Are there adapters to allow Sony FE lens to be used on Sony A99 camera?
Admin
Short answer: No — there are no practical adapters to use Sony FE (E-mount) lenses on a Sony A99 (A-mount body). Here’s why: 🔴 Fundamental issue: mount geometry The key…
May 2026
How does Sony LA-EA3 lens mount adapter compare to LA-EA4 and LA-EA5?
The three adapters you mention—LA-EA3, LA-EA4, and LA-EA5—all let you mount older Sony/Minolta A-mount lenses on newer E-mount mirrorless bodies, but they differ quite a lot in how autofocus is…
Current brightness of supernova in NGC5907
The following is the result of a ChatGPT AI search, the accuracy of which I cannot verify: The current supernova in NGC 5907 is SN 2026kid (Type II), discovered in…
Chett Mitchel Handouts for GNU Radio Meeting 11/5/2026
Click on link to download the files for this meeting: https://www.astronomy.me.uk/wp-content/uploads/2026/05/Chett_Mitchel_Handouts_GNU_Radio_Meeting_110526.zip
96KHz external soundcard recommended by Douglas Decker for use with SuperSID
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