Ivar B Posted March 16, 2020 Share #1 Â Posted March 16, 2020 (edited) Advertisement (gone after registration) I really should have been able to solve this myself, but I am not yet fully satisfied with my own results. I make some ads from time to time and use a simple "table studio" with lamps with a colour temperature of 6500 K. The AWB of both Leica SL and Panasonic S1R fail to handle this. There is always a blue cast, which is easy to remove, however. I have tried entering WB manually, but I am not successful - it seems difficult to remove the blue cast. Can someone enlighten me? Â Â Edited March 16, 2020 by Ivar B Link to post Share on other sites More sharing options...
Advertisement Posted March 16, 2020 Posted March 16, 2020 Hi Ivar B, Take a look here White Balance. I'm sure you'll find what you were looking for!
evikne Posted March 16, 2020 Share #2  Posted March 16, 2020 I always use a WhiBal white balance card or an ExpoDisc when a correct white balance is desirable. Link to post Share on other sites More sharing options...
jaapv Posted March 16, 2020 Share #3 Â Posted March 16, 2020 19 minutes ago, Ivar B said: I really should have been able to solve this myself, but I am not yet fully satisfied with my own results. I make some ads from time to time and use a simple "table studio" with lamps with a colour temperature of 6500 K. The AWB of both Leica SL and Panasonic S1R fail to handle this. There is always a blue cast, which is easy to remove, however. I have tried entering WB manually, but I am not successful - it seems difficult to remove the blue cast. Can someone enlighten me? Â Â Use the "grey card" option of the camera. You can use any neutral surface but a traditional gray card is most precise. Be aware, however, that whitebalance is set on raw conversion and that the camera white balance is no more than a suggestion for a postprocessing setting. Link to post Share on other sites More sharing options...
pgk Posted March 16, 2020 Share #4  Posted March 16, 2020 Are your lamps CE specified to a CIE colour temperature? Even if they are there will be a tolerance of +/- usually 2~300K and they can be blue if on the high side. If they are not CIE accurate then the colour cast may be because they are not of as continuous spectrum as is desirable. This may also be why the cameras don't provide as accurate a white balance as you are anticipating. FWIW every digital camera I own seems to provide a different K value (and tint value in Photoshop) and consequently colour balances vary too. 1 1 Link to post Share on other sites More sharing options...
Jeff S Posted March 16, 2020 Share #5 Â Posted March 16, 2020 Use a ColorChecker Passport, which can also serve other needs such as custom color profiles. Â There are various easy tutorials online. Jeff 1 1 Link to post Share on other sites More sharing options...
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