[robz (Robert)]

Hi guys.
Tried the S.A. on a 5.1 inch Celestron F5 reflector last night. I used a standard Skywatcher brand 25mm Super Plossl E.P.

The result was not good : I rotated the e.p. through 360 degrees and at best, could get a very(very!) thin spectrum on some of the brighter stars.
Collimation is good as the stars were fairly pin point and yes, I did focus on the spectrum not the stars.

I was under the impression that the S.A. was useable for some visual use, but it was impossible to see any detail in a spectra that was so thin height wise as well as short?

I estimate the S.A. to first element (bottom of e.p.) to be approximately 30mm. Could this be the problem or is there some other factor I am missing here?

Rob.