I didn’t buy the Olympus PEN F for its front dial. I bought it, because it is a beautiful camera, matching my silver lenses. The knob at the front is useless for me. You can use it to switch between various “picture modes”. You can use it to adjust colors and contrast, but it is all for JPEG only. Using it is distracting while shooting, and in the end, all the hassle was for a JPEG. You can’t even program it for other functions. If at all, I use it for quickly switching to black and white for preview.
You can imagine, I was not thrilled to find the same useless gadget on the new OM-3. Take it away, give me a better viewfinder instead 😁