When I had my old OM (film) series camera I always had a 70-150mm Tamron or something on my camera (I can't recall the brand or focal length). But 20 years later I am discovering that I like wide angles. My OM-1n came with a 50mm which I really disliked for some reason. But I liked the way faces came out in the 70mm setting. Now, I shoot a lot of group scenes (not just one face but a family) or a landscape which I could care less about when I was younger. It was all shots of chicas. I have the 12-50mm kit and almost always keep it at the 12mm setting. I recently bought the 7.5mm Rokinon lens which I really like but it's a fisheye and isn't a "normal" wide angle lens. Which had it's pluses and minuses. So I am thinking I want a good wide angle lens. The 12-50mm fits me well but I want to push the extreme. I've looked at the two lenses in the title and I am thinking I need to spend my tax return on one of them. The Olympus is around $600-700 and the Panasonic is $900+ depending on where you buy it. The reviews say the Pan is better optically than the Oly. Would you spend the extra $300+ on the Panasonic?