M13 in SkyWatcher Esprit 120

Here is an image of a favorite, taken from our cottage in Marion Bridge. I took this to check the equipment setup and kill some time before the main target for the evening cleared the trees. The scope used was a new  SkyWatcher Esprit 120 APO refractor and the stars are perfect to the edges of a very flat field. No flats were applied during the calibration with only a minor bit of darkening at the very corners.. Click on the image to compare this with an image taken using an 8 inch reflector from a more urban setting.
Object M13 RA 16:41.7 Dec 36:28
Exposure 50 minutes (10 X 300 seconds)
ISO 1600
Camera Canon 60Da DSLR
Optics SkyWatcher Esprit 120  f/7 APO refractor with  a  focal length of 840 mm

Marion Bridge, Nova Scotia


Calibration, stacking, arcsinh stretch in Images Plus . Masked noise reduction. Image binned and cropped for web display.