I'm having issues with Lightroom Mobile. When I shoot in ProRAW on my iPhone 12 Pro, the result is usually crisp contrast and bright whites. However, when I open that image in Lightroom Mobile (using the Apple ProRAW profile) and export it back to the iPhone's camera roll having made no changes, the image is dull and has lost its contrast. I also tried it with Apple HEIC and JPG files, and the same thing happens. It's maddening. I first discovered this when I opened a ProRAW image in Lightroom Mobile to make no changes other than to use the Healing tool to remove a mark. When I exported it back to the camera roll, the image lacked the contrast of the original. Please advise, and thank you for your time.
Thank you for the quick reply. After experimenting further with Lightroom Mobile's color space and other settings, I'm learning that none of that matters. This seems to be an issue with how the iPhone displays photos in the Photos app. An original photo with bright whites, such as sun through an open window, will display as very bright white with plenty of contrast in the Photos app. If I send that photo to another app, such as Lightroom Mobile or Snapshot, the whites appear dimmer. If I export the photo from Lightroom Mobile back to the camera roll (Photos app), the whites appear much dimmer in the exported photo compared with the original. Even if I take a screen capture of the original bright photo, the whites in the screen capture appear much dimmer than the original photo. I can't even send you an example, because if that photo goes anywhere else, the whites are dimmer and the photo has less contrast than the way the original looks in the Photos app. For example, I transfered the original photo and the dimmer Lightroom Mobile export photo both to my MacBook, and side-by-side in Photoshop they are absolutely identical. The same is happening on my wife's iPhone 13. The Photos app seems to be displaying out-of-camera photos with more brightness and contrast than they actually have. This can't be an isolated incident, so I'll search Google for an answer. Thank you again.
In Settings>Photos, there’s a toggle to turn on “View Full HDR.” It’s on by default. Having this turned on makes photos look different in your Photos app than ANYWHERE ELSE you put them! This applies to all photos -- not just HDR photos. And it's most noticeable with photos that are contrasty with bright whites.
It’s a misrepresentation of your photo, so if you post to Instagram, for example, the photo will look different there. If you transfer the photo to your computer for processing, it’ll look different there. Even if you send the photo to a friend who has an iPhone, it’ll look different there. EVEN IF THAT FRIEND HAS “VIEW FULL HDR” TURNED ON!
With “View Full HDR” turned on in your settings, photos in your Photos app look brighter with more contrast than they actually are. And the effect is only applied to photos in the app that you originally took with your camera. If you process the photo in another app (such as Lightroom Mobile) and return it to the Photos app, you’ll see the duller (more accurate) version.
So with this setting turned on, your photos will look more dull and less contrasty on Instagram and to your friends than what you think you are posting/sending.
I've Googled this, and am surprised there isn't more about it. For serious photographers, it's trouble.