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Cylindrical A-Lens Owner's Thread - Page 14

post #391 of 623
Quote:
Originally Posted by oztheatre View Post


Hi Frank, what design do you mean?

The Mk 4
post #392 of 623
Quote:
Originally Posted by Franin View Post

The Mk 4

Mr Liuzwen had the first one that I ever saw...

It is cost effective to leave the glass square or rectangular as it comes in that shape to begin with, glass blanks. To make it round like an isco would cost more, but round looks nicer imo.
post #393 of 623
Quote:
Originally Posted by oztheatre View Post


Mr Liuzwen had the first one that I ever saw...

It is cost effective to leave the glass square or rectangular as it comes in that shape to begin with, glass blanks. To make it round like an isco would cost more, but round looks nicer imo.

Yeah I'm a big fan of the round look.
post #394 of 623
Quote:
Originally Posted by Franin View Post

Yeah I'm a big fan of the round look.

Me too.

But there are practical reasons as well, mainly being that they are easier to fine-rotate when setting up.
post #395 of 623
Hi Everybody,

After a long and patient wait, my Aussiemorphic MkIV lens arrived last week.
I made a simple bracket adapter from 10mm thick aluminium to allow the MkIV bracket to interface with my existing manual lens slide.

I got the MkIV "up in the air" a few days ago and although I still have to play with alignment and the like, I am most impressed.

It's a very different beast to my old home made prism lens.
Screen shots will be provided, but in the meantime here are some pics of the lens in front of my Sony VPL-VW60 projector.

http://www.users.on.net/~michaelcarey/pics/HT/MkIV/

I am very happy to join the ranks of a cylindrical 1.33x anamorphic lens owner.

Michael.
post #396 of 623
Quote:
Originally Posted by MichaelCarey View Post

Hi Everybody,

After a long and patient wait, my Aussiemorphic MkIV lens arrived last week.
I made a simple bracket adapter from 10mm thick aluminium to allow the MkIV bracket to interface with my existing manual lens slide.

I got the MkIV "up in the air" a few days ago and although I still have to play with alignment and the like, I am most impressed.

It's a very different beast to my old home made prism lens.
Screen shots will be provided, but in the meantime here are some pics of the lens in front of my Sony VPL-VW60 projector.

http://www.users.on.net/~michaelcarey/pics/HT/MkIV/

I am very happy to join the ranks of a cylindrical 1.33x anamorphic lens owner.

Michael.

Welcome Micheal you have a very nice lens there,congrats
post #397 of 623
Quote:
Originally Posted by Franin View Post

Welcome Micheal you have a very nice lens there,congrats

Thanks Frank,

It's lived up to my expectations... and then some!


Michael.
post #398 of 623
Thread Starter 
Quote:
Originally Posted by MichaelCarey View Post

Thanks Frank,

It's lived up to my expectations... and then some!


Michael.

Congrads and enjoy.......CinemaScope perfection.
post #399 of 623
Quote:
Originally Posted by CAVX View Post

Hey HJ, there is another GTG in Melbourne soon where I will be giving a talk on CIH and demoing the benefits of cylindrical lenses with adjustable astigmatism correction. Will I see you there?

I'd love to if you do a masked zoom vs A-Lens demo side by side or one after another or two of the same projectors one at a time, brightness eq'ed!
post #400 of 623
Quote:
Originally Posted by Highjinx View Post

I'd love to if you do a masked zoom vs A-Lens demo side by side or one after another or two of the same projectors one at a time, brightness eq'ed!

As long as the projector with the lens gets positioned to the correct throw ratio where there is little zoom used, why not!!
post #401 of 623
Quote:
Originally Posted by coolrda View Post

The one common factor in all mega-buck cinemascope home theaters is the use of a A-Lens, commonly a Isco IIIL. Most of the manufacturer endorse and even sell them as an add on kit. It makes sense as they what the best option for cinemascope. If this wasn't the best option the trade show demo's wouldn't be littered with these lenses. Mark's new lens is a CAVX MK4 and not a MK3a. Its different and better in every way.

I know Cineramax*(builder of megabuck theaters)will disagree with you.....

http://www.avsforum.com/avs-vb/showt...ight=cineramax* Enjoy!

