Skip to Content

Video

Astrophotography Video Tutorial

|Blog Updates|2 Comments

Astrophotography Video Tutorial

Astrophotography Video Tutorial

In my first ever astrophotography video tutorial, I take a crack at the Rosette Nebula using data collected in February 2014. I have plans of shooting a video about light frame acquisition in the future, but this one is about what happens after you have already captured your data.  This astrophotography video tutorial may be useful to anyone who has questions about the stacking process, and processing the created .TIF file in Adobe Photoshop.

I must admit, I learned a lot about how I could improve upon these videos in future during the process.  Putting together an online tutorial video using a particular piece of software is harder than it looks!  Nevertheless, I believe new astro-imagers will find some useful information in my video.

My astrophotography processing techniques

In the video, I discuss the importance of organizing and inspecting your raw image files before you dive-in to Deep Sky Stacker. The application I find most useful for this stage is Adobe Bridge.  I subscribe to the Adobe Creative Suite that includes all of the Adobe applications, so using Bridge as my default image viewer was a no-brainer.  I know that Adobe Lightroom is another popular choice for this purpose as well. Alternative methods for viewing RAW image files on your PC are Faststone Image Viewer, Canon EOS Utilities and installing the proper codec on your particular version of Windows to preview the files.  I have used Faststone Image Viewer and Canon EOS Utilities, but I have not tried the Windows Codec option.


Video Summary

Using Deep Sky Stacker, I register and stack over 2 hours worth of 3.5 minute light frames I captured of the Rosette Nebula with my Canon Xsi and ED80 Telescope. As always, dark frames are subtracted from the final image to produce a final image with a higher signal-to-noise ratio.  I then locate and open the 32 bit Autosave.tif file into Adobe Photoshop CC for further processing using helpful astrophotography plugins including Gradient Xterminator and the Astronomy Tools Action Set. The order of the actions I make when processing an astrophoto from the RAW image files to the final result are as follows:

  1.  Stack and register light and dark frames in DSS
  2.  Open Autosave.tif file in Adobe Photoshop
  3.  Slight Image Crop to remove stacking artifacts
  4.  Removal of gradient and vignetting via Gradient Xterminator
  5.  Levels Adjustment
  6.  Convert to 16-bit/channel image
  7.  Curves Adjustment
  8.  Astronomy Tools Action > Local Contrast Enhancement
  9.  Astronomy Tools Action > Enhance DSO and Reduce Stars
  10.  Astronomy Tools Action > Increase Star Colour
  11.  Astronomy Tools Action > Make Stars Smaller
  12.  Balance neutral background sky colour
  13.  Increase Saturation
  14.  Final Curves Tweaks

The Learning Curve

Up until this point, I’ve been the student, not the teacher.  I want to show beginners how I process my astrophotography images, but my presentation skills leave much to be desired. I have always been an artist at heart, so my methods may seem unorganized and random to the general public.  I am more likely to “trust my eyes” rather than a set of numbers and graphs, although I recognize their value.  I feel that through the process of teaching others how to capture and edit photographs of the night sky, I will gain a deeper appreciation and knowledge of the hobby for myself.  Thank you to everyone who has subscribed to my YouTube channel so far.  I am just getting started.

 

AstroBackyard on YouTube

 

Related Tags

Astrophotography by Trevor Jones

|Blog Updates|3 Comments

What is Astrobackyard.com?

This astrophotography blog creates an outlet for me to share images, information and tips about my favourite hobby. I received lots of help when I began this hobby in 2011, and it’s my turn to pay-it-forward to the next wave of astrophotographers. I have watched the hobby grow in the short years that I have been involved. There are more options and information out there now than ever before. The one aspect that does not change is a love for the night sky. The story behind the sites name is that the backyard is where I began my journey, and where I still spend the most time under the stars. Travelling to new locations around the continent with much darker skies is great, but happens only once or twice a year at max. My backyards is my personal window to the heavens, and it’s where I connect with the universe.

 

Lagoon Nebula by Trevor Jones

The Lagoon and Cat’s Paw Nebula by Trevor Jones

Why should I come back?

If you’re anything like me, you enjoy reading about a fellow astrophotographers experiences.  You enjoy hearing stories from someone who shares the same love for astronomy that you do.  If you use similar camera and astrophotography equipment, you might even learn a thing or two from my mistakes.  Maybe you just like to sit back and enjoy the hours of hard work I have put into each and every one of my photos.  Whichever reason you choose, I sincerely appreciate your company.

What to expect

I have recently overhauled my site to it’s current design. Astrobackyard.com is now set to become an authority in the astrophotography community.  You can expect more astronomy related news and events, more astrophotography tutorials and equipment reviews, and of course, all of my astrophotography adventures from the backyard, and beyond.  I plan to share astrophotography processing techniques that have helped me pull the absolute most detail out of my images.  Later this year I will be creating a video tutorial series on youtube that should cover the basics of my current workflow.  I am not an professional photographer, image-processor or scientist, but I am dedicated to improving my skills.  I am an active member of the Royal Astronomical Society of Canada, as the current webmaster and newsletter editor for the Niagara Centre. Please follow me on Twitter for the absolute latest news.

@astrobackyard on Instagram

I post new and old astronomy photos in Instagram quite regularly.  Feel free to connect with me over there!

 

Astrobackyard on Instagram

 

Related Tags