› Forums › Spectroscopy › Flats (2);-) › flats!
1 December 2016 at 7:02 pm
#577696
![](https://britastro.org/wp-content/uploads/2016/11/picture-2092-1477996892-80x80.jpg)
Participant
Hi Kate
I did try a ring of led`s thinking that would be ok but instead got some weird lines which seemed to make things worse??.
Steve