If I was running a huge screen and needed the extra brightness I would get one too.....But I don't need/want a huge screen. The closest I like to sit is 1.65:1 screen widths with 1920 x 1080....if I did, I get CAVX's Mk4 or Aussie Bob's design that is looking revolutionary.

http://www.anamorphiclens.com.au/

I guess...just enjoy the hobby.....either way!!
post #402 of 623
Quote:
Originally Posted by Highjinx View Post


I guess...just enjoy the hobby.....either way!!

Spot on Highjinx!!
post #403 of 623
Quote:
Originally Posted by Highjinx View Post

I know Cineramax*(builder of megabuck theaters)will disagree with you.....
!!

Yeah but he builds different calibre of theatre. Hes in a whole different level, hes way above high end home theatres, rooms and equipment that majority of people will never have. Your talking about a whole different game here.
post #404 of 623
Thread Starter 
Quote:
Originally Posted by Highjinx View Post

I know Cineramax*(builder of megabuck theaters)will disagree with you.....

http://www.avsforum.com/avs-vb/showt...ight=cineramax* Enjoy!

If I was running a huge screen and needed the extra brightness I would get one too.....But I don't need/want a huge screen. The closest I like to sit is 1.65:1 screen widths with 1920 x 1080....if I did, I get CAVX's Mk4 or Aussie Bob's design that is looking revolutionary.

http://www.anamorphiclens.com.au/

I guess...just enjoy the hobby.....either way!!

The problem is I make a statement based on my experience and based on fact. You remind of a guy at work we call "One-up Guy". Everything you do, say or own he does better. Everyone knows is garbage, but he can't help himself. You know how ridiculous you sound making the statement about Cineramax. What's next, "hey coolrda, you think your the boss of the whole wide world but your not". How second grade-ish of you.

This started with me stating that using a C A-lens is superior to zooming. That hundreds agree with me, is gravy on the top. Point is I went in neutral and unfortunately for the pocketbook, came to that conclusion. I've compared my panamorph 752 to zooming and gave it a tie with the Isco crushing both. When you have the same gear and have spent hundreds of hours testing back and forth, then you can likewise comment. If you come to a different conclusion, that ok. I at least can respect that as yours. But using Cineramax, come on man.
post #405 of 623
Quote:
Originally Posted by coolrda View Post

The problem is I make a statement based on my experience and based on fact. You remind of a guy at work we call "One-up Guy". Everything you do, say or own he does better. Everyone knows is garbage, but he can't help himself. You know how ridiculous you sound making the statement about Cineramax. What's next, "hey coolrda, you think your the boss of the whole wide world but your not". How second grade-ish of you.

This started with me stating that using a C A-lens is superior to zooming. That hundreds agree with me, is gravy on the top. Point is I went in neutral and unfortunately for the pocketbook, came to that conclusion. I've compared my panamorph 752 to zooming and gave it a tie with the Isco crushing both. When you have the same gear and have spent hundreds of hours testing back and forth, then you can likewise comment. If you come to a different conclusion, that ok. I at least can respect that as yours. But using Cineramax, come on man.

Hey cooldra that's a good name "One-up Guy". I have a cousin who is exactly like that, if your theatre is worth x amount he knows someone that is worth
triple the x amount.
post #406 of 623
Thread Starter 
Thanks Franin. Btw, that's quite a stash of choice equipment you have there.
post #407 of 623
Quote:
Originally Posted by coolrda View Post

Thanks Franin. Btw, that's quite a stash of choice equipment you have there.

Thanks coolrda
post #408 of 623
I did a very quick check last night and I've taken the two greyscales attached. They were both taken within minutes of each other, nothing changed between runs apart from physically removing the lens. I left the aspect in my Edge set the same (4:3 for 16:9 squeeze) for this. I used my i1-LT with diffuser facing the screen having first created an offset using measurements off the screen. I'm using Chromapure Version 2.03 Professional. The projector is a JVC HD350, using a VideoEQ Pro for greyscale, gamma and gamut adjustments. The lens is an Isco II.

I think that's covered the technicallities. I know the i1-LT isn't the most accurate sensor (plus mine is about 2 years old), but it is the comparative results this is designed tos show rather than the absolute. I'm going to rent an i1 Pro in the near future, so if I remember I'll do this same test again then.

In brief the greyscale was slightly effected showing less red without the lens. The gamma was the same (within the bounds of repeatability) and there was a slight change in the measured colour gamut.

I hope this is of interest...I can't really tell any difference myself when watching with or without the lens in terms of colour difference/greyscale, so I don't bother doing a calibration for both cases. I do make any calibration adjustments with the lens in place however, as this is my typical viewing situation.

