Originally posted by Ole There are three cases were fixed WB isn't fixed:
1 - Auto and Scene modes use AWB no matter what
2 - When using fill flash. Custom function 10 by default allows the camera to adjust WB
3 - WB tungsten light setting (not relevant in your case), custom function 11 allows the camera to adjust WB
Other than that I would expect a fixed value for temperature and tint except that the K-30 manual states that WB Daylight means approx. 5200K! Whatever that's supposed to imply.
Right, I meant to mention that I was shooting in Av mode, no flash. Normally, I would have shot manual, but I wanted to check auto metering with this lens that I had just had serviced due to
wonky exposures. I almost never use auto or scene modes.
If the camera is adjusting the fixed WB setting, the fact that most of the shots have WB set to ~4900 instead of the advertised 5200K probably has something to do with the light conditions - very bright afternoon sun on snowscapes - trees coated in ice and snow. Lots of bright white and blue. WB seemed to toggle between ~4900K and 5250 depending on the direction I was facing ( IIRC, I'll double check if it was consistent ).
Actually, I did shoot a series of shots for panorama stitching in manual mode. I know that I forced them all to have the same WB settings when I converted them, but I don't remember if there
were discrepancies in the camera settings. If the camera is tweaking the WB between shots, that could make stitching a series of camera JPGs awkward if you're thinking that the WB is constant because
you've set it to 'daylight'.
Originally posted by BrianR Cameras will do some fine tuning to the WB even in the preset modes. There's a setting on the k-5/3 cameras called "WB Adjustable Range" that lets you disable this fine tuning for the consistent results you're expecting. I don't see any such option in the k-50's manual.
I don't recall ever seeing a WB adjustable range setting in the custom menus, so that is probably not a feature of the K30.
Thanks to both of you for this information. As long as I know that the camera is doing this, and it isn't something weird in the RAW converter(s), that's fine. In some circumstances, I can see it making sense
for the camera to second guess my settings.
It's probably time for me to get a gray card anyways so I can set manual WB. Hopefully, the camera doesn't adjust it when you're on manual WB!
Cheers!