micksh6, thank you for the reply. The link to your thread on the EPL5 was very useful. Your photos at ISO 12.800 show some banding, but very little, almost negligible. Jorginho however says that banding is "barely visible on the EPL5 at ISO 3200, but clearly so ISO 6400 onwards". Probably differences due to the amount of light on the scene or time of exposure. The remaining of the thread was also very useful about the EPL5.