Hiker lightning injury

[ggunn]

I meant to say the right side of the bolt is too straight. It's actually 'pixel perfect'.

It's not the bolt but the flash; the shutter probably opens from left to right and if you knew the shutter speed you could maybe estimate the duration of the flash.

 

[K8MHZ]

It's not the bolt but the flash; the shutter probably opens from left to right and if you knew the shutter speed you could maybe estimate the duration of the flash.

Shutter??

[FONT=q_serif]"Image sensors on mobile phone cameras are always exposed (albeit with a lens and other paraphernalia in front of it), and 'shutter speeds' are merely time intervals for how long the photosensors remain active to accumulate light.[/FONT]
[FONT=q_serif]Most sensors also have fixed apertures. No moving parts there either."


[/FONT]

 

[K8MHZ]

Another thing, why can't we see a shadow pattern in the background that would indicate a huge arc? Instead, we see shadows from sunlight, which would be filled in by the light from the bolt of lightning. Photographers do it all the time with flash, which never is as bright as a bolt of lightning.

 

[ggunn]

Shutter??

[FONT=q_serif]"Image sensors on mobile phone cameras are always exposed (albeit with a lens and other paraphernalia in front of it), and 'shutter speeds' are merely time intervals for how long the photosensors remain active to accumulate light.[/FONT]
[FONT=q_serif]Most sensors also have fixed apertures. No moving parts there either."


[/FONT]

I didn't notice that it was from a cell phone; with a mechanical SLR you might see something like this. Unless the sensors are scanned serially, I don't see how that photo is legit. The edges of the burned out area are too sharp and vertical. Maybe it is some sort of raster effect.

 

[RumRunner]

I don't think that is a picture of a bolt of lightning. A friend of mine managed to get a picture of one three feet in front of him and the entire frame was orange and overexposed. The left side of the bolt looks way too straight, also, the shadows in the background are not indicative of a bright arc illuminating them from that position.

This looks like a column of orange juice as seen through a transparent straw with some pulp being sucked out. Isn't lightning bolt (always) depicted like a sawtooth, zigzag image similar to Bob's logo on the side of his service truck?

Just a display of the wonders of "cut and paste". I think.

 

[Jraef]

It's not the bolt but the flash; the shutter probably opens from left to right and if you knew the shutter speed you could maybe estimate the duration of the flash.

Shutter??

[FONT=q_serif]"Image sensors on mobile phone cameras are always exposed (albeit with a lens and other paraphernalia in front of it), and 'shutter speeds' are merely time intervals for how long the photosensors remain active to accumulate light.[/FONT]
[FONT=q_serif]Most sensors also have fixed apertures. No moving parts there either."


[/FONT]

The CMOS sensors used in cell phone cameras have a "rolling shutter" effect that is only noticeable in very high speed situations (like a lightning strike I guess), because the pixels are scanned in serially, left to right. You would not see it with a CCD device, like in a digital camera, but CCDs are too large and consume too much power to be useful on cell phones now.