Yes, that is the dilemna at the moment
I will make a spectroscope of some sort this year. What form/ shape or materials used is yet to be determined.
I'm looking very closely at the LHIRES2 in Buil's literature and will be making something along those lines...........only ''simpler'' and as compact and cost effective as possible.
No doubt there are many future spectroscope builders out there who are wanting something simple but also cheap...............tall order?...........maybe.
Wish me luck
