>>4295528And I have this 36" (914mm) f/6.3 that I'm itching to try out, just need to engineer a tripod mount for it that will support its heft (somewhere around 8-9kg mostly concentrated at the front). No idea how well the focussing is going to work, previous owner bodged a helicoid from some random lens onto it but I don't think it'll have enough travel.
