ronchi test on telescope mirror 16in f4.8 1in thk

mainly looking for stig.
while its moving the image wobbles, that's not what I looking for
when at rest looking for S shape

[@satyajitbhadraroy7723]

@pinbout
Dont you think the mirror is a bit astigmatic?

[@Pinbout]

Not at all. When at rest, you would see the S, not while moving the test stand.

[@andrecarvalho6460]

This mirror is bad, right?

[@Pinbout]

André Carvalho au contraire mon frere 1/7~

[@Pinbout]

André Carvalho this is some other atm project I picked up cheaply. The shake in the lines is my rig as it’s moving.