16:9 with your 4:3

  • Thread starter Thread starter Jestorius
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Re: 16:9 with your 4:3

Looks like flexible fresnel. A bit like those sheets you can put in the back window of your van to give a wider view.
 
Re: 16:9 with your 4:3

Interesting....

We got a similar thing i russia where we put a screen in front of our tv's to make the image bigger. Could it be something like that? What is plastic folie? Is it a spesial type of plastic made for this purpose? Whats the benefits of this compared to using a regular conversion lens?

_Vladimir
 
Re: 16:9 with your 4:3

My guess would be that the stretch of the plastic produces a light-bending effect similar to that of a fresnel lens. I wouldn't know the physics of it, but I know a lot of polymers have light-modifying properties (think of polarizers, beam-splitters, plexi-glass used in structural stress analysis), so it wouldn't surprise me. The most straightforward explanation would be that with increase in viewing angle (measured from the normal vector to the foil's plane), the light-bending would also increase, simulating the aspherical (anamorphic) lens.

Since it is plastic, I'd be surprised if the image quality is any good.

It's the first time I've seen anything like that, though...
 
Re: 16:9 with your 4:3

That has got to be the lamest thing Ive seen ever. Well, not ever.

Plastic? WTF? Someone help me understand? I cant even see the lens. Is that tupperware over the barrel? WTF?
 
Re: 16:9 with your 4:3

Check out these threads:

http://www.diyaudio.com/forums/showthread.php?s=&threadid=4677
http://www.diyaudio.com/forums/showthread.php?threadid=16467

Might help to explain what this guy is trying to do.

Also, as to how these things work, think of how light is bent by passing through water or glass. Imagine bending only along the horizontal axis and leaving the vertical alone. This is what an anamorphic lens does. It refracts the most on the outside edge and none at the very middle.
 
Re: 16:9 with your 4:3

Mr. Tom Jones from the norwegien forum he posted the following:
He was showing some video taken with a Pd150 and this plastic fantastic staff to a proff. cameraman from the norwegien national tv. He tested the video with a vectorscoop and all the curves was just fantastic. Much better than JVC's nativ 16:9.

I got the plastic now and I gonna test it with my PD150. If it works to me than it gonna work to you with your DVX100. And you can forget the $800 extra to the anamorphic lens from Panasonic.

I have a Century 16:9 lens but I'd like to know if it works.
 
Re: 16:9 with your 4:3

[quote author=Jestorius link=board=Events;num=1093975408;start=0#8 date=09/01/04 at 08:21:14]. If it works to me than it gonna work to you with your DVX100. And you can forget the $800 extra to the anamorphic lens from Panasonic.

[/quote]


Sorry, not a chance. It would be like trying to focus through a glass of water. I just don't see myslef strapping a piece of plastic to my $3000 camera just to get anamorphic. Might be fine if you had a $100 camcorder and you just had to shoot full res anamorphic, but if you have already spent this much money on your equipment, why muck it up with a piece of renals wrap over the lens.
I just don't get it.
 
Re: 16:9 with your 4:3

scharky - you don't have to!!!

I have an Century anamorphic lens but I still would like to know if it works. And it works, and you don't put the plastic folie over the lens, you use it as a filter in the mattebox.

And... money does metter ... don't tell me it doesn't.
 
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