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Focus Improvements for version 3.7.0. This video does not cover Donut Buster which is discussed here... ruclips.net/video/E56m9iWyOGc/видео.html 00:00 Introduction 00:24 Focus Integration with Analyze 02:26 Force Autofocus during a Sequence 03:17 Average HFR Check 07:42 AF Overscan Delay

How to improve Focus in KStars/Ekos for scopes with central obstructions such as SCTs, RCs, RASAs, Newtonians, etc. that create donut shaped stars when out of focus. 00:00 Introduction 03:38 Demo of Current Problem 05:32 Demo on Donut Buster Functionality 08:29 How to Use the New Functionality 12:55 Time Dilation Option 16:34 Outlier Rejection Aggressiveness Option 17:26 Changing the Starting P...

Options for In Sequence refocusing in KStars / Ekos. These options can be combined with Autofocus on Filter Change... ruclips.net/video/s9x3QgZczas/видео.html and Adaptive Focus... ruclips.net/video/UcarH72qUag/видео.html 00:00 Introduction 03:45 Refocus on time 07:10 Refocus on temperature change 08:10 Refocus on delta HFR 12:45 Refocus after Meridian Flip 14:20 Tip: How to easily trigger an a...

Tour of the new UI for Ekos' Focus Module. 00:00 Introduction 01:11 Options button and Parameters Popup 01:53 CFZ and Focus Advisor popups 03:35 Parameters per Optical Train

Using the "Fourier Power" focus measure to Autofocus in Ekos. The theory of this focus measure is based on this Paper by Tan & Schultz: academic.oup.com/mnras/article-abstract/511/2/2008/6515972 A preprint is available free here: arxiv.org/pdf/2201.12466.pdf 00:00 Introduction 00:16 Theory behind Fourier Power 09:45 Focusing using Fourier Power in Ekos

Using the adjusted HFR focus measure to Autofocus in Ekos. 00:00 Introduction 00:20 Theory of HFR / HFR Adj 11:19 Running HFR Adj in Ekos

Introduction to the new KStars / Ekos feature, the Aberration Inspector 00:00 Introduction and how to run Aberration Inspector. 02:45 The Aberration Inspector Window. 03:36 The focus curves. 05:50 The results table and sensor graphic. 09:08 Backfocus delta and Tilt results. 13:10 The 3D Graphic of Sensor and Petzval Surface.

KStars / Ekos focusing using FWHM as the measure of focus. 00:00 Introduction to HFR and FWHM. 05:50 Running FWHM 09:24 Display Units (pixels or arc seconds) 10:05 Comparison with PixInsight

KStars / Ekos focusing using Number of Stars as the measure of focus.

KStars / Ekos tutorial on HFR Focus Optimisation. Once you have focus running reliably, this tutorial looks at how you can optimise both Focus and SEP parameters for your setup. Its mainly about the stars. 00:00 Introduction 00:43 Setting up a new Simulator Profile 02:53 Setup Focus Frame collection and Simulator Replay 09:53 Running Autofocus on my collected data 27:00 Analysing RC data - mino...

AutoFocus versus Filter Offsets. 00:00 Introduction 00:47 AutoFocus 06:32 Filter Offsets 10:32 Setting up Filter Offsets 11:11 Build Filter Offsets Utility

What is Adaptive Focus and how to use it in Ekos. 00:00 Introduction 01:03 Purpose of Adaptive Focus 06:05 The Benefits of Adaptive Focus 10:19 Adapt Start Pos 14:43 Setting up Adaptive Focus 16:31 But I don't have a filter wheel? 25:35 Demo 30:11 Adaptive Focus and Analyze 34:20 Equipment

Introduction and general overview of Astrophotography focusing using Kstars/Ekos. 00:00 Introduction 03:54 Framing 06:28 Camera & Filter Wheel Properties 10:55 Basic Autofocus Run 18:00 Settings Parameters 20:20 Full Field vs Sub Frame 26:20 Process Parameters 36:43 Mechanics Parameters 39:44 Critical Focus Zone 50:30 Focus Advisor