* Star Letter
Sharpest tool in the box?
The sharpness test of the Z 600mm f/4 TC lens, which you carried out in the April 2024 issue (N-Photo 161), showed an alarming degradation when the teleconverter was engaged. This is completely at odds with the other reviews that I have come across, which conclude that it is almost impossible to detect any such deterioration, just as is the case with the Z 400mm TC.
So I wonder whether you were loaned a faulty or damaged sample for your group test? Maybe, to reassure those who might be
