My phone has a dual LED flash that's supposed to match the color temperature of the scene, preventing color balance problems like this.
I do a lot of night photography, and I use my NEX-5R. The NEX has a flash, but not a dual LED flash.
Is there some way to connect my phone to my NEX and get the latter to use the former as a flash? I can't do it manually because I can't synchronise the exposure times that precisely, and even if I did, the metering will probably be off.
Alternatively, I could leave the smartphone's LED on continuously, using the torch mode, but I doubt it tries to match the color temperature of the scene, because no one needs a torch to do that.
Is this a solvable problem? In case it matters, I'm using the iPhone 6 now, but I'd like a solution that works for Android as well.