Balance bright windows without losing the room.

One frame can only hold so much range

The brightness difference between a sunlit exterior and a shaded interior is commonly six to eight stops, which is at or beyond what a single phone exposure can record. Within that range, recovery is genuinely possible: the file holds compressed but real information at both ends and correction redistributes it. Beyond it, one end has recorded nothing at all.

This is why the same technique rescues one photo and fails on another that looks superficially similar. The variable is not the room, it is whether the original exposure landed inside the sensor's range. Shooting slightly darker than looks right gives correction far more to work with, because highlight information once clipped cannot be reconstructed while shadow information usually survives.

What must not happen at the glass

The view through a window is a factual claim about the property, and it is the claim most likely to be quietly improved during highlight recovery. A hazy grey outlook that becomes a crisp treeline, or a neighbouring wall that recedes into soft light, changes what the property offers.

Legitimate recovery makes visible what the camera recorded but compressed. The test is whether the recovered view matches what the source file contains when it is examined closely, and whether someone standing at that window on a similar day would see the same thing.

• Expose slightly for the window and lift the room afterwards
• Avoid the phone's automatic HDR mode when you plan to correct later
• Shoot when the sun is not directly on the glass
• Take a second frame exposed for the view as a reference