There have been a lot of comments about how diffraction will, for a simplified statement, destroy the sharpness of a photo. While diffraction does effect a final photo, poor post processing can easily do more harm to a photo than diffraction and appropriate processing will bring out the best of what the captured pixels have to offer. I have posted two images, both shot with the EM-1, Panasonic Lumix G Vario 7-14mm f/4.0 lens at 14mm, ISO 200, 1/80, and f/11 and one image was shot less than 1 second later than the other. The Olympus E-M1_PB091162.jpg photo has had appropriate post processing while the Olympus E-M1_PB091163.jpg photo has not. Note that according DXO Mark test, these images were shot in what DXO Mark has defined as red zones in their charts, which many are making the assumptions that the photos would be garbage due to diffraction. There are also two 100% crops posted. One crop is from the image that was appropriately post processed, Olympus E-M1_PB091162.jpg, and the other crop is from the same photo but with the same processing steps as from the Olympus E-M1_PB091163.jpg. It should be pretty obvious that I could easily make a sound argument on how f/11 destroyed the photos. But it would be an unsound argument , the proof is in the Olympus E-M1_PB091162.jpg and Olympus E-M1_PB091162crop.jpg photos.