Hi all,
I'm trying to use foucault1-2 image analysis software, but I've run into trouble getting enough light back to fully illuminate the pupil through ROC. Either side is ok, but at focus produces a very small image. It's a 22" f3.745 mirror, and I've tried small and jumbo LEDs to try & get a larger return spot. It's not the LED, and I am able to get images. The perplexing thing is that at ROC, I don't get a clean flip, and I see quite a bit of extinction from both sides when moving the KE. Am I doing something wrong?
I'm trying to use foucault1-2 image analysis software, but I've run into trouble getting enough light back to fully illuminate the pupil through ROC. Either side is ok, but at focus produces a very small image. It's a 22" f3.745 mirror, and I've tried small and jumbo LEDs to try & get a larger return spot. It's not the LED, and I am able to get images. The perplexing thing is that at ROC, I don't get a clean flip, and I see quite a bit of extinction from both sides when moving the KE. Am I doing something wrong?
