Dec 18, 2012 - Have you ever tried to take pictures with your iPhone outside on a sunny day? It's hard to see what is on the display because the sun washes it out. The Daylight Viewfinder changes that. Sig Innovations, LLC marked the official launch of its patent-pending eyepiece accessory for iPhone photography. The Daylight Viewfinder is a viewfinder eyepiece for the iPhone, iPod touch, and iPad that blocks out external light to make taking photos in bright sunlight easier.