96KHz external soundcard recommended by Douglas Decker for use with SuperSID
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I have posted this recommendation from Doug. Although I have purchased one of these cards, I cannot personally vouch for how effective it is, now how it compares to other…
Painting hydrogen line radio telescopes at LRO with metal-protective paint
I used Hammerite silver paint – took 4 x 1 litre tins to cover all telescopes front and back (except back of mounted 150cm solar cooker dish which is sprayed).
What software would allow me to compare 2 x SD cards to ensure image on both is exactly the same?
There are a few solid ways to do this, depending on how “exact” you want the comparison to be (file-level vs full raw image comparison). For SD cards, you usually…
Radioactive test source experiment with CosmicWatch muon detector at LRO, showing change in rates measured as result of LRO small radioactive test source 5-6 May 2026
I have successfully replicated the experiment in the Comic Watch manual showing change in rates measured as result of radioactive test source (radioactive rock from ebay) on top of detectors…
Using radioactive test source on UKRAA Cosmicwatch muon detectors
Two detectors in coincidence mode, one on top of other. Radioactive rock test sources from ebay – large and small ones – plus I have some pieces of lead which…
Whitham D. Reeve’s slides from BAA VLF meeting April 2026
https://www.astronomy.me.uk/wp-content/uploads/2026/05/Whitham-Reeve-slides-from-BAA-VLF-meeting-April-2026Reeve_AppUKRAA_VLFRx.pdf
Optical grease specifications and suggestions for cheap option to go between SiPM and scintillator in homemade muon detection
Untested advice from ChatGPT: The following comes from ChatGPT. I am unable to verify the content from personal experience. I have entered this advice onto this blog as part of…
Review of the Thypoch Simera 35mm f/1.4 lens.
Untested advice from ChatGPT: The following comes from ChatGPT. I am unable to verify the content from personal experience. I have entered this advice onto this blog as part of…
What filters are built in on various generations of Sony A7 cameras?
Short answer: all Sony A7-series cameras have essentially the same type of built-in filter, and it hasn’t fundamentally changed across generations. What has changed is how effective and refined it…
Recommended prime lens kit for Sony Alpha A camera for wildlife photography using Minolta AF lenses
For wildlife with Minolta AF (A-mount), the key factors are reach (300–600 mm equivalent), autofocus speed, and optical quality (APO/G glass). Unlike modern systems, Minolta’s strength is in a handful…