Panamorph power buy..anyone? - Page 4 - AVS Forum
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post #91 of 108 Old 05-25-2004, 09:13 AM
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Is this new plastic Panamorph also fluid filled?
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post #92 of 108 Old 05-25-2004, 09:14 AM - Thread Starter
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Rgb:
No it's solid.
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post #93 of 108 Old 05-25-2004, 09:14 AM
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No. It is solid acryllic.

Someday maybe I'll actually WATCH my projector...
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post #94 of 108 Old 05-25-2004, 09:15 AM
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Bah. Beaten by mere seconds :)

Someday maybe I'll actually WATCH my projector...
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post #95 of 108 Old 05-25-2004, 09:15 AM - Thread Starter
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I got you back from the last time :)
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post #96 of 108 Old 05-25-2004, 09:17 AM
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The first batch has gone through so the wheels are in motion with these units. They are going into production. As the post says, lead time is about 8 weeks. They might be sooner but we want to cover in case there are any unforseen delays. We are still taking orders for additional batches which we will be sending in later.

Anyone who wants to get on board should please contact me.
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post #97 of 108 Old 05-25-2004, 01:11 PM
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Hi Jason,

I've go the older metal Panamorph with oil and have been always plagued by the vertical distortions and focus uniformity problems of that era - well, I think you know the story. Luckily, after years of waiting and so forth, I only ended up paying $100 more than your power buy price.

Anyway, I was wondering if this new solid plastic version is free from these distortions. I realize being solid, that the focus won't change over the period of a movie due to temperature (or will it?), but are we guaranteed an evenly focused image across the screen and no compression/expansion distortion vertically or the usual barrel/pincushion distortion? Have these models (or prototype) been tested? I just probably missed the threads on this, so I apologize if this was covered.

I was considering buying another LCD projector (HS20) and trying it first with the older Panamorph. Even with all its problems, it still produces a nice filmlike image which I've grown accustomed to. If I see a real advantage for 2.35:1 movies, I may consider this power buy (if not too late by then), but only if I knew I would be licking those other problems for good. However, now that I write this, throwing another $500 at this may be a foolish thing. Any chance of offering an upgrade price for previous owners? :D

Just curious, will the new Panamorph work on an older rail? Thanks.

Carey
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post #98 of 108 Old 05-26-2004, 06:04 AM
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I also would like to hear about the barrel distortion, focus uniformity, and linearity of this new Panamorph.

I also owned the original oil filled Panamorph. I did not like the non-linearity of the geometry it produced- i.e. if you displayed a grid of squares (Avia, HTPC, etc), the squares were vertically compressed more and more from the top of the image to the bottom. You could easily notice the nonlinear geometric distortion in movies, seeing car wheels change shape as they moved around the screen.
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post #99 of 108 Old 07-12-2004, 06:59 AM
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To dig this thread up... make sure to see the note at the top of the forum. Also, read my last post on the Panamorph sticky thread.

Someday maybe I'll actually WATCH my projector...
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post #100 of 108 Old 07-12-2004, 07:41 AM
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With the sticky thread above, Jason has a picture of the non-linearity of the geometry of the new lens. I was expecting much better than that when I went in on the powerbuy sight unseen. Needless to say, I am disappointed in just how much geometric distortion (or pincushion) whatever they call it is in the new Powerbuy lens.

Now I am wondering if we can somehow adjust/reduce the pincushion distortion by using an HTPC with video driver adjustments to compensate and still come up with a clean picture with no flaws. Anybody have any comments on this. I really don't want to have a fish bowl movie picture.

I didn't see anywhere on the Panamorph website that their "standard" includes such poor pincushion distortion. I am officially now worried about what my wife will think when she sees it. How come people didn't talk about this "flaw" when talking about Panamorphs?
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post #101 of 108 Old 07-12-2004, 08:02 AM
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Jason, is it possible that maybe you took a poor picture with your camera?
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post #102 of 108 Old 07-12-2004, 08:15 AM
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I have the U-10 (100?) Panamorph, and I do not have that barrel distortion. I have a slight bow curve in the upper RH corner, but I think it's my Z2 lens, not the Panamorph. (I see it without the Panamorph as well.)

I'm hoping that Jason has a setup anomoly, because that's not representative of my Panamorph experience.
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post #103 of 108 Old 07-12-2004, 08:18 AM
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I've got the U100, and my other issues aside at the distance I have now the barrel distortion is almost completely gone. I only see it with test patterns, never in real world veiwing.

Someday maybe I'll actually WATCH my projector...
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post #104 of 108 Old 07-12-2004, 08:25 AM
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Madpoet, How did you get rid of the barrel distortion? Did you run a HTPC? or did you just never have it in the first place. Was it not having the lens perfectly 90" straight up? I am new to this panamorph thing.....
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post #105 of 108 Old 07-12-2004, 08:28 AM
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I do run an HTPC, but I got rid of it by creating a longer throw ratio. The longer your ratio, the less distortion. That's why I cannot recommend the panamorph with a Panny 500. I got the long throw lens and moved my 500 back to the point where the ratio was close to 2.0 (about 1.95 I believe). It is still VERY slight in the test patterns.

Someday maybe I'll actually WATCH my projector...
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post #106 of 108 Old 07-12-2004, 08:38 AM
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With the Panamorph, does zooming on a lens increase the pincushion distortion? I own an X1 and right now do have a throw ratio of 2.0 (more by coincidence in getting rid of screendoor and having an industry standard 100" 4:3 diagonal screen than anything else. Does that mean that Jason had a shorter throw ratio? Jason never said on what projector he ran this pictures on. Maybe he should have shot the pictures on a different projector....
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post #107 of 108 Old 07-12-2004, 08:39 AM - Thread Starter
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edwardr132:
Be mindful that jason didn't tell us his throw ratio. It could be under 1.65. Given the slight distortion that he demonstrated I'm sure the image resolution and added brightness will make up the difference.
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post #108 of 108 Old 07-12-2004, 08:40 AM
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Well, hopefully there is no reason to panic......
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