February 26, 2017, 02:39:31 PM

Author Topic: Deep Sky Astrophotography  (Read 181792 times)

scyrene

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Re: Deep Sky Astrophotography
« Reply #600 on: January 15, 2017, 06:32:13 PM »
Finally I have something I don't feel too embarrassed to post. Here's my Orion Nebula...

This is a shade under 90 minutes' integration. Actually it's an unorthodox combination of 400mm and 500mm shots, as the Affinity stacking is pretty good at lining things up and rescaling. I started at 400mm (the 70-200 + 2x), then tentatively tried my 500 on the same mount, which worked fine.

I got the Star Adventurer, and it seems mostly what I wanted: easy and quick to set up, and with the weight capacity I needed. It's not go-to, but my go-to mount rarely went-to where I wanted anyhow, I never could figure out why.

80x30secs + 81x25secs both at 400mm, and 62x15secs at 500mm with an Astronomik LP filter (which fits in the 500L's drop-in filter), all ISO 3200 I think (all wide open, so f/5.6 and f/4 respectively). Preprocessed in Lightroom, stacked and normalised in Affinity, finished back in Lr.

We only get one clear night in maybe two weeks here, so it'll be slow progress, but I do still love it.
Current equipment: 5Ds, 5D mark III, 50D, 24-105L, MP-E, 70-200 f/2.8L II, 100L macro, 500L IS II; 1.4xIII + 2x III extenders; 600EX-RT.
Former equipment includes: 300D; EOS-M, EF-M 18-55, Samyang 14mm f/2.8, EF 35 f/2 IS, 70-200L f/4 non-IS, 85L II, Sigma 180 macro, 200L 2.8, 400L 5.6

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Re: Deep Sky Astrophotography
« Reply #600 on: January 15, 2017, 06:32:13 PM »

Click

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Re: Deep Sky Astrophotography
« Reply #601 on: January 15, 2017, 06:35:52 PM »
Nice picture. Well done, scyrene.

scyrene

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Re: Deep Sky Astrophotography
« Reply #602 on: January 18, 2017, 09:00:09 PM »
Nice picture. Well done, scyrene.

Thanks as always, Click :)
Current equipment: 5Ds, 5D mark III, 50D, 24-105L, MP-E, 70-200 f/2.8L II, 100L macro, 500L IS II; 1.4xIII + 2x III extenders; 600EX-RT.
Former equipment includes: 300D; EOS-M, EF-M 18-55, Samyang 14mm f/2.8, EF 35 f/2 IS, 70-200L f/4 non-IS, 85L II, Sigma 180 macro, 200L 2.8, 400L 5.6

telemaq76

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Re: Deep Sky Astrophotography
« Reply #603 on: January 19, 2017, 05:12:41 PM »
mosaic of 2 pictures done with 500mm

32x4 min for each in h-alpha
1dx,1ds3,700da, tamron 15-30 2.8,  24 1.4 II,sigma 50 1.4 art, 85 1.2II, 100L ,400 5.6, x2 II,x1.4 III, 70-200 2.8 is II ,canon 500 f4 is

Click

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Re: Deep Sky Astrophotography
« Reply #604 on: January 19, 2017, 06:03:19 PM »
Very nice B&W picture, telemaq76.

rpt

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Re: Deep Sky Astrophotography
« Reply #605 on: January 19, 2017, 07:48:19 PM »
Nice picture. Well done, scyrene.
+1

rpt

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Re: Deep Sky Astrophotography
« Reply #606 on: January 19, 2017, 07:49:19 PM »
Very nice B&W picture, telemaq76.
Nice!

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Re: Deep Sky Astrophotography
« Reply #606 on: January 19, 2017, 07:49:19 PM »

alexthegreek

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Re: Deep Sky Astrophotography
« Reply #607 on: January 25, 2017, 12:57:49 PM »
Hi fellas!Of these 2 light pollution maps, which one do you think is more reliable?http://darksitefinder.com/maps/world.html or https://www.lightpollutionmap.info ?

jrista

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Re: Deep Sky Astrophotography
« Reply #608 on: January 27, 2017, 01:48:06 AM »
Hi fellas!Of these 2 light pollution maps, which one do you think is more reliable?http://darksitefinder.com/maps/world.html or https://www.lightpollutionmap.info ?

The former is a Bortle Scale map. The bortle scale is a simple way to gauge site darkness based on visual cues. Great for visual, but if you aim for a Bortle blue or darker you could be driving for hours before you get to the dark site, and for imaging you don't necessarily need to go that far.

The latter is a map based on actual satellite measurements of light emissions from the ground. It is VASTLY more accurate than the Bortle scale, and while it may not help you find the best visual observing dark sites, anything on the latter map that is cyan or darker is usually EXCELLENT for imaging. Green is good for imaging. Anything yellow through red is poor for imaging.

alexthegreek

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Re: Deep Sky Astrophotography
« Reply #609 on: January 27, 2017, 07:23:13 AM »

[/quote]

The former is a Bortle Scale map. The bortle scale is a simple way to gauge site darkness based on visual cues. Great for visual, but if you aim for a Bortle blue or darker you could be driving for hours before you get to the dark site, and for imaging you don't necessarily need to go that far.

The latter is a map based on actual satellite measurements of light emissions from the ground. It is VASTLY more accurate than the Bortle scale, and while it may not help you find the best visual observing dark sites, anything on the latter map that is cyan or darker is usually EXCELLENT for imaging. Green is good for imaging. Anything yellow through red is poor for imaging.
[/quote]

Thanks for the reply jrista!It just seemed very optimistic (looking at the latter map) that I live in a red area and a cyan or even better area is just 20-30 min drive!

telemaq76

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Re: Deep Sky Astrophotography
« Reply #610 on: February 21, 2017, 10:07:33 AM »
a try on ic443, not an easy target



63*3 minutes +23 darks, + flats and offsets
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Click

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Re: Deep Sky Astrophotography
« Reply #611 on: February 21, 2017, 10:20:36 AM »
Very nice B&W. Well done, telemaq76.



chrysoberyl

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Re: Deep Sky Astrophotography
« Reply #612 on: February 21, 2017, 10:48:18 AM »
a try on ic443, not an easy target

63*3 minutes +23 darks, + flats and offsets
canon 700da+500f4 is+neq6pro

Nice clouds!  Thanks for your inspiring posts.
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Re: Deep Sky Astrophotography
« Reply #612 on: February 21, 2017, 10:48:18 AM »

JOSH1992

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Re: Deep Sky Astrophotography
« Reply #613 on: February 23, 2017, 04:59:00 AM »
Mesmerizing photos !! Loving them

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Re: Deep Sky Astrophotography
« Reply #613 on: February 23, 2017, 04:59:00 AM »