John Evans
John Evans
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KStars Contrast Based Focus
Contrast based focus algorithms are now in beta testing in KStars. This enables focusing on non-star fields such as the Sun, Moon and planets.
If this is of interest to you and you'd like to participate in testing you'll need to be able to build KStars from source code and be able to install openCV on your system. If you'd still like to participate in beta testing please reach out to me.
Переглядів: 37

Відео

Simbad Integration with FITSViewer
Переглядів 182День тому
View Simbad objects in your images in FITSViewer. Big thank you to SetiAstro for the original idea in "What's in my Image" PixInsight script. Please see... ua-cam.com/video/YwJhgcfQUPQ/v-deo.html And check out SetiAstro's website here... www.setiastro.com 00:00 Introduction 03:29 Basic Usage 07:23 Object Types 13:30 Plate Solving 17:25 Launching Simbad browser, CDS browser and NED browser 19:58...
KStars/ Ekos Focus Advisor Release 4
Переглядів 8063 місяці тому
Release 4 of Focus Advisor for KStars / Ekos 3.7.2 00:00 Introduction 01:13 Update Parameters 04:20 Find Stars 07:32 Course Adjustment 11:33 Fine Adjustment
KStars / Ekos Focus Improvements for 3 7 0
Переглядів 6116 місяців тому
Focus Improvements for version 3.7.0. This video does not cover Donut Buster which is discussed here... ua-cam.com/video/E56m9iWyOGc/v-deo.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
Donut Buster
Переглядів 1,1 тис.8 місяців тому
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...
KStars / Ekos In Sequence Focusing
Переглядів 2449 місяців тому
Options for In Sequence refocusing in KStars / Ekos. These options can be combined with Autofocus on Filter Change... ua-cam.com/video/s9x3QgZczas/v-deo.html and Adaptive Focus... ua-cam.com/video/UcarH72qUag/v-deo.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 ad-...
KStars/ Ekos New Focus UI
Переглядів 4739 місяців тому
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
KStars/ Ekos Focusing using Fourier Power
Переглядів 19011 місяців тому
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
Kstars / Ekos Focusing using HFR Adj
Переглядів 20311 місяців тому
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
KStars / Ekos Introduction to the Aberration Inspector
Переглядів 82111 місяців тому
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
Переглядів 200Рік тому
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
Переглядів 186Рік тому
KStars / Ekos focusing using Number of Stars as the measure of focus.
KStars / Ekos HFR Focus Optimisation
Переглядів 612Рік тому
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...
Kstars / Ekos AutoFocus vs Filter Offsets
Переглядів 224Рік тому
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
Kstars/Ekos Adaptive Focus
Переглядів 395Рік тому
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
Kstars/Ekos Focus Introduction
Переглядів 2 тис.Рік тому
Kstars/Ekos Focus Introduction