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mollyc

macrumors G3
Aug 18, 2016
8,065
50,756
The Orion Nebula
A departure from the norm for me, this image is the Orion Nebula, shot with a Canon 100D DSLR attached to my 8" Newtonian Reflector Telescope on a motorised tracking equatorial mount - from my back garden in SW Scotland.
209 subs @ 10s / ISO 1600 along with 30 Dark frames, 30 Flat frames and 42 Bias frames.
To the knowledgable and experienced deep space astrophotographers, there is a lot "wrong" with this image - and it would probably get critiqued to pieces - but I'm delighted with it - and that's what matters to me. I'm not an expert and saw it more as a fun experiment that has turned out to be rewarding beyond words.

View attachment 1731532
This is beautiful. I consider myself a somewhat proficient photographer and yet I have no idea what half your words mean.
 
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r.harris1

macrumors 68020
Feb 20, 2012
2,210
12,757
Denver, Colorado, USA
The Orion Nebula
A departure from the norm for me, this image is the Orion Nebula, shot with a Canon 100D DSLR attached to my 8" Newtonian Reflector Telescope on a motorised tracking equatorial mount - from my back garden in SW Scotland.
209 subs @ 10s / ISO 1600 along with 30 Dark frames, 30 Flat frames and 42 Bias frames.
To the knowledgable and experienced deep space astrophotographers, there is a lot "wrong" with this image - and it would probably get critiqued to pieces - but I'm delighted with it - and that's what matters to me. I'm not an expert and saw it more as a fun experiment that has turned out to be rewarding beyond words.

View attachment 1731532
I'm not knowledgeable or experienced in deep space astrophotography. I'm happy to be in this state of ignorance because it allows me to thoroughly enjoy your image and your work on it. Beautiful! :)
 
  • Like
Reactions: Mark0

Darmok N Jalad

macrumors 603
Sep 26, 2017
5,425
48,332
Tanagra (not really)
1613607416157.jpeg
 

Mark0

macrumors 6502a
Sep 11, 2014
516
3,399
SW Scotland
Quite a beautiful image!

Thanks!

This is beautiful. I consider myself a somewhat proficient photographer and yet I have no idea what half your words mean.

Thanks, I appreciate the kind words. Astrophotography in its true form (not the wide angle Milky Way shots I'm used to) is an incredible discipline and is also highly technical, in relation to the capturing and processing methods and the sheer amount of equipment required to do it. My "skill" (or lack of) just scratches the surface and my equipment is very rudimentary. From what I can gather from my first foray into it, there is a lot of emphasis on having the right equipment to get stars perfectly sharp, ensure the star field is flat via dedicated field flattening optics, using filters for specific wavelengths of light, getting the right "look" to the images. The important part is the mount, optics and tracking via auto guiding, to ensure the longest exposures possible. Every photon counts and the lengths some people go to, as well as the expense - are eye watering. Some of the best images I've seen come from tens of hours of calibrated images from various shooting sessions, which are then integrated and then processed. I guess it is their passion and I absolutely admire their patience and dedication. I don't have the time, nor the funds to pursue it to this level. I may look at auto guiding, but I don't know if my EQ5 mount is actually good enough, due to the beginner quality motors and the Periodic Error it has with the worm gears.

I'm not knowledgeable or experienced in deep space astrophotography. I'm happy to be in this state of ignorance because it allows me to thoroughly enjoy your image and your work on it. Beautiful! :)

Thanks, neither am I! I'm just starting, but more of a "I'll make do with what I've got and try to get something worthwhile" sort of mindset. To get really into it, costs thousands - and that's before the part where you can't buy knowledge or experience!
 

Mark0

macrumors 6502a
Sep 11, 2014
516
3,399
SW Scotland
Just realised it's a new day, so here's my latest DSO image:

The Horsehead Nebula and Flame Nebula

Probably one of my favourite parts of space, The Horsehead Nebula lies in the constellation Orion, which is quite a busy part of the sky with lots to see. I've always wanted to photograph this Nebula as I find it absolutely jaw-dropping but up until this week, I lacked the equipment. I finally got a Fuji XF100-400, so it works out as a 600mm in FF terms, therefore giving me just enough reach for a shot like this. I attached my X-T3 and the lens to my EQ5 mount and went for unguided 25s exposures. I wanted 200, but only got 70ish due to atmospheric haze and then cloud that came in. The haze has caused Alnitak, the bright star in the image to have a glow around it, as well as others. Ideally, I'd like to grab at least 1min unguided exposures and look to have the setup auto guided in future, to allow for hopefully 3-5 minute exposures, as I'll can then drop the ISO a bit for clearer results and get more signal for more detail (a lot of red nebula isn't visible in my shot - but it is there). I'll also go to my nearest Dark Sky Park that is only a short drive away, to make use of better sky quality. I'll probably reshoot this, zoomed in more on the Horsehead nebula, with the camera attached to my telescope instead.
Anyway, for this image, the shots were: 74 Light frames shot at 25s / f5.6 / ISO 1600, 30 Dark frames, 30 Flat frames, 30 Bias frames. Calibrated, integrated and processed in AstroPixelProcessor for macOS. Finished in Adobe Lightroom and Photoshop.

Horsehead Nebula & Flame Nebula small PL.png
 

shanson27

macrumors 68020
Nov 27, 2011
2,226
21,146
Just realised it's a new day, so here's my latest DSO image:

The Horsehead Nebula and Flame Nebula

Probably one of my favourite parts of space, The Horsehead Nebula lies in the constellation Orion, which is quite a busy part of the sky with lots to see. I've always wanted to photograph this Nebula as I find it absolutely jaw-dropping but up until this week, I lacked the equipment. I finally got a Fuji XF100-400, so it works out as a 600mm in FF terms, therefore giving me just enough reach for a shot like this. I attached my X-T3 and the lens to my EQ5 mount and went for unguided 25s exposures. I wanted 200, but only got 70ish due to atmospheric haze and then cloud that came in. The haze has caused Alnitak, the bright star in the image to have a glow around it, as well as others. Ideally, I'd like to grab at least 1min unguided exposures and look to have the setup auto guided in future, to allow for hopefully 3-5 minute exposures, as I'll can then drop the ISO a bit for clearer results and get more signal for more detail (a lot of red nebula isn't visible in my shot - but it is there). I'll also go to my nearest Dark Sky Park that is only a short drive away, to make use of better sky quality. I'll probably reshoot this, zoomed in more on the Horsehead nebula, with the camera attached to my telescope instead.
Anyway, for this image, the shots were: 74 Light frames shot at 25s / f5.6 / ISO 1600, 30 Dark frames, 30 Flat frames, 30 Bias frames. Calibrated, integrated and processed in AstroPixelProcessor for macOS. Finished in Adobe Lightroom and Photoshop.

View attachment 1731725
Nice, i tried yesterday ISO 6400 f3,5 with my Fuji camera ?
06B2D436-E8CC-4349-B49B-A7D1BB5516AD.jpeg
 
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