Homogenize similar shots

[Rikybrain]

Hi All,

I shoot a sequence of pictures of the same subject on a white background.

Background's luminance and color temperature looks slightly different among different shots.

Is there a way to make those values fot the background exactly the same in all my shots sequence? (ie does exist a kind of eyedropper to copy a value - tint, luinance, temperature,... - accross different files?).

Many thanks for your help!

[KR Seals]

Are you using auto white balance in the camera? If so, go to a fixed or custom value.

Studio strobe lighting or something else?

[Rikybrain]

Thanks KR.

Yes, I use autobalance on my camera, but light condition changed over time and subject characteristics caised som change in backgroud light...

[KR Seals]

If you don't have betters control of the shooting conditions, then Conrad C's advice should work for you. A setup where you have constant light quality and fixed/custom white balance will make your results much more consistent with far less processing work.

[Conrad_C]

There’s more than one way to do this. When you select multiple images, you can click the Sync Settings button in the Library module, or the Sync button in the Develop module. Those buttons let you choose which settings to copy from the “most selected” image (the one with the lightest highlight). When you click Synchronize, the settings you selected are applied to all selected images.

Another method is that instead of syncing, you can copy settings from one image and paste to any number of other images. In Develop, you can select one image and choose Settings > Copy Settings, select the settings to copy and click Copy, select one or more other images, and choose Settings > Paste Settings. In Library, the same commands are on the Photo > Develop Settings submenu.

If the goal is to make inconsistently exposed images look like they have the same exposure, in the Develop module you can try Settings > Match Total Exposures. This typically does not apply the same settings to all selected images, because the goal is to give them whatever different adjustments they need to try and make all their exposures appear uniform.

[D Fosse]

If white balance is "as shot" in the reference image, "as shot" is what gets synchronized, so you're back to square one. So I made a habit of changing that to "custom" before synchronizing. Then you get the actual temp and tint numbers.

At least it used to be like that, haven't rechecked this lately.

[Rikybrain]

Thank you; will keep in mind your additional advice and will apply your hints.

[Rikybrain]

Many thanks, Conrad. Will try as you suggest.