Im considering buying this lens, but I'd like to be able to use it on BOTH my Fuji X-T5 and Nikon Z6. Hence, I'd prefer the M mount version for versatility.
I know the M mount version works well on the Fuji as a ~60mm.
How does it perform on the Z6 compared to the native Z-mount version? Specifically, does field curvature negatively impact bokeh or landscapes images when stopped down? I'm not concerned about corner performance at infinity when wide open at f/1.2.
dmsigi wrote:
Im considering buying this lens, but I'd like to be able to use it on BOTH my Fuji X-T5 and Nikon Z6. Hence, I'd prefer the M mount version for versatility.
I know the M mount version works well on the Fuji as a ~60mm.
How does it perform on the Z6 compared to the native Z-mount version? Specifically, does field curvature negatively impact bokeh or landscapes images when stopped down? I'm not concerned about corner performance at infinity when wide open at f/1.2.
It performs very well-
Not as good as native but as close as it gets. I would suggest getting the Taritisan 6 bit adapter so your Nikon lens still gets the AF aids on Nikon etc.
I know Sony sensor glass is probably the thickest among all mirrorless camera systems. In real life situation, how much penalty is there for Sony cameras? It will be nice to see some samples. I am also after flexibility to use m-mount on different systems. Thanks
Tim Zhou wrote:
I know Sony sensor glass is probably the thickest among all mirrorless camera systems. In real life situation, how much penalty is there for Sony cameras? It will be nice to see some samples. I am also after flexibility to use m-mount on different systems. Thanks
The main drawback is field curvature. Sony's thicker sensor cover glass amplifies the natural outward field curvature already present in the CV 40/1.2. What this means in practice is that if you shoot a flat subject extending from the center to the edges and focus on the center, the edges will fall out of focus since they don't lie on the same focal plane. Wherever you place focus (center, mid-field, or corner) sharpness will still be there, but the overall rendering is affected. Parts of the scene that should fall out of focus and blur smoothly can instead fall onto the curved focal plane and appear sharp.
For example, if you focus on a subject at mid-distance near the center or mid-field, the background at the corners (which should be blurred) may appear unexpectedly sharp. This looks unnatural and distracting, and it's a direct consequence of using a lens design not optimized for the thicker cover glass.
Fred Miranda wrote:
The main drawback is field curvature. Sony's thicker sensor cover glass amplifies the natural outward field curvature already present in the CV 40/1.2. What this means in practice is that if you shoot a flat subject extending from the center to the edges and focus on the center, the edges will fall out of focus since they don't lie on the same focal plane. Wherever you place focus (center, mid-field, or corner) sharpness will still be there, but the overall rendering is affected. Parts of the scene that should fall out of focus and blur smoothly can instead fall onto the curved focal plane and appear sharp.
For example, if you focus on a subject at mid-distance near the center or mid-field, the background at the corners (which should be blurred) may appear unexpectedly sharp. This looks unnatural and distracting, and it's a direct consequence of using a lens design not optimized for the thicker cover glass....Show more →
RoamingScott wrote:
What is better? Field curvature can add to the look of an image
I see what you mean, but that's not the look Cosina intended for this lens. The lens already shows some outward FC, and mismatching it with a different sensor only makes that effect more pronounced.
If someone actually likes the extra field curvature (beyond the lens's native behavior) that shows up, especially when shooting wide open, that's a different story.
I know with the updated VM models there was an improvement in the onion rings. For Sony, do they all still have them - both the SE version aswell as if I were to buy brand new now?
Yogifi wrote:
I know with the updated VM models there was an improvement in the onion rings. For Sony, do they all still have them - both the SE version aswell as if I were to buy brand new now?
The Voigtlander 40mm f/1.2 Nokton was first released in 2017, starting with the E-mount version. The M-mount came later. That makes it about eight years old now, and it is likely that Cosina has updated its aspherical production methods over time.
I originally had the 40/1.2 in E-mount, then later in M-mount, and I also tried the SE version. All of them showed a similar level of onion pattern in the highlights. The only real improvement I noticed was in the new 40/1.2 M-mount Version II. It is possible that newly produced E-mount copies also benefit from the updated aspherical production, but I can't say for certain. Someone would need to buy a fresh batch to confirm this.
