Not only does the Olympus Pen work, I freaking love the shots that came out! At first I didn't realize that this was a half-frame camera (and accidentally took a photo of my computer monitor as I was reading the manual), and I'm madly in love with how the photos look. They're a little overexposed, and someone suggested that I set the camera to a higher ASA setting. Will be testing out the flash tomorrow when I terrorize the streets of Ortigas with Ade and probably the Mordo. I'm so happy I rescued it from the vintage shop from whence it came from!