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Review: Voigtländer 50mm f/2 APO-Lanthar

Posted on February 14, 2021February 21, 2021 by Jordan Steele

Contents

  • 1Construction and Handling
  • 2Image Quality
  • 3Conclusion
  • 4Image Samples

Image Quality

I mentioned at the beginning of this review that the target for the 50mm APO Lanthar was pure image quality, and the lens delivers in that regard.

Sharpness

I’ll cut to the chase: the Voigtländer 50mm f/2 APO-Lanthar is one of the sharpest lenses of any focal length I’ve ever used. It is exceptionally sharp, across the entire frame right from f/2. The extreme corners are very sharp wide open, with the center essentially perfect. Stopping down to f/4 brings the corners from excellent to phenomenal, with no distinction between the center and corner that I can see.

Columbus at Night – Sony A7R IV with Voigtländer 50mm f/2 APO-Lanthar @ f/9, 20s, ISO 100

I say that it gets sharper in the corner when stopping down, but if you shoot at 60 megapixels or less, you will see almost no improvement. Here is a 100% crop from the extreme upper left corner of a test shot at f/2. I only know it gets a little sharper because I took shots using the A7R IV’s pixel shift function to examine the lens at 240 megapixels, where you can see the improvement when stopping down.

Needless to say, this lens is simply an exceptional optic for resolution, and will really shine for landscape use.

Bokeh

The 50mm APO-Lanthar has a moderate maximum aperture of f/2, which allows for some nice subject separation, though without the ability to obliterate the background like faster 50mm lenses. Given the extreme degree of optical correction with this lens, I didn’t expect the bokeh to be particularly good, but I was pleasantly surprised.

Winter Fern – Sony A7R IV with Voigtländer 50mm f/2 APO-Lanthar @ f/2, 1/20s, ISO 400

While the lens doesn’t have extreme creaminess that comes from designs that favor residual spherical aberration, the 50mm f/2 APO does a very nice job, producing pleasing bokeh. Specular highlights are neutral, and there are no nervous double edges or any other distractions. It’s a surprisingly satisfying and smooth look, even with busy backgrounds as in the shot above.

The Voigtländer 50mm f/2 has a unique characteristic with its aperture blades. Like most lenses, the aperture is perfectly circular wide open, but unlike most lenses, the 50mm f/2’s 12 aperture blades are also perfectly circular when stopped down to f/2.8. Stopped down further, the 12-sided aperture can be faintly seen in specular highlights.

Color, Contrast and Chromatic Aberration

With regards to color and contrast, there’s really nothing at all to pick at. Contrast is outstanding at all apertures across the frame, and color is rich. The color and contrast profile fits in well with other Voigtländer lenses, which is wonderful for landscape work.

Winter Reflection – Sony A7R IV with Voigtländer 50mm f/2 APO-Lanthar @ f/5.6, 1/320s, ISO 100

The Voigtländer 50mm f/2 is marketed as an apochromatic lens, and it’s worthy of that moniker. The lens has extremely low chromatic aberration, with essentially no lateral chromatic aberration and very well controlled longitudinal CA. You’d be hard pressed to find any color fringing before or after the focus point, with only trace amounts visible in the most extreme circumstances.

Distortion, Flare and Vignetting

The Voigtländer 50mm f/2 APO Lanthar resists flare very well, with only minor ghosting. A single small red ghost can be seen in some circumstances, but overall the lens performs extremely well against bright light. Veiling flare is minimal as well.

Jogger at Sunset – Sony A7R IV with Voigtländer 50mm f/2 APO-Lanthar @ f/10, 1/250s, ISO 100

Distortion is also quite low, with some mild pincushion distortion that would only be visible when shooting architectural shots with straight lines near the edges. It’s very easily corrected with a lens profile.

The only real optical ‘flaw’ with the 50mm f/2 is vignetting, which is pronounced at f/2, and still visible at f/4. Lens profiles also can easily correct for this, but at the expense of some increased noise in the corners. I’ve never been one to particularly mind vignetting, so this is a complete non-issue for me, but your own opinion may differ.

In all, the Voigtländer 50mm f/2 APO-Lanthar is a truly exceptional optic. It ranks right up there with some of the very best lenses I’ve ever used.

Continue: Conclusion and Image Samples

Pages: 1 2 3

4 thoughts on “Review: Voigtländer 50mm f/2 APO-Lanthar”

  1. Mahesh says:
    February 15, 2021 at 4:01 pm

    I found manual focussing a bit of an issue with its focus throw and the way my A7C works. The focus peaking with A7C was inaccurate and magnification a bit fiddly as you need a few presses before the view returns to normal after magnification. I have removed automagnification and set the video record button to magnify. While I do that, bringing to normal view then takes a couple of additional presses.

    Reply
  2. Mahesh says:
    February 15, 2021 at 4:27 pm

    Hi Jordan, please ignore my previous comment. It is not a big problem. Anyway, I want to ask you between this and the 40/1.2 which reviewed before which one would you recommend? I am trying the 50 APO at the time but tempted by the f1.2 of the 40mm.

    Reply
    1. Jordan Steele says:
      February 15, 2021 at 6:52 pm

      They are two very different lenses. The 50 APO is optically near perfect, as I’m sure you’ve noticed in your use. The 40mm definitely has more character. Stopped down, the 40mm is quite sharp across the frame, but never reaches 50 APO resolution at the edges. Bokeh has a bit more character as well, and there’s some CA on the 40mm also.

      With all that said, the 40/1.2 is one of my all time favorite lenses, and for my own use, I would pick the 40mm. It’s got a wonderful character and rendering at f/1.2, and becomes quite sharp and good for landscape use stopped down. It’s not as technically good as the 50 APO, but it speaks to me more. Alas, I had to let my copy go, as I recently switched over to Canon RF, but I am contemplating buying the M mount version for use on my R5 and R6.

      Reply
  3. Scott says:
    February 15, 2021 at 6:03 pm

    I have both the 50mm f2 APO and the 40mm f1.2. Both are outstanding. The 50 is sharper and more consistent through the stops with a more modern look. The 40 is sharp at f2.8+ and somewhat funky (classic look) at f1.2 to f2.0. The 40 is my standard go to lense.

    Reply

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