lensfan wrote:
Is there decrease in image quality when adapting Leica M-Mount version of the lens to Sony E-mount? I have a feeling I'm not getting the maximum quality on A7R IV compared to what I get with my CV 2/50 APO which is native E-mount lens.
The M-version is definitely not optimal on the Sony sensor stack.
From the review, here are the corners showing the Voigtlander 35/2 APO on Leica and Sony:
Yep, got 35 APO for Sony - much better IQ.
However, lens hood for Sony is not convenient compared to Leica version - won't be using it. 50 APO for Sony has similar bad design - not using it either.
For anyone considering these fine lenses, some data on the (included) E-vsn hoods:
35/2 APO - alone 11 grams, with dedicated hood cap: 22 grams, len/wght with hood/both f/r caps: 104mm, 400g.
50/2 APO - alone 16 grams, with dedicated hood cap: 27 grams, len/wght with hood/both f/r caps: 106mm, 415g.
As Zeiss stipulated for the Loxia 85/2.4, tubular metal hoods are included because it is assumed users want the best protection from stray light to maintain maximum lens contrast. It indicates the intention to provide adequate protection for the best optics in these respective lens ranges. Finely finished in matte black with a grooved inside surface helps to explain their expense. By comparison, the $129 hood for the M vsn of the 50/2 APO is tiny and the lens is much more exposed, perhaps a clue about RF needs and what they expect users to do with each version.
E-CV's 'hood cap' helps keep dirt and stray fingers off the element (or filter). This cap is the exact same diameter as the hood. Extremely efficient - just a soft pinch to take off the cap and you are ready for action. Things like this easily save me 20 mins a day.
While mounted on a body, each hood fits well into most small camera bags, like LowePro's excellent Apex 120 AW. These two lenses are near-identical for rapid operational use when swapping, and the hoods are the best way to tell which one you have in hand.
Since the 35/2 Apo Lanthar is now also available as a native Z-lens and a main source of information are threads like this one, maybe some additional data.
They (E vs Z mount version) differ slightly in size and weight. Z-version is a little bit bigger and weighs a few grams more.
CV 35/2 AL-Z = 70,4 mm + 360 g vs CV 35/2 AL-E = 67,3 mm + 352 g
Filter size is 52mm vs 49mm (E-mount), the Z-version only comes with one lens cap in 52mm, which fits both the lens with and without the metal hood.
With mounted hood the cap fit is fiddly.
The CV 35mm f/2 AL-Z has a dedicated aperture ring with 1/3 click-stops from f2.0 to f16.
In contrast to the E-mount version, on the Z-mount version, the click-stops cannot be switched off for video usage.
Z version of the 35/2 Apo-Lanthar is making use of the focus confirmation box.
The same principle like in AF-S mode with Single-point AF box.
The outer frame of the AF-box is turning from red to green as focus confirmation and you can move the box around in the same way.
All in all, also in the Z-mount version a wonderful lens.
Snapshot taken in a hurry while walking with the dogs, hard light and yet I am always surprised at the resolution, clarity, contrast, the colors and the pop of this gem/lens.
Good to see Cosina are doing the small things to further develop their premium lenses to suit recent releases on other mounts. Agree with your sentiments here. I believe the CV APOs are more European in style than the competition's lenses, which makes sense when you realise their fondness for traditional photographic values, business dealings with CZ and their love of Leica imaging.
True, I think it already benefits from it with a good dose of vignetting added
The intensity of the vignetting could certainly be discussed, just for a quick comparison.
I love photography, started in the late 70's as a teenager with the Pentax Spotmatic SP II of my dad.
The whole process of finding the image, of exploring, beeing outside, absorbing the light mood, beeing reduced to one focal length, but digital post processing will never become my hobbyhorse, unlike analog developing. BuldernCastleAddedVignetting
21/3.5 Colar Skopar + 75/1.5 Nokton, both are to complete my CV 35/2 AL-Z in the near future, as a small, super lightweight MF-lens travel-combo, let's see if I have the patience to wait for the Z-mount versions.
Vento wrote:
Congrats!
I am sure it will be in good hands.
Thanks, but you're tempting me to buy the 35/2 AL too
Vento wrote:
21/3.5 Colar Skopar + 75/1.5 Nokton, both are to complete my CV 35/2 AL-Z in the near future, as a small, super lightweight MF-lens travel-combo, let's see if I have the patience to wait for the Z-mount versions.
I am waiting for 21/1.4 and 110/2.5 AL
At present my lightweight kit is 14-30/4 S + 50/2 AL + X, where X can be either Zeiss 100/2 Makro-Planar or 135/2 Apo Sonnar or Micro-Nikkor AF-S 105/2.8G VR
