fcotterill
Well-known member
Nikon lists several of the more recent DSLRs, which extend AF at f8 with penalties. Pg 11 in the D500 Pro Sports AF Guide has a useful table showing available AF points with the 3 TCs - contingent on maximum lens aperture. This should apply to the D850 as it and the D500 share the D5 AF system.
Thus while compatible with 500 PF and a TC14, many AF points are lost around the periphery of the focsuing window. As I recall, AutoAF and 3D modes are grayed out/not available, however, considering the constraints, I've had decent results with this optical setup on the D850: with GroupAF for this leopard, for example.
Thus while compatible with 500 PF and a TC14, many AF points are lost around the periphery of the focsuing window. As I recall, AutoAF and 3D modes are grayed out/not available, however, considering the constraints, I've had decent results with this optical setup on the D850: with GroupAF for this leopard, for example.