You can just use f/4 most of the time. 24-70 Nikon f/4 is not that different in size or weight compared to 12-40 f/2.8 Oly. Image quality is still going to be b

You can just use f/4 most of the time. 24-70 Nikon f/4 is not that different in size or weight compared to 12-40 f/2.8 Oly. Image quality is still going to be better.