Photos taken with (or occasionally, perhaps, photos of, or articles mentioning) the Voigtlander Nokton Classic 40mm f/1.4 lens.
It’s a great little lens that I used on my Sony NEX-6, and now use with my Alpha 7. It’s a useful focal length for general use, wide enough aperture to be able to get quite shallow depth of field, and it’s small and light. Handling is great, as is build quality. Images get noticeably soft and warm at f/1.4 (though not excessively so), but it gets decently sharp and ‘normal’ when stopped down a stop.