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My first ever sub with no differential flexure


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Thanks to my new TS 9mm Off axis guider.:)

Until tonight I was limited to a maximum of 10 minute subs at 1200mm fl

because of differential flexure in my setup.

At 20 minutes this is the longest usable sub I have ever taken at 1200mm fl.:D

Set up the OAG at night no problems and on this test finding a guide star with my DMK21 was no problem (I had about 4 to choose from).

This should now open up a whole new world of Ha imaging to me, I am a happy chap.:)

The 20 minute sub attached is a screen stretched JPG straight out of maxim DL.



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