Also tested that it not only won't focus without the 2.5x corrector, but also even with a 2x barlows.
AR955 (1607 GMT+8) and the newly formed AR956 (1609 GMT+8):-


Very poor contrast, strongly processed.
Finally, a failed mosaic... when the sky is poor, the contrast is hard to maintain and it's next to impossible to make mosaic:-

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