Hi all,
After completing the 10 inch, after looking at Mel Bartels website I was inspired to make a 6 inch f2.8 ultra fast scope!!!
I am currently hogging it out, at about 2.8mm sag now but I have to reach 3.4mm. I think the plan is to get to about 3mm sag, pour the tool with dental plaster directly onto solid unglazed tiles and remove the last 0.4mm while making it spherical. Orr get to 3.4 then move onto tiles?
Hope you enjoy this thread!!!
Also, is making a coma corrector feasible? It seems pretty simple optically from what I have seen (only 2 elements). Hopefully Bratislav or Stefan can answer this question
