Comet C/2020 F3 (NEOWISE)
Taken by Jason Evans on July 17, 2020 @
Eastleigh, Hampshire, UK
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2020:07:18 18:46:22
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Details:
I am blown away by some of the incredible images in the galley, whilst I cannot match the quality, it's not a competition, but they do inspire me to try to improve my own images.
I noticed a lot of people use the stacking technique, so decided to give it a go myself.
I downloaded the free Deep sky stacker software and found a nice tutorial for beginners how to use it. Whilst I had heard of certain terms like lights, darks, flats etc, I had no idea what they meant.
So this is my first serious attempt, I did have a go last week but was lazy and skipped some of the steps. I did notice afterwards that I had made some mistakes, not with that stacking itself (at least I think not!) but my camera settings were wrong, so an important lesson learnt. I hope I get another opportunity to try again this time with the correct settings.
I am not sure how much difference it would have made as it was just I did not use the widest aperture (had it set on F/3.5 should have been F/2.8 and also i had it set on AI servo for moving subjects I think I should have had it on one shot for still subjects(although the comet is hardly still!)
Despite those mistakes, I do believe the stacked image is an improvement compared to a single exposure, so I must have done something right. I have included one of the single exposures I rejected due to a satellite streak, just to show the difference.
Canon 70D with Sigma 105 macro
ISO 1250
F/3.5
38 x 4sec exposures
Photographer's website:
No URL provided.
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