I posted a similar response in another part of this forum. We actually tested, with a light meter both Leupold and Nikon scopes. The Nikon was a tad bit brighter. I don't think it was enough that most of us could note, but it was brighter. Saying that, I still always go with Leupold. I only own 1 Nikon. It's a great scope but, I have 8 leupolds, Good old made in the USA quality!