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Message: <blockquote data-quote="WJC" data-source="post: 3194135" data-attributes="member: 25191">That's why, in post #11 I mentioned the bad Ju Jus that would come out of looking into such an instrument at a skewed angle.Omid: I know you want to be on the cutting edge of cutting edges. However, there are real-world problems that haven't been solved, yet. You're much more likely to make money on solving THEM than, or as one great (also VERY humble) opto-nerd likes to say: "creating complex solutions to non-existent problems."If you need a real-world challenge, come up with an inexpensive way to eliminate field curvature, distortion, and CA all at once. You have Zemax; get to work. If you can pull that one off, you will be a rich and sought after dude!Bill</blockquote>