Attached below is a comparison between Rubinar 10/1000 and MTO-1000A (200% sized crop away from centre)
More or less the same, but Rubinar (left image) has less obvious diffraction pattern at brighter stars, and visibly lower CA away from the frame centre.
All in all, the mod is definitely worth the effort.
Last edited by bojan; 20-06-2013 at 08:01 PM.
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