Waxing Gibbous Moon, October 2019 via iPhone

October 7th, 2019, 09:15 p.m. local time

I didn’t realize until tonight that I had yet to try afocal astrophotography with my iPhone, which I got late last year.  This was a clear, cool-bordering-on-cold night, with the Waning Moon at a good evening location, so it seemed like the perfect opportunity to try it out.

My prior afocal attempts were with my previous Android Samsung phones.  Those were a little easier to place in the telescope smartphone mount because their cameras were centered on the phone, whereas the iPhone’s camera are off to the side.

I used my homemade Dobsonian with a 2″ eyepiece, my best one.  Once I focused the telescope and aligned the smartphone mount properly on all fronts, it was very easy to attach the mount onto the eyepiece.  I noticed immediately that there was no vignetting, which seemed, if my memory recalls, to have been much more of a nuisance with 1.25″ eyepieces.

I made a few minor touchups in PaintShop Pro and AfterShot Pro.



I write frequently about astrophotography, technology advice, and my other interests like science fiction. I have over 30 years of experience in computer programming, information technology, and project management.

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