I was curious when I got it and ran it side by side with my MP TTL and they were basically the same, what I should do is run it against my Sekonic and see if that still holds, I’ll try to get it to it when back in Anchorage after weekend. So far I have no complaints about the Cosina except the foot is a bit odd it in that it fits the M4 cold shoe but not the hot shoe of the MP (as a backup) as it is too thick for the MP. I’ll look at the Cosina with the Sekonic and report back. I am out and about with my MP at that moment off the grid.