Articles

Published in RASC Edmonton Centre Stardust when a date is listed

Noctilucent Clouds

The Shadowing Geometry for NLC (for JRASC)
Solar Altitude Stamp on NLC images Apr 2018

Image Processing and HDR

Thoughts on composites Nov 2015

Steroid Moons Dec 2015
Detrailing and Derotating tripod shots Dec 2020
Driveless Tracking with Sequator Dec 2020
Sun-centred Halo to Zenith Fisheye using Hugin Fall 2019
The parallactic angle, de-rotating in batch mode May 2019
Unexpected vertical stripes in time-slices and composites (Mach bands) Mar 2019
Fake an underexposure Sep 2016
Stacking on an invisible moving comet
Transforming 60Da to normal color May 2018
Panorama stitching with Hugin (basic) 2016
Using Hugin GUI to stitch 3 cameras into an overhead fisheye for aurora 2018
Stiching 3 cameras into a fisheye Aurora time-lapse with Hugin 2018
Camera settings for Moon HDR 2016
EnfuseGUI for HDR time-lapses 2016

Reflections

Eclipsed Reflection Feb 2016
Cornering a Reflection Mar 2016
Building Angle Deriving Apr 2016
Glancing Reflections May 2016
Forward-Double June 2016
A Quadruple Reflection Jun 2017
A Triple Reflection Apr 2020

This 'n That

Lens Tilt Calculator (under construction)

Why Is There Often Cloud Near The Horizon? for JRASC
Negative afterimages During Twilight for Jan 2020
Lunar South Pole for Feb 2020
A review of the iOptron cube for September 2019
My Photo-op Anniversary (Metonic Cycle) for June 2019
A 22-degree halo day for May 2019
StarAdventurer exposure and focal length limits for Apr 2019
GalileoScope grade 4-6 Sep 2017
Focus with Bahtinov mask Feb 2018
DSLRcontroller Remote Focusing Feb 2018
Total Lunar Eclipse 20180131 for Edmonton area residents