Yellow tinge

[Dianepsmith]

I need some help and hope I can fine it here. I am shooting with a A7r and when I shoot in aperture priority my photos have a yellow cast. If I switch to any other mode the color is good. The white balance is set at auto. This problem has just started. Suggests on how to fix this would be most appreciated.

Thank you.

[Username]

Not toadlly insane guess, given that you

have provided precious little information:    

   

Could you be letting A-mode select slow

speeds that mix in a lotta warm ambient ?  

    

  

Run this test:  

Get a good shot in M-mode. Force A-mode 

to mimic the exact settings that succeeded 

in M-mode [shutter, f/stop/ISO]. See if you 

still get the yellow cast. 

[Dianepsmith]

I will do what you suggested in the morning and see what happens and report back. Thanks

[Dianepsmith]

I took your suggestion shot in both modes using ABW in auto and found I get the yellow cast in both. How do I fix that without having to keep physically changing the ABW each time. This is a new phenomenon with the camera it has just started after several years of use.

Help would be appreciated. Thank you.

[Username]

There's a master/global setting for color. 

IIRC it's in the Set Up menu. It's a chart 

with x-y axes for green-magenta balance 

and blue-amber balance. You can set a 

master/global color bias for the camera

anywhere within the range of the chart. 

  

It's not rare to need this adjustment, but  

it IS odd for it to suddenly change on its

own. Users sometime change things by 

accident while wizzing thru menus. Just 

go to the color tuning chart and see if it 

can get your color where you want it but

don't wonder how the shift occurred.  

   

---------------------------------------------------  

   

When you get the color fixed up, write 

down the distances for both axes. If you 

get another color shift, expect to find the 

distances have somehow changed, and 

re-enter the numbers you wrote down. If 

you ever get a visible shift but find that 

the chart settings have NOT changed, it 

means the camera needs repair, or at 

least a firmware re-installation.