2.35 Constant Height Faq - Page 17

Should I use the bypass mode of the lens?

Not if you want CIH.

The VP30 does 48 fps and the ruby takes that on the DVI input I am told. Just frame doubles the 24 pfs. I use that method on my Pearl.

Is the dvi-d port just as sharp as the hdmi? I attached my lens (prismasonic v1000) setup

Yes. The difference is that DVI(D) won't do audio where HDMI does both. You can even use an adaptor from DVI to HDMI if you like.

Also HDMI 1.3 has Deep color compatibility, 3 main color space settings, YcBcR 4:2:2 YcBcR 4:4:4 and RGB compared to DVI-D with just RGB...

IMO & with my Calibrated (Video chain) setup when it comes to pic quality running HDMI 10bit YcBcR 4:2:2 is far superior to DVI's RGB,

I have gone as far as comparison's showing the difference to people that have been in my theatre, and when switching between 10 bit YcBcR 4:2:2 and 8bit RGB they easily allways pick 10 bit YcBcR 4:2:2...

Cheers...

Hey guys,

Is it best to have the scaler before or after the AVR receiver? I'm running a samsung
up5000 to the dvdo VP30 , to the onkyo sr605 receiver, and then to a sony ruby which also includes a anamorphic V1000 lens.

Usually after. Does your scaler have an audio only out as well as the video out? The reason I ask is that sometimes you may experience audio sync issues if running everything out of the AVR first then connecting the VP.

I'll use DVDo EDGE as an example:

You connect eveything to the VP, then run a video HDMI lead to the display and an audio only HDMI to the AVR. This keeps picture and sound in sync.

I tried before and ran into audio issues with the audio cutting off, and it also did not pass through dts-hd and truehd, so when I set it up after I got all my audio formats back. Now my next concern is if it's better to run my video out of my samsung up5000 directly to the AVR and then to the projector or run it through the scaler after the avr. What would give me better 1080p PQ? I know if I do it this way I have to build a lens sled to go from scope to VC 16x9. But in the image PQ is not better bypass vs scaling then I'll keep the scaler in my system.

If there is improvement to be made, the VP should handle that. Generally video processing (like that in an AVR) is bypassed once the signal is 1080p/24 as there is not too much more that can be done without a dedicated VP as you have.

Your VC lens does not need to be moved from the light path for CIH. It will be for CIW. So in the end, what are you trying to achieve? CIH or CIW?

So generally, it is: source > AVR > VP > Projector.

that's great!

my questions are:

1) if i buy a 2.35:1 screen will 2.35:1 movies take up the entire screen?
2) how would a 1.85/1.78 movie show on a 2.35:1 screen?
3) how would AR movies greater then 2.35:1 (i.e 2.40 or 2.39) show?

Really depends on your setup. How are you accomplishing the CIH? Zoom, Lens, scaler....

Zoom-You can fit any aspect however you want on the screen

Lens and scaler-1)yes 2.35 will fit perfect on the screen
2) 1.78 will be in the center of the screen with black on either side, 1.85 will also have slight black bars top and bottom(unless scale alittle zoom in for that aspect)
3)2.37,2.39,2.40... fit full width with small black bars top and bottom (unless scale alittle zoom in for that aspect then slight cut off the sides but fill the entire frame)

2.35:1 Constant Height Tutorial (with pictures).

which would be the more preferred way without having to buy an anamorphic lens?

Hey Cavx,

I'm noticing some video noise in my image an was wondering if this could be related to the way I have my system setup or equipment setting. The below is my equipment setup.
samsung up5000, to onkyo sr605 rec., to vp30 scaler, to sony ruby, and out through a
v1000 lens. ( ALL HDMI ) I'll post my samsung, vp30, and ruby setting sometime today. I got to go take wife and mother in-law to airport.

What happens when you go samsung up5000>vp30 scaler>onkyo sr605 rec>sony ruby>v1000 lens?

I lose the true-hd and dts-hd audio, but the image improved a little. However, when I turned off the auto iris it went away.

So problem solved?

yes......I also think my problem stemed from calibrating the iris to bright, so when i reduced the iris brightness I was able to go back to automatic iris.

Should I build a sled or try to make my VC Lens fixed by using my vp30 scaler. I just got finish upgrading my firmware in my vp30. When I pass 1080p through my scaler to my ruby the picture looks great but my image does not fill the screen vertically. I know it's my lens set to VC that's causing this, so the question is how can I bypass 1080p and fill the screen on a scope film and not move my lens? 1.78 looks great by the way.

Being a VC lens, your projector needs to be back as far as one would if zooming or so that the projectors native 16:9 image is edge to edge. When you turn the knobs to compress, the image will now fill your scope screen.

would it be better to setup the lens (VC) for 16x9 media to view on a scope screen and use a sled to move the lens out of the way for scope movies? I had this setup great at one time going to the scaler 1080i, but when I bypassed the scaler playing around I found the image to be better in bypass then letting the scaler scale the image. I guess I'm going to have to deside if I want the lens in place all the time and use the scaler or use a sled an move the lens back and forth. The light overspill will take getting use to also if I go the sled route, but moving the lens will solve that.

No. The light beam from the projector is 1.78:1. When compressed by the lens, the light is now 2.37:1, however the height is now reduced by 25% simply due to the fact that this lens is a VC, not a HE. If you move the lens for Scope, all your doing is the zoom method. The idea of emplyoing a lens is so that you can use the full panel for Scope and not throw 25% of the vertical rez off the screen. Does that make sense?


If your using a Scope screen, then the best way to do this is to set the lens for compression mode, fill the width of the Scope screen with image (full panel + VC lens) and simply scale the image for 16:9.

Otherwize lose the Scope screen and go back to a 16:9 screen and you can use full panel for both 16:9 and Scope.

If your using a Scope screen, then the best way to do this is to set the lens for compression mode, fill the width of the Scope screen with image (full panel + VC lens) and simply scale the image for 16:9.

Otherwize lose the Scope screen and go back to a 16:9 screen and you can use full panel for both 16:9 and Scope.[/quote]


I have my screen and projector setup like this right now, however, my scaler is set to 2.35 display and screen, so I guess I need to change it to 16x9 screen and display and compress the image veritcally or 2.35 screen and 16x9 display?

[quote=CAVX;17397839]No. The light beam from the projector is 1.78:1. When compressed by the lens, the light is now 2.37:1, however the height is now reduced by 25% simply due to the fact that this lens is a VC, not a HE. If you move the lens for Scope, all your doing is the zoom method. The idea of emplyoing a lens is so that you can use the full panel for Scope and not throw 25% of the vertical rez off the screen. Does that make sense?

I understand compressing the beam from 1.78 to 2.37.1 via the lens. The problem for me is when i go to 1080p bypass on the scaler with the lens in VC on a scope movie the image looks like it's scope on a scope screen. wow.... I might need to pick up a scaler that will accept 1080p and scaler it. Looks like I need to play a little bit longer. What the hell...i'm 50 today so I might as well have some fun.

Again, Happy Birthday. So maybe that is what you need to get yourself - a new scaler that does 1080/24P

I have a chance to buy a isco 1.33x IIIL Lens would It work with a sony ruby or keep my prismasonic V1000 lens?

Will work perfectly with that PJ. If you don't want it, send them to me, I might.

Going from a VC to a HE will require you to change your throw as well.