With the 200mm/M26C Trius combo in portrait mode I managed to grab 10 x 4-minutes of the Castor/Pollux region after 3-hours of setting up (focus mainly) in the freezing cold.  The chip turned out to be not flat for this image, so the next morning I brought it indoors and flattened it pretty precisely.  Now waiting for the next clear night to see how well (or not) I’ve done.  Would like to grab a 2-framer of the M44 region if at all possible.

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