Finally had some time to spend on some data that we took on the afternoon of the 21st. Taken through the  250mm RC using the Nikon D5100 DSLR. We took a couple of minutes of video, but find that Registax 6 won’t load any more than about 1450 tif files for processing.  Of the 3000 odd frames takes, I chose frames 1000 thru to 2399 and processed these. As with my terrestrial processing, you…