AlanW Loc: Upstate NY

I took a screen shot of this into LR and all three channels look similar so I don't think its a green channel issue. Most likely a shutter sync issue as others have said.

Alan

AlanW Loc: Upstate NY

I took a snapshot of this into LR and all three channels look similar so I don't think its a hardware issue. Most likely a shutter/flash sync issue as others have said.

Alan

Zooman 1

No flash was used.

BebuLamar

Yes I definitely didn't think it was a flash problem. But data corruption is also unlikely because the image is simply darker. If the data is corrupted then it would be a mess.

wmurnahan Loc: Bloomington IN

My first thought, being old school, was you took a fill flash shot at a shutter speed above flash.

Charles 46277 Loc: Fulton County, KY

Manglesphoto--I think you mean "too fast a shutter speed"? Thus the flash came and went before all the sensor was exposed?

My Canon can be set to ignite flash before the second shutter curtain begins its passage, or after the first curtain has passed. At fast shutter settings, the whole field is not visible at the same time--the slot of visibility moves across the image exposing part of the image at a time.

If this happened, the daylight lit the dark part, while the daylight plus flash lit the bright part.

All this depends on whether flash was used at all.

edwin010

It may be a card read problem. I experienced this and finally replaced my usb hub and it went away. I started by replacing sd cards then the usb card reader then finally the hub. I found the card reader was not a "solid" fit after years of use. gl ;]

SalvageDiver Loc: Huntington Beach CA

It would be useful to everyone trying to assist you to check the Store Original box when posting your image. This gives everyone access to your exif data, which includes your camera settings. Right now there's a lot of speculation which could be reduced if the exif data were available.

But it's not a rolling shutter problem.

(Download)

JohnSwanda Loc: San Francisco

The OP has stated no flash was used.

MrPhotog

Were you shooting bursts of several frames per second?

It looks like one frame was not fully captured before the camera went on to on the next frame If so, perhaps your problem lies in how fast the information can be written on the memory card, and can be resolved by using one rated for a faster data transfer speed.
Just a theory.

BebuLamar

What bother me about the theory of missing data either bad memory card, data transfer speed etc.. is that the image is intact and there are the same amount of data as a bright image. How can a data corruption simply change all pixels to a darker value and not distorting them out of recognition?

amfoto1 Loc: San Jose, Calif. USA

No, that does not appear to be rolling shutter.

The most typical rolling shutter effect is a distortion of moving objects.... or distortion of stationary objects if the photographer and camera are moving, such as riding on a train.

There also can be "banding" in some light sources that flicker on and off: fluorescent, LEDs, etc.

There can be situations where exposure is uneven, as in your photo. But it usually only occurs when the lighting conditions change dramatically during the exposure. For example, somewhere I saw a shot of lightning where half the image was exposed differently than the other. I don't see opportunity for that to occur in your image. The scene appears to be evenly illuminated. That effect might occur if you were using flash that wasn't properly synced. I'm not certain, but it appears you weren't using flash for that shot (with flash the closer subject would be illuminated more strongly than the more distant background).

Rolling shutter effects occur when using an electronic shutter because the data captured on the image sensor is read row by row from the top to the bottom. The data being captured at the bottom has been captured a nanosecond later than the data at the top.

A partial solution is to make the read out faster. That can be done various ways. So called "stacked" sensors are one method.

A more complete solution would be a "global" electronic shutter where all the data is read off the image sensor at the same time. Those exist, but are complex and quite pricey, making them impractical for use in consumer cameras. Eventually the tech will become available. Just don't hold your breath waiting for it.

More info about rolling shutter: https://en.wikipedia.org/wiki/Rolling_shutter

I really don't know what happened to your image. It would be very helpful if you would upload a larger version of the image and keep the EXIF data intact so we could look through it for clues.

Fotoartist Loc: Detroit, Michigan

There is no too slow of a shutter speed for flash but there is a too fast issue.

User ID

Superficially similar, but it lacks all the characteristics that would indicate flash.

User ID

That has been *plainly obvious* from the start (regardless of some clueless replies about synch).

Has the return/exchange period expired ?