ExclusiveImprove Focus for a Nikon Z6 or Z7 Camera My Blog TrueToad - September 22, 2020 Improve Focus For a Nikon Z6 or Z7 Camera: When I first reviewed my new Nikon Z7 and Nikon Z6 mirrorless camera two years ago I was somewhat critical of the focus performance in an otherwise excellent camera. Now after 2 years, and several firmware updates I am much happier with my Nikon Z mirrorless cameras for sports and wildlife photography. Why? It starts with understanding Nikon's Focusing system and applying settings for your photography needs.