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DavidinFL
member
Reged: 08/28/09
Posts: 53
Loc: Navarre, FL
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Foucault pic opinions
09/20/09 09:56 PM Attachment (90 downloads)
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Hello,
Never being satisfied with what I have, I decided to build a Foucault tester and use it on the mirror from my XT8. It's marked with a center spot and obviously has dust on it. I built a simple slit-less tester with a LED.
I've attached some pics that I took holding the camera behind the knife edge. They're a little blurry due to my hand shaking but I hope they are usable. I'm just getting into analyzing Foucalt images and am not sure what I'm seeing in the pics. There seems to be a region in the middle that always seems to stand out in the pictures. I'm not sure about what that means. If someone(s) could write a little bit about the pictures I would appreciate it.
Thanks!
David
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Orion XT8 - Orion StarMax 102 EQ
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