I might be being a bit dumb here, but I’ve seen hundreds of posts about using an iPhone as an RGB light source but I can’t find anything explaining exactly how you would go about doing that.
What settings do I need to use? Is an app required?
When I tried out my Iphone I downloaded a free app called iSoftBox Creative Lighting, it seemed to work well. You could if you wanted to change the hue and brightness, pretty sure you wouldn’t want to though. I didn’t continue with the Iphone as it is a 1st Gen SE so not one of those recommended as being a good RGB source, and it was a bit dim frankly. Now using the Cinestill CS-Lite.