Portrait Lens Comparison
on Fuij X-Pro-1
Fuji XF 56mm f 1.2
Voigtländer Nokton 50mm f 1.1
Summilux-R 1.4 / 80mm

These three lenses have several similarities: huge aperature, a lot of glas, high bulding quality and a similar focus length:

Fuji XF 56mm has a 84mm full format (FF) equivalent. 405gr

Voigtländer 50mm with Leica M adapter has a 75 mm FF equivalent. 435gr +Leica M adapter

Leica R Summilux 80mm with Metabone Speedbooster has a 80mm FF equivalent. 700 gr + Metabone Speedbooster

 

I used these two motives for all three lenses to compare "bukeh", Depth of field (DOF) and sharpenes. All images taken with tripod, ISO 200 and variated exposure time.

 

DOF (Depth Of Field)Test

 

   

Conclusion DOF:

Maybe as expected the XF 56mm and the Leica 80mm have a quite similar DOF: Focal length is almost the same, the aperature is the same (SpeedBooster) and last, but not least the closest focal ranges are almost the same. The Fuji is built in 2014 - Leica in 1991...

The Voigtländer is different: The focal length is longer and even though the max. aperature is higher than for the the two other lenses the DOF is considerable larger. This is without doubt because of the minimum focus range on 1m. The Nokton can collect a lot of light, but the DOF can't mach the Fuji or the Leica.

 

Comments DOF:

All three lenses was focused on theire closest focus range: Fuji XF 56mm: 0,7m - Voigtländer Nokton: 1,0m - Leica R 80mm: 0,75m

The MetaBone Speedbootser on the Summilux 80mm increases the aperature with one step: here from f1.4 to f 1.2 which gives the same aperature as the Fuji 56mm. Converted to full format these to lenses have almost the same focal length: Fuji 84mm, f1.2 (FF) and Leica 80mm, f1.2 (FF). Nevertheless the Leica samples are at the nominal lens aperatures in the table below.

The "f1,2" row in the table for the Voigtländer sample is at the max. aperature f 1.1 and not 1.2 as for the to other lenses.

 

Fuij XF 56mm (84mm)
Voigtländer Nokton 50mm (75mm)
Leica R summilux 80mm (80mm)
f 1,2 (f1,1)
N/A ( se comment !)
f 1,4
f 2,0
f 2,8
f 4,0
f 8,0

 

Bokeh Test

 

   

Conclusion bokeh:

Well? This has to be personal. You have to make your own conclusion!

My conclusion: I like the Leica Summlux bokeh best. The second best is Fuji XF 56mm and last the Nokton. The Leica gives softer rings with a more uniform intensity. The Fuij has slitly more ciclelike spots than the two others.

 

Comments bokeh test:

All three lenses was focused on ca. 1,5m.

The Voigtländer Nokton series is a bit darker due to night sky, shorter focallength and selected camera metering. The Speedbooster increases the aperature for the Summilux, so the pictures should maybe be lifted one step up, but I chose to plot them according to the nominal lens aperature.

 

Fuij XF 56mm (84mm)
Voigtländer Nokton 50mm (75mm)
Leica R summilux 80mm (80mm)
f 1,2 (f1,1)
N/A ( se comment !)
f 1,4
f 2,0
f 2,8
f 4,0
f 8,0

 

Sharpness Test

 

   

Conclusion Sharpness:

In general the Fuji is sharpest over the hole aperture range. Wide open the Nokton has noticeable lower sharpness then the two others.

From f 1.4 Fuji and Nokton have similar sharpness while the Summilux is considerable more blury. From f2.8/f4.0 and up to f8 all three lenses have similar sharpness. Over the hole series the Fuji seems to have the highest contrast and best color rendering ability - but that's an other matter...

 

Comments Sharpness test:

All three lenses was focused on ca. 1,5m. The tumbnails below are cropped and resizes to ca. 500% from the bokeh-pictures above. This test is only focusing on center sharpness. Both the Voigtländer and the Leica Summilux have considerable lower sharpness towards the corners. The Fuji is very sharp all over the sensor!

 

 

Fuij XF 56mm (84mm)
Voigtländer Nokton 50mm (75mm)
Leica R summilux 80mm (80mm)
f 1,2 (f1,1)
N/A ( se comment !)
f 1,4
f 2,0
f 2,8
f 4,0
f 8,0

 

Final Conclusion:

I like, and will always like, the Leica R 80mm f1.4! A superb lens! But in the 23 years I´ve owned it, things has happend: Both the Fuji 56mm and the Voigtländer Nokton weighs almost just the half of the Summilux. This in mind, the advantage of Fuji's autofocus, and the incredible sharpness all the way to the corners of the image at all aperatures makes the Fuji a winner here! The Nokton is a nice piece of glas, but with manual focus only and leaking sharpness wide open I se no point in carrying both a XF 56mm and a Nokton 50mm in the bag.

 

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