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Thought this might be of interest to some.
East Midlands, UK, 22nd October.
63 (of 71) x 60s, ISO 1600, Canon 5D Mk IV + Canon EF 100-400mm MkII at F5.6
30 Flats, 25 Bias & 23 darks.
No filters
Obvs more integration needed; weather has been rubbish... but maybe I'll hold off on buying a decent refractor for now after my woes with the SW ED80?????
Kind regards
Stephen.
Could you remind me briefly what your woes were about? Usually a refractor is quite nice in the sense of not needing a lot of correction.
Could you remind me briefly what your woes were about? Usually a refractor is quite nice in the sense of not needing a lot of correction.
Hi Vincent,
The ED80 "woes" were the the rainbow artifacts from using flats, amplified by field flattener use as discussed here:-
So far so good usung the Canon lens. It is a very sharp lens despite being a zoom.
Regards,
Stephen.
WOW! Nice shot.