The left hand image is with lens and the right hand is without in each pair.
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post #409 of 623
Just the extra two images to show the luminance with and without.
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post #410 of 623
Thread Starter 
Thanks Kelvin. Using the same colorimeter, I had essentially no measureable difference between having the lens in or out. In my case with the Benq i have,having red push with the lens in, would be desirable since this is lacking in my current projector. In the near future, I'm hoping that a JVC RS40/Isco 3L combo becomes my video nirvana.
post #411 of 623
I think that RS40/IscoIII combo would be a very nice setup, you're a lucky guy.
post #412 of 623
Thread Starter 
Quote:
Originally Posted by Kelvin1965S View Post

I think that RS40/IscoIII combo would be a very nice setup, you're a lucky guy.

I sure hope so. There's always apprehension being an early adopter of new tech and buying something unseen. However, I'm really looking forward to 3D. This is a leap going from DLP to LCOS. But the initial feedback is positive
post #413 of 623
I tried to measure the ANSI contrast with and without my Isco II last night. I think there is something wrong with my method as I got 50% more with the lens in place. I used the AVS HD709 contrast test pattern (checkerboard) and 16:9 mode without the lens. To keep the size the same with the lens in place I selected 4:3 mode on my Edge VP. I now realise that this means there were two large black sections each side of the test pattern, which will have altered the white/black ratio reducing the APL and probably totally skewing the results (good as they are from a lens owner's POV ).

What test patterns have others used when doing these tests? I figured if there is a 2.35:1 ANSI checkerboard 50% white 50% black then I'd compare ANSI when zooming to that when using the lens. However I don't know how I can compare apples to apples with this 16:9 test pattern.

I know it's just for S&Gs but if anyone has a suitable process and/or test pattern(s) I'd be grateful.
post #414 of 623
Quote:
Originally Posted by Highjinx View Post

.if I did, I get CAVX's Mk4 or Aussie Bob's design that is looking revolutionary.

You forgot to mention the new Prismasonic. All three are similar design.
I do not know what the others will sell for but Prismasonic will offer aggressive pricing due to the economy. Something I have been waiting for for years.
This lens is currently in production & we will launch this lens for sale with special pricing shortly. Will post more information soon.
"Finally" no need to break the bank for a cylinder lens.
post #415 of 623
I'm certaintly curious to see what you've worked out with Annsi, but respectfully, AB's is not similar to any of them, Isco included.
post #416 of 623
Scott you made my point. He mentioned only two when there are three revolutionary designs. If all goes well with final production there will no longer be a need to spend twice the money for any other lens. My fingers are crossed.
post #417 of 623
OK... well good, you're welcome then . It's unfortunate all these guys couldn't have pulled (or better said, didn't pull) this together 2 years ago. The bottom is about to fall out of A-lens prices, relatively speaking, from 4 fronts. With different features, and I'm sure pros and cons to each model, but in any case, better than prisims at closer to prisim pricing. With the heavy metal (glass) big dogs still avail for those who can swing them.
post #418 of 623
Quote:
Originally Posted by GetGray View Post

With the heavy metal (glass) big dogs still avail for those who can swing them.

I think all the new lens will fair well if not better in some areas to the current big dog. We will see, I do not want to put the cart before the horse. If that proves the case ( will know soon with one ) there will be no reason to spend twice the money for the current crop of big dogs for the same performance and aperture. I am optimistic and excited to see the benefits of a cylinder lens finally hitting below the price point of some Prism based lens. As you mention regarding price, better late then never.
post #419 of 623
I think it's great that finally prices are dropping for these lenses. It will be good to see many more members jump on board the scope train.
post #420 of 623
Quote:
Originally Posted by Alan Gouger View Post

You forgot to mention the new Prismasonic. All three are similar design.
I do not know what the others will sell for but Prismasonic will offer aggressive pricing due to the economy. Something I have been waiting for for years.
This lens is currently in production & we will launch this lens for sale with special pricing shortly. Will post more information soon.
"Finally" no need to break the bank for a cylinder lens.

Ah!......that post was made before the new Prismasonic was announced.

So we have 3 new cylindercial lenses, The Cavx Mk4


The New Prismasonic


(BTW Alan I think the chrome bits on the stand should have a black option to reduce light reflection).....

......But only Aussie Bob's CrystalMorphic 5E has.....


.................wait for it......................

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