image rotation

[chauncey]

To date this has only happened once...1 CF card used on a shoot of 154 images recorded>standard import into LR5.
Now the rub...the first 17 images were imported rotated 90 degrees CCW with the remainder being normal. As said, this is a one time occurrence...What might have happened?

[Stagecoach]

William, does the same problem occur if you import or copy them from the card into something else?

I'm thinking elimination.

[deetheturk]

William,just a thought,might you have taken 17 images in portrait format???

[chauncey]

Have since reused the card without problems...did not shoot in portrait mode.

[Mike Buckley]

The gremlins were having a field day with you. What else do you need to know?

[Glenn NK]

Both my old and new bodies have the option to auto-rotate images in one of the settings (Auto Rotate ON/OFF)

AFAIK, this is where it happens (in the camera).

G

[chauncey]

This was a scenario that I was stacking images and using a remote shutter...camera wasn't touched except for focus and perspective changes.

[Glenn NK]

This was a scenario that I was stacking images and using a remote shutter...camera wasn't touched except for focus and perspective changes.

Well that seems to rule out a setting change - but I can't see it being a card issue - unless the camera didn't correctly write everything correctly to the file on the card.

Sure seems odd, and I've never heard it mentioned on any of several forums in eight years.

The one thing I ALWAYS do is format my cards in the camera, and I usually do it twice (or should that be "three times lucky" as our British friends say?)

[chauncey]

I'm thinking that Mike's answer makes the most sense.

[Paniaa]

'Fraid I was thinking gremlins too

[Manfred M]

This was certainly not a card issue.

Your camera will write orientation data to the metadata when you take a picture. Orientation is meausred through in-body accelerometers (a.k.a. electronic gyroscope functionality), and if somehow the orientation measurement is incorrect, this will result in the incorrect orientation data being written to the metadata. Your editing software uses this data to determine how the image will be displayed, so if the data is wrong, the software will cause this issue that you are seeing.

The cause; the orientation algorithm in your camera is misinterpreting the data the accelerometers supply to it (nicely said, a software bug). Gremlins are the layman's term for this...