circular image instead of rectangular image

gryffin13

Member
2013-05-09 6:01 am
I have placed all of my lenses (two fresnels, one triplet) at their correct distances. I have the image in focus, and I've moved the distances to double check, I have them set up where they need to be. The problem is that what should be a rectangular image of my lcd, is getting cut off somehow and only shows a circular image. Now the light isn't being directly blocked, I know this because I have placed different objects around the lenses to see if they show up at the border, as well as the fact that the light isn't cut off cleanly like it would if something was blocking the light. But I don't know what is making it do this. Are my lenses warped? Or is it defects? Anyone have any idea what is going on?
 

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