


Quote:
Mark Techer wrote: View Post
Unfortunately, no set date. The MKIII will be released in stages –
1. Injection Molded Plastic case that allows both future upgrades as well as backwards compatibility.

2. Focal correction or “astigmatism correction” element

3. CA correction where the new prisms will be made from two different types of glass that have been bonded together.

All of this takes time and money, and so a slow process when developing and funding a project like this yourself...

Mark
This sounds like one serious lens!!...And my guess is that it will compete with the best of them..
Good luck with it all and keep us up to date with your progress..


Prof..
Home Theatre...the never ending story!

Forum Rules Reply With Quote
Old 02-17-08, 07:12 PM   #23
Senior Shackster
Alias: Mark Techer
Loc: Brisbane, Australia
User: #15620
Since: Jan 2008
Posts: 135
  Mark Techer is offline  
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


Quote:
Prof. wrote: View Post
This sounds like one serious lens!!...And my guess is that it will compete with the best of them..
Good luck with it all and keep us up to date with your progress..
In order to make CIH a real success, there needs to be quality products that are affordable. This is part of the reason it will com out in stages...

Mark


Forum Rules Reply With Quote
Old 02-18-08, 07:41 AM   #24
Shackster
Alias: Maikel
Loc: Arnhem, The Netherlands
User: #15347
Since: Jan 2008
Posts: 65
  maikeldepotter is offline  
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


This seems to be the right place to ask the following question:

If you have a high resolution (HD) and "screendoor free" 16:9 projector like the Panasonic PT-AE2000that is able to fill up the total width of your 2,35 screen without seeing any pixel structures, and you can electrically zoom out from 16:9 to 21:9 without having to adjust focus and/or lens shift. What does an anamorphic lens bring you? More lumen, more sharpness, more contrast? And will this be easily noticable?

Thanks.


Forum Rules Reply With Quote
Old 02-18-08, 09:03 AM   #25
Senior Shackster
Alias: Mark Techer
Loc: Brisbane, Australia
User: #15620
Since: Jan 2008
Posts: 135
  Mark Techer is offline  
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


Quote:
maikeldepotter wrote: View Post
This seems to be the right place to ask the following question:

If you have a high resolution (HD) and "screendoor free" 16:9 projector like the Panasonic PT-AE2000that is able to fill up the total width of your 2,35 screen without seeing any pixel structures, and you can electrically zoom out from 16:9 to 21:9 without having to adjust focus and/or lens shift. What does an anamorphic lens bring you? More lumen, more sharpness, more contrast? And will this be easily noticable?

Thanks.

The HD panel is 1920 x 1080. When you zoom, you only see 1920 x 810 with the remainder being projected off the top and bottom. As you zoom, the pixels increase both horizontally and vertically.

Adding an anamorphic lens allows your projected image to be made from the entire panel instead of just 75%. The lens expands the pixels, but only in the horizontal direction, so the vertical size remains the same. This is benificial as we are more sensitive to vertical than we are to horizontal pixel structure...

Mark


Forum Rules Reply With Quote
Old 02-18-08, 09:47 AM   #26
Shackster
Alias: Maikel
Loc: Arnhem, The Netherlands
User: #15347
Since: Jan 2008
Posts: 65
  maikeldepotter is offline  
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


Quote:
Mark Techer wrote: View Post
The HD panel is 1920 x 1080. When you zoom, you only see 1920 x 810 with the remainder being projected off the top and bottom. As you zoom, the pixels increase both horizontally and vertically.

Adding an anamorphic lens allows your projected image to be made from the entire panel instead of just 75%. The lens expands the pixels, but only in the horizontal direction, so the vertical size remains the same. This is benificial as we are more sensitive to vertical than we are to horizontal pixel structure...

Mark
Thanks for your reply Mark. I understand what you are saying. The question remains what the maximum viewing distance should be to actually benefit from this improved vertical pixel structure. On a 2 meter wide screen the pixels measure 1x1 mm. Even from the the shortest recommended viewing distance of 1,45 meter (field of view 140 degrees) I am not able to see any pixels. Maybe you can still see a difference in sharpness? I really don't know . Has anyone experienced this in a side-to-side comparison: "Zooming out" versus "Anamorhpic projection" with a HD beamer at different viewing distances?


Forum Rules Reply With Quote
Old 02-19-08, 07:36 AM   #27
Senior Shackster
Alias: Mark Techer
Loc: Brisbane, Australia
User: #15620
Since: Jan 2008
Posts: 135
  Mark Techer is offline  
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


Acually you should work your seating distance from image height, not the width, where you should be no closer than 2x the image height and no farther back then 4x.

The beauty of CIH with a lens is that those pixels stay the same size (vertically) as you change ARs, so you do not loose sharpness*.

