@nando161
@pluralistic

Glorious. I'd love to know how they did it.

@tarheel @nando161 @pluralistic It's just a frame from a video recording. That's how most people catch lightning strikes.

@themaritimegirl

Man, there go my dreams of dozens of cameras in likely spots and ionization detection and....

It seems higher-res than I'm used to with frame grabs, but maybe I should get used to that now.

@nando161 @pluralistic

@tarheel @nando161 @pluralistic The magic of HD/4K/etc cameras :)
@tarheel @themaritimegirl @nando161 historically, if it was dark enough out, you’d just do a long (bulb) exposure on film and simply release once there was a strike… if it’s dark enough you’re not really building up too much of an exposure, but then a lot of light happens at once, as with using a strobe to capture motion, except with lightning (or fireworks) the light itself is what you want to capture.
@brhfl @tarheel @themaritimegirl @nando161
So like, a long exposure with an f-stop appropriate for something close to daylight?

@themaritimegirl @tarheel @nando161 @pluralistic

BTW, this image is AI generated...

This is the original, given as a model :

@mrv This is facinating; I wouldn't have known if I'd seen the AI one first that it was fake, but the real one feels so much more alive and... real than the fake one, in a way I can't account for - on the surface they both look extremely similar. Our brains pick up on so many little things without us realizing.

@themaritimegirl @tarheel @nando161 @pluralistic
There's also CHDK (for some Canon camera models) which has an auto trigger mode that can capture lightning strikes.
https://chdk.fandom.com/wiki/CHDK

"Motion detection trigger - automatically fires camera on motion detection.
Ability to capture lightning strikes.'
https://chdk.fandom.com/wiki/CHDK_1.6_User_Manual

CHDK Wiki

@dec23k @themaritimegirl @tarheel @nando161 @pluralistic I captured this with my Nikon D600 about 10 years ago. The old "continuous shooting mode, hold the shutter button down and hope" approach. I think I filled two SD cards and got ~4 usable images.
@ret @dec23k @themaritimegirl @tarheel @nando161 @pluralistic huh now im wondering if it'd be possible to do captures in like a ring buffer (like slow motion cameras) and trigger off a photodiode or something (or just the images assuming the processing wouldn't end up being too slow)

@ret @dec23k @themaritimegirl @tarheel @nando161 Canon + CHDK, or Samsung + NX-KS, or a simple external shutter with a lock switch.

Manual mode. Make the shutter time as long as possible (30s), low ISO, small aperture (clean your lens and check results for sensor dust). Underexpose (a shot without lightning should be just barely above black).

Shoot RAW if you can. Shoot in continuous shooting mode.

Result: https://photog.social/@ge0rg/110893054901928523
Video: https://photog.social/@ge0rg/112962700110665684
Details: https://photog.social/@ge0rg/112710547979801379