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Mark Johnston
I have been fascinated by the night sky since I ‘discovered’ Saturn with my 60mm refractor at the age of 10. An APOD-winning astrophotographer, I have been published in Sky & Telescope, Astronomy Magazine, and Space.com. As a NASA Solar System Ambassador, I have conducted thousands of public outreach programs and am a registered cruise ship speaker on astronomy and space science, as well as a Director of the Phoenix Astronomical Society. I frequently post astrophotography images, news, and tutorials on social media. My solar imaging and videos are particularly popular, and I have conducted extensive research on solar cameras and solar image processing techniques.
  • Astrophotographer
  • Tutor
Nik Szymanek
UK-based Astro-imager and deep sky image processing tutor
  • Astrophotographer
  • Tutor
Peter Jenkins
Amateur Astrophotographer & Fellow of the Royal Astronomical Society specialising in Nebulae mostly presented using the Hubble Palette
  • Astrophotographer
  • Tutor
Damian Peach
A multi-award winning astrophotographer with over 25yrs experience.
  • Astrophotographer
  • Tutor
Alexander Curry
European based amateur astrophotographer, Co-Founder of Telescope Live and Fellow of the Royal Astronomical Society
  • Astrophotographer
  • Editor
  • Tutor
Telescope Live
This is the official profile of Telescope Live
  • Editor
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Affinity Photo
Serif, developers of the award-winning Affinity Photo
  • Tutor
Adam Block
FastTrack your understanding of the HOW and WHY of astronomical image processing with renowned Adam Block.
  • Astrophotographer
  • Tutor
Ryan Voykin
US Based Amateur Astrophotographer and Creator of the YouTube Channel DarkRangersInc.
  • Astrophotographer
  • Tutor
Mustafa Aydın
An astrophotographer with 8+ years of experience and an almost lifelong background in general photography.
  • Astrophotographer
  • Tutor
Jarmo Ruuth
Amateur astrophotographer, author of AutoIntegrate and Astro Mosaic.
  • Astrophotographer
  • Tutor
Bernard Miller
A US-based, multi-APOD astrophotographer with over twelve years of experience in deep sky imaging
  • Astrophotographer
  • Tutor
Stellar Xperiences
Three astrophotographers with 30 years’ combined experience in photography and 20 years’ experience in astronomy.
  • Editor
  • Tutor
Masters of PixInsight
Join MoP's team for streamlined PixInsight expertise, ensuring clarity and simplicity.
  • Tutor
Warren Keller
A US-based, multi-APOD imager and author with over twenty years' experience.
  • Astrophotographer
  • Tutor
James Ritson
UK-based photographer and image retoucher working with Affinity Photo
  • Astrophotographer
  • Tutor

All Tutorials

AC Deconvolution
[ Standard ]

Mastering Deconvolution in SIRIL: Advanced Image Sharpening Techniques

In this SIRIL post-processing tutorial by Alexander Curry he will discuss using deconvolution, he will delve into the advanced topic of image sharpening. In Part 1, Alex introduces the concept of deconvolution, explaining its purpose in correcting and sharpening distorted star images caused by atmospheric and optical effects. He will demonstrate how to generate a Point Spread Function image (PSF) using SIRIL's tools to characterize the stars in an image, emphasizing the importance of adjusting parameters like radius, threshold, and roundness to refine star detection. In Part 2, Alex focuses on the non-blind deconvolution process. He will explain the significance of various parameters such as the regularization parameter, stopping criterion, iterations, and algorithm selection. He will highlight the iterative nature of deconvolution, recommending adjustments to achieve optimal sharpness without introducing artifacts. Alex will conclude by emphasizing the importance of high frame counts and proper parameter tuning to achieve better deconvolution results, ultimately leading to sharper and more detailed images.
BM Narrowband Enhancement
[ Premium ]

Photoshop Narrowband Color Enhancement

In this Photoshop tutorial, Telescope Live Tutor Bernard Miller demonstrates techniques to enhance color in narrowband astrophotography images, specifically focusing on both object and star colors. Using an image of the Elephant Trunk Nebula, Bernard will explain the SHO palette (Sulfur mapped to red, Hydrogen to green, and Oxygen to blue) and addresses the common issue of green tints and unnatural magenta stars. Bernard will show you a process involving selective color adjustments to reduce green and enhance overall color balance. He will further explain using RC Astro’s Star Exterminator to remove stars, improving image editing without star interference. Lastly, he will show you how to restore and enhance star colors, making them more natural without the need for RGB data.
JR Rosette Nebula
[ Premium ]

Mastering Monochrome Post-Processing in Affinity Photo V2

In this tutorial, James Ritson offers a comprehensive guide to monochrome astrophotography using Affinity Photo V2. James will show you how to stack narrowband data, focusing on H-alpha, sulfur-2, and oxygen-3 images, with adaptability for broadband RGB mono data. He begins by demonstrating how to add light and calibration frames and utilize the File Groups feature for organized processing. James teaches you how to blend and color map data using the classic Hubble Palette and balance the intensity of emission layers with the Linear Fit tool. Additionally, he provides techniques for enhancing images with selective color adjustments, noise reduction, and a final crop for composition.