sungphoto wrote:
...sometimes will hunt a couple times or so before nailing focus on a lower contrast surface.
This shouldn't depend on the lens but on the camera and the way its AF works.
Let me add that, instead of specialized cross-type sensors (which look for detail in both horizontal and vertical directions like on DSLRs), the phase-detection pixels on a mirrorless image sensor are primarily line-sensitive (typically horizontal).
sungphoto wrote:
For those that have used both the Z and G version, is it worth switching up?
I had the 105 G, then bought the Z 105 MC. I compared them side by side and my findings are:
- the Z is sharper
- the Z has negligible fringing (LoCA) at the wider apertures, while the G suffers from it (but it can be reduced to some extent by using NX Studio);
- I prefer the out-of-focus rendition of the G lens.
I kept the Z and sold the G because the latter was slightly off-center.
I still own the Zeiss 100/2 Makro-Planar and have compared it to the Z 105 MC: the Z is sharper but the Zeiss has smoother transitions from the plane of focus to the out-of-focus planes. Therefore, the Zeiss has definitely more 3D rendering and has a more neutral color rendition. It suffers from LoCA though. So, in the end, I kept the Z 105 MC (sharp, with AF, VR & lighter than 100/2 + FTZ II) and the 100/2 Makro-Planar (great built quality, nice rendition overall).