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post #1 of 12 Old 01-17-2012, 04:58 PM - Thread Starter
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Here's a few pics snapped last week. Didn't get over to see any of the other 2.35 panels. Saw the Mits, Optoma and JVC 2.35 demo's among others. New 4K JVC's look real good. I prefer Panamorph's VC lenses over there HE's. The JVC's demo was a 4K and a 3D demo on side by side 8ft wide screens.





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post #2 of 12 Old 01-17-2012, 07:14 PM
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Originally Posted by coolrda View Post

I prefer Panamorph's VC lenses over there HE's.

Image quality or cosmetics?

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post #3 of 12 Old 01-17-2012, 07:56 PM - Thread Starter
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Hard to tell without side by side comparison but the image quality was the best I've seen from a prism. It really makes for a clean retrofit and next to no barreling. This was with the 4K projector. Walked up to a foot from screen. This is a highly recommended option if a Cylindrical is out of the question.
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post #4 of 12 Old 01-17-2012, 09:09 PM
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Quote:
Originally Posted by coolrda View Post

Hard to tell without side by side comparison but the image quality was the best I've seen from a prism. It really makes for a clean retrofit and next to no barreling. This was with the 4K projector. Walked up to a foot from screen. This is a highly recommended option if a Cylindrical is out of the question.

Did you notice any CA? Are Panamorph's VC lenses now corrected for CA?

There are still two prisms required. The VC works well because the prism rotation is vertically compressing and not horizontally expanding. Barrel occurs with this lens as pincushion occurs with HE lenses, but there is significantly less because the VC needs a much longer throw to project the same size image as the HE lens Horizontally, edge to edge should be perfect because there is no optical magnification in that plain. What did the verticals look like?

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post #5 of 12 Old 01-18-2012, 01:10 AM - Thread Starter
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Quote:
Originally Posted by CAVX View Post

Did you notice any CA? Are Panamorph's VC lenses now corrected for CA?

There are still two prisms required. The VC works well because the prism rotation is vertically compressing and not horizontally expanding. Barrel occurs with this lens as pincushion occurs with HE lenses, but there is significantly less because the VC needs a much longer throw to project the same size image as the HE lens Horizontally, edge to edge should be perfect because there is no optical magnification in that plain. What did the verticals look like?

That was the first thing I checked. About a 10 second stare down from 3ft back revealed essentially a perfect vert overshoot on frame. Throw was about 4xPH. As you mentioned the the VC allow longer throw which can go along way towards helping geometry. I would highly recommend this tandem even with a 4K unit.
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post #6 of 12 Old 01-18-2012, 01:59 AM
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Is the barrelling that occurs horizontal like HE lenses or vertical?
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post #7 of 12 Old 01-18-2012, 02:10 AM
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Quote:
Originally Posted by coolrda View Post

That was the first thing I checked. About a 10 second stare down from 3ft back revealed essentially a perfect vert overshoot on frame. Throw was about 4xPH. As you mentioned the the VC allow longer throw which can go along way towards helping geometry. I would highly recommend this tandem even with a 4K unit.

Sounds promising. The X30, X70 and X90 only V stretch for 1920 x 1080 mode (2D and 3D?) and not 4K from all sources on the internet. So if they were using the VC Lens, did they have an external scaler or were you simply watching HD not 4K?

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Is the barrelling that occurs horizontal like HE lenses or vertical?

Like pincushion, it is actually on all 4 sides, but because of the longer throw required, it is less obvious than pincushion with a HE lens at the same size image. This is why you can use a VC on a flat screen with no issues where you do see pincushion with HE lenses.

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post #8 of 12 Old 01-18-2012, 09:12 AM
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I had their VC lens first and as a great starter lens it has HORRIBLE CA the colors were shifted several pixels from eachother. Not terribly noticeable watching material but fringing and grid was Bad. My corrected HE 380 is much better perfect yes pincushion but some setup that is all but gone.

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post #9 of 12 Old 01-19-2012, 10:20 PM
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Originally Posted by Nasty N8 View Post

I had their VC lens first and as a great starter lens it has HORRIBLE CA the colors were shifted several pixels from eachother.

Was that the older "plastic" version or the current glass version?

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post #10 of 12 Old 01-19-2012, 10:31 PM - Thread Starter
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Quote:
Originally Posted by CAVX View Post

Was that the older "plastic" version or the current glass version?

I'm sure he was comparing the 380 to the old plastic lens as talking to Shawn Kelly he said the 200 shown above is their best lens.
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post #11 of 12 Old 01-19-2012, 10:38 PM - Thread Starter
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Off topic but the high lite videowise was the Sharp 8K. Staggering. My iPhone video and pics from 1ft away are incredible. They had a 8k source, 33MP showing on the 7680x4320 display and it was finally a display that rivals human vision. Just fabulous.
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post #12 of 12 Old 01-20-2012, 02:31 AM
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Quote:
Originally Posted by coolrda View Post

I'm sure he was comparing the 380 to the old plastic lens as talking to Shawn Kelly he said the 200 shown above is their best lens.

Yeah I was told the same by Shawn when I met him in 2010. They are two different beasts and both have their pros and cons.

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