*pending the type of lens.

When you zoom, your pixels do increase vertically, so it is almost like going back from 1080 to 720, but not quiet, it is actually about 810...

Mark


Forum Rules Reply With Quote
Old 02-21-08, 01:55 PM   #28
Shackster
Alias: Maikel
Loc: Arnhem, The Netherlands
User: #15347
Since: Jan 2008
Posts: 65
  maikeldepotter is offline  
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


Quote:
Mark Techer wrote: View Post
Acually you should work your seating distance from image height, not the width, where you should be no closer than 2x the image height and no farther back then 4x.

The beauty of CIH with a lens is that those pixels stay the same size (vertically) as you change ARs, so you do not loose sharpness*.

*pending the type of lens.

When you zoom, your pixels do increase vertically, so it is almost like going back from 1080 to 720, but not quiet, it is actually about 810...

Mark
In my set-up the viewing distance is 3x the image height using 2.37:1 projection (34 inch high; 80 inch wide), and 2.5x the image height using 16:9 projection (41 inch high; 73.5 inch wide).

So I don't have real CIH projection (constant image height). But in this way I keep the bottom of the projection at the same height (measured from the floor 31 inch) when going from one format to the other just by zooming. I have a variable masking screen that allows me to horizontally adjust the projection surface by pushing one button on the remote.

In this way I believe I have created close to optimal viewing distances (according toTHX and SMPT standards) for both 2.37:1 and 16:9 formats. And yes, I understand I am not using the projector's full resolution capability with 2.37:1.

But again, will the picture quality visibly improve with an anamorphic lens?

Will the added sharpness be more predominant than the possible adverse effects of lens imperfections and faults introduced by the pixel recalculations for the vertical stretching of the 2.37:1 picture to fit the 16:9 LCD chip?

I am not a disbeliever. I just don't know!


Last edited by maikeldepotter; 02-21-08 at 02:00 PM.. Reason: editorial changes

Forum Rules Reply With Quote
Old 02-21-08, 05:59 PM   #29
Shack Moderator
Platinum Supporter
Alias: Prof.
Prof.'s Avatar
Loc: South of Adelaide
User: #3204
Since: Oct 2006
Posts: 2,558
  Prof. is offline    
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


Quote:
maikeldepotter wrote: View Post
But again, will the picture quality visibly improve with an anamorphic lens?
On a 2 Metre.. wide screen with an HD system....There will be some improvement but probably barely noticeable..
If you had a 3 Metre wide screen, then there would be some obvious improvement over the zoom method..

Quote:
Will the added sharpness be more predominant than the possible adverse effects of lens imperfections and faults introduced by the pixel recalculations for the vertical stretching of the 2.37:1 picture to fit the 16:9 LCD chip?
As far as I'm aware..it would not be an issue..


Prof..
Home Theatre...the never ending story!

Forum Rules Reply With Quote
Old 02-21-08, 06:22 PM   #30
Shack Moderator
Platinum Supporter
Alias: Prof.
Prof.'s Avatar
Loc: South of Adelaide
User: #3204
Since: Oct 2006
Posts: 2,558
  Prof. is offline    
Re: 16:9 Screen Vs. 2.37:1 CIH Screen


Just to add to that...

The whole idea of having a Scope setup is not just to remove the black bars, but to have that very wide screen image...Like you see in the Cinema...that really immerses you in the action on the screen..

It is generally accepted that the minimum width for a scope screen is 8' wide, with 9' being ideal if your room is large enough..
Anything smaller is not going to give you the same effect, and if 2 Metres is your maximum size you are able to fit or have in the room..then it probably isn't worth the additional costs involved..


Prof..
Home Theatre...the never ending story!

Forum Rules Reply With Quote
 Reply     Post New Thread     Post New Thread


« Home Theater Shack > Home Theater | Audio | Video > Home Theater Projectors > Anamorphic Projection »

« Previous Thread   Next Thread »

Bookmarks
Thread Tools

Posting Rules
You may not post new threads... You may not post replies... You may not post attachments... You may not edit your posts

BB code is On... Smilies are On... [IMG] code is On... HTML is not allowed!



Bookmark and Share


Parts Express: The #1 Internet source for all your DIY and electronics needs!

Ultimate Home Entertainment    

This site is best viewed with a screen resolution width of 1280 or higher!




Powered by vBulletin
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
Copyright ©2006 - 2010, Home Theater Shack, LLC.
John Mulcahy and Sonnie Parker - ALL RIGHTS RESERVED!



Massage Chairs   Wall Fountains   Bath Vanities   Electric Fireplaces   Bunk Beds

Dish Network



Sponsor/Vendor Ad Rates

Search Engine Friendly URLs by vBSEO 3.3.0