I fired up the Hyperstar 4 last night fully expecting the ASI 2600 MC Pro would have water vapour in the sensor chamber – only to find – it was fine!! So I have only got to sort out the 2600s on the 2 x Canon 200mm prime lenses, and I can still image on the Hyperstar 4 in the meantime – lucky!!
So last night I chose the Pelican nebula and 5-minute subs (equivalent to 15-minute subs on the array) and managed to get 20 of them. The data looked great and I added it to earlier data using Registar to get the image you see above. Not much (if any) image improvement with the extra 100-minutes of data, which is to be expected when there is probably in excess of 10-hours data in the image I combined it with. So I am once again in the region of diminishing returns with this object and if I have any sense (which is questionable) I should consider this one as well and truly done.