Geees....I reckon it probably would've been ok as in this type of imaging the very narrow bandpass of each filter negates any chromatic abberation that you might get in normal LRGB imaging. My 102mm is F/5 and so is my 200mm reflector both of which are going to do a lot more of this.. I cant wait to do my next one, but exposure time is at least doubled or tripled, depending on the object of choice, except for Orions and Eta Carinae Nebs which are very bright any way. It's great to do an alternative to LRGB and some of the colour images are awesome. It wont be too much longer and I'll have out grown the DSI so I'll have to convince the Petticoat Government that I need to do another spend.
