I've been reading about those pesky grid lines that show up in people's photos when shooting backlit subjects. Never having experienced them myself I began to wonder if maybe I had a faulty XP2 because they weren't showing up. So a few days ago I went outside on a bright sunny day and shot directly into the sun. After loading the RAW images into my iMac I went searching for them. But I couldn't find them! So as not to be excluded from the club I looked very hard - had to zoom in 300%. Still...
X-Pro2 grid lines
X-Pro2 grid lines