A partial eclipse has happened August 12, 2026 visible in Germany - and on my new location in south-west Germany with around 86% visibilty I had decided last minute to try and record that. So I prepared a setup consisting of my modified Lumix GH4 plus a lens I found a while ago which surprisingly does transmit UV light: a f4/250mm catadioptric lens. A bit tricky is using a suitable UV transmitting filter with that lens, as it has to be mounted into the rear lens mount, which worked using a 25mm diameter UV filter stack (centered at 370nm) I found at a US seller years ago with rather good VIS/IR suppression.
[click on image to see a larger one]
Reflected UV (370nm):
Surroundings in reflected UV (370nm):
Trying to white balance this last image lead to some interesting, bit eery effect:
So this went rather well, even a sunspot got visible (click on the first image to see a larger one), so I was rather happy to have captured such a rare event, the last one visible here in Germany was 1999.
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos
