After purchasing the Zeiss Batis 18mm f/2.8, it quickly became my favorite and most used lens. I loved the Batis 18mm so much that I started looking at the Batis 25mm f/2. The only issue was that I already owned the Sony 28mm f/2. Is the Batis 25mm good enough to justify the $850 price premium over the Sony 28mm? Find out in this review.