Zeiss ZF 21/2.8 Distagon infinity focus

2009-08-19 • SEND FEEDBACK |
Related: Zeiss, Zeiss 21mm, Zeiss 21mm f/2.8 Distagon, Zeiss Distagon, Zeiss DSLR Lenses, Zeiss Lenses

I shot the D3x today(not at the location shown at right unfortunately!), along with two samples of the Zeiss ZF 21/2.8 Distagon (see below).

Quite interesting is that the two samples do not agree on infinity focus, with one hitting the infinity stop where focus is optimal, and the other focusing slight beyond optimal. Which lens is correct for true infinity focus? It will take some hours to analyze the series I shot, and I’ll be finishing the ZF 21 review the same way I started it seems: comparing more than one sample!