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Old 04-26-08, 07:18 PM   #6 (Link)
 
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Re: Chromatic Aberration


Quote:
Mark Techer wrote: View Post

If the prisms are aligned 100% cirrectly, then CA will be symmetrical. Like you, right now, I seem to have more on the right hand side than the left, but I know that I need to remove that lid yet again. I have the image prefectly framed right now, so not game to alter the prisms just in case I mess up what I have.
Yes, my feelings exactly..The overall image is so good that I don't want to mess it up..
But knowing me, I won't be happy until I try and make it even better.

Quote:
Slightly off topic, but thought I would share (actually tease). I have have prototype plastic case for my lens (MKIII) and have been experimenting with a cylindrical correction element, that, for these initial tests anyway, seem to almost completely remove CA.
Mark..that would be a major achievement if you can almost eliminate CA..
Your lens would then be right up there with the best of them..

By cylindrical element I presume you mean, as in a circular lens..like a filter shape..
Would this be near the projector lens..almost like an attachment?..Would it be something that could be added to your current models?


Quote:
You can see a photo of the prototype HERE...
That's quite an improvement over the MDF case..very nice
One of the first things I did with my lens was to line the sides with black felt...It does make a difference..


Home Theatre....The never ending story!
Prof..

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