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-   -   Water and oil anamorphic prisms (https://www.dvinfo.net/forum/alternative-imaging-methods/40655-water-oil-anamorphic-prisms.html)

Oscar Spierenburg June 26th, 2005 06:50 AM

I am working on my new (static) adapter with the micro wax, so I'm reconsidering the anamorphic plans. I found out something interesting.
You need two water prisms to correct the color aberration. I don't know how it works, but I remember reading somewhere it has to do with the different speeds of the colors of light. So I was thinking, the closer the image to the lens, the less aberration it should have.
It turns out to be true, if you put one water prism very close the an image (like a GG) you don't see any aberration.

With this new idea, I'll start doing some tests this week. It would make everything much easier and smaller, because you'd only need one prism between the GG and the camcorder.

Leo Mandy June 26th, 2005 08:04 AM

Do you have enough room to put it between the GG and the DV camera - is that what you meant? I wonder how they manage to do it on film where they put it in front and do not have the colour problems there?

Oscar Spierenburg June 26th, 2005 08:19 AM

It's not so big, so there should be enough room to put it. I made a front one just like the old ones for movie camera's, the aberration is gone with a second lens, but that makes the thing pretty big( and they were very big on movie cameras http://www.widescreenmuseum.com/wide...5_evamarie.jpg).

Leo Mandy June 26th, 2005 08:42 AM

Try putting that on a Steadicam! Ouch, Garret Brown!


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