Astrophotography Macros v15 update (it's a big one!)

Опубликовано: 08 Август 2026
на канале: James Ritson
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I'm really excited about this update—as always, it's a free download from my website https://jamesritson.co.uk/resources

V15 of my astrophotography macros for Affinity Photo is here! Over 100 macro functions for astrophotography workflows including star size reduction, various tone stretching methods (logarithmic, colour preserving), multi-bandpass sharpening (absolute point of focus), diffuse glow, mono data colour mapping and more.

Thanks to Telescope Live for some of the data used in this video.

Here's the full list of available functions:

Initial Tone Stretching and Data Enhancement

Normalised Tone Stretch
Logarithmic Tone Stretch
Colour Preserving Tone Stretch
Colour Preserving Tone Stretch (+)
Post Tone-Stretch Log Transform
Mono Stretch (RGB)
Mono Stretch (L-RGB)
Mono Stretch (SHO)
Mono Log Stretch (RGB)
Mono Log Stretch (L-RGB)
Mono Log Stretch (SHO)
Stretch Selected Layer
Log Stretch Selected Layer
Enhance R (Mono) Layer
Enhance G (Mono) Layer
Enhance B (Mono) Layer
Enhance SII (Mono) Layer
Enhance Ha (Mono) Layer
Enhance OIII (Mono) Layer
Boost R Layer
Boost SII Layer
Boost Ha Layer
Boost OIII Layer


Further Tone Stretching & Tone Manipulation

Darken Mono Stretched Result
Highlight Recovery
Masked Gamma Stretch
Masked Curves Stretch
Masked Contrast Boost
Highlight Preserving Tone Boost
Highlight Preserving Brightness Boost
Highlight Protected Tone Lift
Nonlinear Tone Boost
Edge Masked Contrast
Reduce Mid-Tone Contrast
Shadow Stretch
Weighted Luminosity Enhancement
Weighted Intensity Mixer
Weighted RGB Tonal Boost
RGB Live Luminosity
Min-Max Live Luminosity
Extract Inferred Ha Luminance


Star Detail Retouching

Star Size Reducer
Reduce Star Luminosity
Reduce Star Intensity


Background Detail Retouching

Remove Background Luminosity
Live Background Subtraction


Structure Retouching

Enhance Structure
Enhance Structure (Aggressive)
Enhance Nebula Structure
Local Contrast Structure
Hue Masked Structure
Enhance Depth & Contrast
Soften Structure
Soft Rendering


Effects

Diffuse Glow
Highlight Brilliance


Corrective

Average Neutralisation
Reduce Harsh Noise
Reduce Harsh Noise (+)
Reduce Salt and Pepper Noise
Remove Star Fringing
Remove Star Fringing (Selective)
Reduce Magenta Star Colour
Brighten Star Centres
Green Channel Noise Reduction
Green Channel Synthetic Substitution
SCNR Green Max/Additive
SCNR Green Neutral/Max Neutral
Nonlinear Compositing
Remove NaN Pixels


Masking

Live Star Mask
Live Background Mask
Live Channel Mask
Live RGB Weighted Mask
Weighted Saturation Mask
Use Layer as Mask


Colour Manipulation

Deepen Colour Detail
Enhance DSO Luminosity
Luminosity Masked Saturation
Golden Boost
SII Ha Tone Enhancement
OIII Ha Tone Enhancement
Enhance Red Signal
Enhance Green Signal
Enhance Blue Signal
Enhance Cyan Signal
Enhance Magenta Signal
Enhance Yellow Signal
Boost Red/Yellow Detail
Boost Blue/Green Detail
Channel Masked White Balance
Warm Red Tones
Cool Blue Tones
Dual Band Colour Mixer


Sharpening

Bandpass Sharpening (Micro)
Bandpass Sharpening (Fine)
Bandpass Sharpening (Regular)
Bandpass Sharpening (Wide)
Bandpass Sharpening (Repetitive)
Background Sharpening
Gaussian Kernel Sharpening
Gaussian Subtractive Sharpening
Nonlinear Sharpening