16 December 2020



Canon M50: EF-S 55-250 IS II; f/5.6; 1/5", 250mm, ISO 800

I'm playing with the settings and, without success, trying to get the ring gap on Saturn to show up.  It means sacrificing the Galilean moons in the shot, but it'd look so cool!

I'm not quite there yet, but you can really see Saturn's outline now.

Canon M50: EF-S 55-250 IS II; f/5.6; 1/40", 250mm, ISO 800

It's possible as I reduce the amount if light getting in that I might just be able resolve the banding on Jupiter.

At present I am hampered by needing to go inside and put the images on a computer to see the results.  The teeny screen on the camera doesn't zoom in far enough to see.


  1. Archibald Barasol16 December, 2020 14:27

    Just a thought... Can your camera hook up directly via USB to the computer where you could ‘edit’ live?

    1. I don't think so. The manual is embarrassingly shitty.

      Canon really messed up the manual, I have figured out functions on the M50 from knowing how they worked on my SX20... and those functions aren't mentioned in the M50 manual.

      It's possible that I can crutch it with an app on the laptop connected via blutooth.

  2. I think seeing (how steady the air is, in case that's another term that gets renamed between cameras and telescopes) is the problem. I tried a bunch of settings, and got my best result at 300mm, ISO 1600, f/5.6, 1/30s. Several other shots at the same settings didn't show the ring gap.

    If I'm right about the cause, the answer is to use a tripod and take lots of shots. At least you're not using film and paying for every smudged picture.

    1. You ain't kidding about the film. I've got two 128gb cards for this camera and have taken 2274 pictures with it. I think the three digital cameras I've owned in the past 14 years have paid for themselves in developing costs.

    2. I also think the steadiness of the air is going to get worse as they get closer because they're going to be nearly at the horizon and in the pink-green section of twilight at closest approach.


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