Hawksmoor

Having read Ken Harrison's excellent book Astronomical 'Spectroscopy for Amateurs' at least twice and innumerable visits to Robin's 'Three Hills' internet site, I have decided to haul myself up on the shoulders of giants and try to make yet another spectrograph this time involving a homemade adjustable slit! After a lot of deliberation I have come up with a modular design based on the 'Watkis Spectrograph'. I am currentlyputting together a heap of parts mostly gleaned from old bits of redundant/broken kit or stuff purchased from the NET in days gone past when I thought 'That's too good an offer to miss' (followed by a long languish in a box in the shed). Each module appears to pass the Transpec V2 spreadsheet test - so fingers crossed. At least I will have a project to keep me going through the winter.