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From Noised-Out to WOW: Our DWARF SIRIL Guide Updated for SIRIL 1.4 Beta 4

Stacking your way to stunning deep-sky images: Our popular SIRIL guide is now updated for the latest beta, featuring a new multi-night stacking workflow.

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Duncan Pond
Oct 04, 2025
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Following our guide, go from a dim & green noisy stack to a bright and colour-enhanced stack with colour nuances

SIRIL 1.4’s Latest Beta is Here & Our SIRIL Stacking Guide is Updated! + New Pro TIP…

Hello Astro-nuts and DWARF-wranglers!

For those who have been following the development of SIRIL 1.4, we’ve got great news. The team has just released its latest beta (Beta 4), polishing up on their major new features.

Download SIRIL

While the prominent, game-changing features have been available in earlier betas, this update focuses on stability, bug fixes, and polish. It leverages the powerful new tools and makes them more reliable than ever, making now the perfect time to adopt the new workflow. We’ve updated our Ultimate Guide to SIRIL to reflect the latest and most stable version.

The Main Event: SPCC is Now Rock-Solid

The star of the entire 1.4 release cycle has been the incredible Spectral Photometric Colour Calibration (SPCC) tool. It has revolutionized colour calibration, but being beta software, it had some quirks. This latest update solidifies its performance. For DWARF scope users who struggled with the old colour calibration tools, this is the moment you’ve been waiting for: a professional-grade feature that delivers accurate, scientific colour balance and is now stable enough for your daily processing.

What’s Under the Hood? A More Robust SIRIL

This update isn’t about adding new features, but about perfecting the ones we have. The SIRIL team has implemented major fixes that make the whole program more robust. According to their official release notes, Beta 4 specifically targets:

  • Major Fixes to Core Algorithms: They’ve made critical corrections to the Drizzle algorithm. In fact, their work was so thorough that they even discovered and corrected an error in the original code used by the Hubble and James Webb Space Telescopes!

  • Improved Stability & User Experience: Numerous fixes have been implemented to prevent crashes and enhance the software’s handling of image data from our specific sensors.

This latest beta makes the powerful 1.4 features more stable and reliable than ever. To help our community master the powerful techniques in this newly stabilized version, we’ve added a new multi-night stacking workflow to our guide. Below, you’ll find a preview of this new section—an exclusive resource for our supporting CREW members.


Become a DwarfVision CREW Member to Unlock the Rest of This Guide!

By upgrading to a paid subscription, you get access to our exclusive deep-dive tutorials, downloadable datasets from our DSO Data Club, and you directly support the DwarfVision project.

With SIRIL’s Photometric Colour Calibration, the true colour of M33’s red nebulae & bright blue star clusters shine through in this zoom in on Triangulum’s famed grand design spiral.

NEW IN THE GUIDE: Mastering Multi-Night Stacking in SIRIL

The single most effective way to improve your images is to combine data from multiple nights. More integration time means less noise and more of that faint, beautiful detail we’re all chasing.

Here is the official workflow, now included in our Ultimate Guide, for combining your sessions into a single master image.

A PREVIEW FROM THE FULL GUIDE: The Multi-Night Stacking Workflow

Our updated guide provides the definitive workflow for this powerful technique. We show you why it’s crucial to calibrate each night’s data separately using its own unique darks, flats, and biases before combining them.

The guide then walks you through the precise method for consolidating all your clean, calibrated images into a single master project. Finally, you’ll learn how to perform the final stack, combining hours of data into one incredibly deep and detailed master file that’s ready for processing.

For complete, step-by-step instructions with folder structures and screenshots that make it easy, be sure to download the comprehensive guide below the paywall.


A Note for Our Valued CREW Members...

A huge thank you for being a core part of the DwarfVision CREW! Your subscription is the fuel that powers this entire project, and we genuinely couldn’t do this without you. By becoming a paying subscriber, you’ve unlocked the very best of what DwarfVision has to offer and are directly helping our community grow.

Your support gives you full access to:

  • The Complete Guide Library: Unrestricted access to this and all future in-depth guides. These are living documents, constantly updated with the latest techniques.

  • The DSO Data Club: Exclusive access to downloadable, high-quality raw datasets from our own imaging sessions. Perfect for practicing your processing skills.

  • Exclusive Content: Deep-dive tutorials, advanced processing workflows, and behind-the-scenes content that we don’t share anywhere else.

  • Directly Supporting the Mission: You are helping us dedicate more time to creating valuable resources, running community imaging challenges, and building the ultimate hub for DWARF scope astrophotography.

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