Callum Potter
@callump.bsky.social
Observer of the skies, and lover of all things sciencey.
My first 'proper' job was at Harwell - Instruments and Applied Physics, B148, B347 (.3 maybe...)
January 2, 2026 at 12:48 PM
My first 'proper' job was at Harwell - Instruments and Applied Physics, B148, B347 (.3 maybe...)
What settings do you use?
On my A7S I use 1/25s, f/2.8 21mm lens, ISO 128,000 but 'amp glow' is annoying, but I read that the A7S II amp glow is no better at high iso?
On my A7S I use 1/25s, f/2.8 21mm lens, ISO 128,000 but 'amp glow' is annoying, but I read that the A7S II amp glow is no better at high iso?
December 23, 2025 at 2:12 PM
What settings do you use?
On my A7S I use 1/25s, f/2.8 21mm lens, ISO 128,000 but 'amp glow' is annoying, but I read that the A7S II amp glow is no better at high iso?
On my A7S I use 1/25s, f/2.8 21mm lens, ISO 128,000 but 'amp glow' is annoying, but I read that the A7S II amp glow is no better at high iso?
Did everyone watch it last night?
December 21, 2025 at 1:31 PM
Did everyone watch it last night?
I’ve switched it off - I expect the draw groups will be online somewhere later
December 5, 2025 at 6:20 PM
I’ve switched it off - I expect the draw groups will be online somewhere later
Link to the paper?
November 12, 2025 at 2:45 PM
Link to the paper?
1976 I saw Rick and the English Rock Ensemble at the Usher Hall in Edinburgh- a great night
October 30, 2025 at 8:58 PM
1976 I saw Rick and the English Rock Ensemble at the Usher Hall in Edinburgh- a great night