Two weeks ago the wife and I were at Silver Salmon Creek in Lake Clark Alaska shooting coastal brown bears. The wife and I each had two E-M1 bodes with 40-150 Pro + TC on one body and the 300 Pro on the other body. We had lots of rain and fog. The DSLR shooters around us were trying to use rain sleeves trash bags, and ponchos to protect their equipment. They had several equipment failures from leaks. The wife and I never covered our equipment and had zero failures or problems. The shot is from my iPhone of my E-M! shooting a coastal brown bear further down the beach. Note the rain all over the body and lens. So very glad we went M43 a couple of years ago.