What??????
Mar 11, 2020 16:50:59 #
shutterhawk
Loc: Cape Cod
I shot a series of 15 frames of this Peregrine Falcon This is the only one with this weird aberration. This shot is severely cropped. Whatever this is only effects the head of the bird. Has anyone else seen this? Can you enlighten me as to what went on here?
Mar 11, 2020 16:53:31 #
Mar 11, 2020 17:54:01 #
Genetic mutation.
Interesting....
Still would be nice to have EXIF of the image.
What camera, settings.....
Off the top of my head, was it a mirrorless camera using electric shutter?
Using the “Store Original” option when attaching the image does that unless it’s been stripped.
Interesting....
Still would be nice to have EXIF of the image.
What camera, settings.....
Off the top of my head, was it a mirrorless camera using electric shutter?
Using the “Store Original” option when attaching the image does that unless it’s been stripped.
Mar 11, 2020 18:45:12 #
That's odd. If the falcon moved its head during the exposure there would be motion blur, not double images.
Can you post the image again and check the "Store Original" box? The metadata has been stripped out of the current image.
Can you post the image again and check the "Store Original" box? The metadata has been stripped out of the current image.
Mar 11, 2020 20:48:03 #
Mar 12, 2020 05:59:01 #
Firmware bug.
You were on continuos drive, and the camera was still writing to the buffer when it mistakenly allowed to take another shot... then because there was no provision against it, it wrote the new frame grabber instead of the old one, on the middle of the process.
It happened to me many times while debugging industrial camera software. The results are pretty similar.
Check if there are firmware updates available.
What make and model is the camera?
You were on continuos drive, and the camera was still writing to the buffer when it mistakenly allowed to take another shot... then because there was no provision against it, it wrote the new frame grabber instead of the old one, on the middle of the process.
It happened to me many times while debugging industrial camera software. The results are pretty similar.
Check if there are firmware updates available.
What make and model is the camera?
Mar 12, 2020 05:59:03 #
Firmware bug.
You were on continuos drive, and the camera was still writing to the buffer when it mistakenly allowed to take another shot... then because there is no provision against that, it overwrote the frame grabber with the new exposure, in the middle of the process.
It happened to me many times while debugging industrial camera software. The results are pretty similar to yours.
Check if there are firmware updates available.
What make and model is the camera?
You were on continuos drive, and the camera was still writing to the buffer when it mistakenly allowed to take another shot... then because there is no provision against that, it overwrote the frame grabber with the new exposure, in the middle of the process.
It happened to me many times while debugging industrial camera software. The results are pretty similar to yours.
Check if there are firmware updates available.
What make and model is the camera?
Mar 12, 2020 06:26:22 #
billnikon
Loc: Pennsylvania/Ohio/Florida/Maui/Oregon/Vermont
shutterhawk wrote:
I shot a series of 15 frames of this Peregrine Falcon This is the only one with this weird aberration. This shot is severely cropped. Whatever this is only effects the head of the bird. Has anyone else seen this? Can you enlighten me as to what went on here?
How many frames per second were you shooting at. It could be that the camera put two images together if your were shooting at a high FPS.
Mar 12, 2020 07:31:24 #
shutterhawk
Loc: Cape Cod
Thanks everyone. I think you've nailed it. This was shot with a Nikon D500, 1/2000 of a second @ 5 fps. I do remember having an unresponsive shutter for a second which used to happen with my old D300 but seemed odd with the D500 which is supposed to have a 40 something frame (RAW) buffer. I just wrote it off as a weird glitch. I'm off to work but will be running a firmware update.
Mar 12, 2020 19:05:08 #
I had something similar happen decades ago on a wedding family group shot (Film days).
I've done 2000 weddings and it only happened once.
NEVER did figure out what caused it.
I've done 2000 weddings and it only happened once.
NEVER did figure out what caused it.
Mar 12, 2020 19:37:53 #
CO wrote:
That's odd. If the falcon moved its head during the exposure there would be motion blur, not double images...
Not necessarily.
You’re using a focal plane shutter and they are known to produce distortions when shooting moving subjects.
1/2000 second is about 1/10 of the time the shutter takes to move across the frame. If the image moves in the direction of the shutter travel the resulting image is stretched. If the other way, it’s compressed. If the image moves perpendicular to the shutter travel it will be sheared.
The double image is more likely to be a glitch in the data transfer.
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