Colour cast ?

[macabee]

I was shooting at a farmers market, one of my images had this colour cast, yet images either side of this were normal.
Any ideas as to what occurred ZK2B0292.jpg

[El Sid]

My first guess would be a read failure from the sensor or a write failure to the card. I've never seen a colour cast like this but I have occasionally had files not write properly to card leading to bits missing or image distortion or even a completely blank file - and not necessarily to the same card either.

If it becomes a frequent occurrence my inclination would be to buy a new card first and see how that goes.

[macabee]

My first guess would be a read failure from the sensor or a write failure to the card. I've never seen a colour cast like this but I have occasionally had files not write properly to card leading to bits missing or image distortion or even a completely blank file - and not necessarily to the same card either.

If it becomes a frequent occurrence my inclination would be to buy a new card first and see how that goes.

As I 'write' to both cards, I checked them both for the colour cast and it appeared on both

[El Sid]

As I 'write' to both cards, I checked them both for the colour cast and it appeared on both

Curious... That would suggest some sort of read or process failure in camera. Could be that the electronics have glitched and misread the sensor output or there was a hiccup in the white balance system. Let's hope this is going to be one of those oddities that happens once and is never seen again.

I assume you are writing raw to one card and JPEG to the other? What software are you using to read the raw file? DPP I think tends to convert the raw data exactly the same as the camera settings while third party software applies it's own settings. Have you tried on different raw converters (assuming you have more than one)? Can the balance be corrected at all from the raw file?

[macabee]

I write RAW to both, for post editing I use either Luminar Ai or Luminar Neo, I have tried DPP4 but find it a bit tortuous for me

[@imagesBV]

Does the colour cast appear when viewed on the camera LCD?

Looks to me that you only have magenta data here and luminance...hence a monochromatic magenta image....with no green of cyan....seems those pixels decided to take a break from working n that image only.

[macabee]

It did, whilst it did not happen on the day, I cannot trust the camera

[El Sid]

It did, whilst it did not happen on the day, I cannot trust the camera

Understandable... I suggest taking it out for a non-critical shoot and see if it does it again. Hopefully it's a one off glitch rather than a sign of something more serious.

Did you try opening it in DPP?

[Trev B]

This happened to me last year, image the same on both cards - Raw & JPEG. It was a one off had no problems since

[macabee]

Understandable... I suggest taking it out for a non-critical shoot and see if it does it again. Hopefully it's a one off glitch rather than a sign of something more serious.

Did you try opening it in DPP?

That is what I intend to do

[SpringfieldPhoto]

I have seen this a couple of times on various of my my cameras. It has always been a one off. The sensor data should have three channels Green, Red and Blue. Clearly the green has failed. This is probably a one off glitch and as the overall luminance appears OK the fault would appear to be in the data conversion by the processor as it has processed green channel incorrectly. The fact that there is white showing suggests a processing fault NOT a sensor fault.

[macabee]

I have seen this a couple of times on various of my my cameras. It has always been a one off. The sensor data should have three channels Green, Red and Blue. Clearly the green has failed. This is probably a one off glitch and as the overall luminance appears OK the fault would appear to be in the data conversion by the processor as it has processed green channel incorrectly. The fact that there is white showing suggests a processing fault NOT a sensor fault.

Many thanks. It has not happened since, I'm very pleased to say.

Cheers