I have got the 0.8 FR with my SV80 and while I do like the faster/wider set-up I do notice stars in the corners to be less than perfect to put it lightly.
I have been considering other flatteners and/or reducers. I see now that there is the SFF3-80. I haven't seen many examples of images from this flattener. I'd like something that will give me pinpoint stars to the edges of crop frame sensors or better.
I have been considering other flatteners and/or reducers. I see now that there is the SFF3-80. I haven't seen many examples of images from this flattener. I'd like something that will give me pinpoint stars to the edges of crop frame sensors or better.