woven sonnet
im looking for a coma corrector for my f/5 newt, now i'm using a dslr with a APS-C sensor and coma is taking half of my frame, but im worried that glass elements will introduce color fringing. Im asking for some sort of advice if you used this corector, i tried looking it up on astrobin by no results there. if someone could send some shots that used that corrector so i can see how bad the colour fringing is id be thankfull. also, do i understand it right? all those moving parts the, knobs and all, that allows to set the f/ratio at witch the corrector does said corecting? if so, that means i can use it in multiple different scopes interchangebly?
tall osprey