The lens is all metal with manual focus and feels very solid.

The Nokton is a CPU lens and meters on all Nikon DSLR.
The aperture ring needs to be set to f/16 (orange).

All samples are shot with f/1.4:

Unlike the Nikkor f/1.4 50mm, at f/1.4 the Nokton delivers excellent results.
The depth of field is then very shallow of course and can be difficult to set.
In the viewfinder, a green dot is displayed for subjects in focus in the center frame
(The AF mode is set to Single Area [.]).

f/1.6 1/40s (handheld)

1:1 crop lower-left corner

f/1.4 1/10s (tripod)

1:1 crop

f/2.0 1/60s

1:1 crop

f/3.2 1/125s

1:1 crop

f/2.5 1/100s

f/2.5 1/80s

f/3.5 1/200s

f/2.8 1/125s

The free function plugin "HDR" for cPicture can combine several pictures taking at different exposure levels using the "enfuse" program.
No complicated settings and fully automated. Unlike different complicated HDR software, you only select the pictures and the plugin is doing the rest.

Example:
In the following example the first picture is correctly exposed for the interior, but leaves the bright window areas over exposed.
The second picture is correctly exposed for the window area but leaves the interior under exposed.

The function plugin "HDR" combines the two pictures to create a single picture with correctly exposed areas: 

 +     =   

To create a combined picture:

1. Select the individual pictures with the different exposure levels:
   
   
   
   
2. Select the function plugin "HDR" from the menu in cPicture:
   
   
   
   
3. Confirm the settings and click "OK":
   
   
   
   
4. The output of "enfuse" is displayed in the console window:
   
   
   
   
   Click "OK" to close the window.
   The combined picture is created and will be displayed in cPicture as a new picture.

Installation:

Download the plugin from http://cpicture.net/en/cpp_hdr.zip
and unpack the cpp_hdr.dll and the enfuse.exe in the same folder where you copied cPicture.exe.

The updated language versions will follow shortly.