The Germany company Meyer-Optik-Görlitz took the Chinese Zy Optics f/0.95 lenses and “upgraded” them. UPDATE: Meyer-Optik-Görlitz contacted me to share the following info:

“Components for Meyer-Optik-Görtlitz lenses are :
*   sourced internationally
*   assembled, adjusted, tested and therefore made in Germany
*   shipped with a 5 year guarantee from a German manufacturer”
*   Our lenses are improved in terms of material characteristic and mechanical quality
*   To name a few: We use alternative components, eg. use materials supplied by a supplier of the German Avionic industry to guarantee precision
*   we apply high-tech oils to improve slide ways and adjusting ranges
*   special focus is assigned to quality assurance and minimization of the serial spread. Thus our QA testing and adjustment for each lens takes up to 3,5 h and 2 h on average.
*   Our close quality tolerances currently lead to a  reject rate of 50% for core components

This means they add a serious quality control on the Zy Optics lenses.

Their Nocturnus 35mm f/0.95 E-mount lens is priced at 1.999 Euro and has the exact specs of the 2-3 times cheaper [shoplink 33793 ebay]Zy Optics 35mm f/0.95 lens you can find on eBay (Click here)[/shoplink]. The same lens also can be found under the [shoplink 33798 ebay]Mitakon brand name (Click here)[/shoplink].
Their Nocturnus 50mm f/0.95 E-mount lens is priced at 1.999 Euro and has the exact specs of the 2 times cheaper [shoplink 33795 ebay]Zy Optics 35mm f/0.95 lens you can find on eBay (Click here)[/shoplink]. The same lens also can be found under the [shoplink 33799 ebay]Mitakon brand name (Click here)[/shoplink].

Real-world test: the Sony a6000 goes surfing with Chris Burkard

Sexy: A7S + Voigtlander Nokton 35mm 1.2 at SonyAlphaForum.
Best Sony E-Mount Lenses for Portraits, Landscapes, and Street Photography (SonyAlphaLab).
Tamron 15-30mm toma de contacto (DSLRmagazine).
Sony Aims at Automotive Cameras (Image Sensor World).
A7 MK II + lots of legacy lens (Pantip).
Voigtländer 40mm Nokton f1.4 test at SonyAlphaForum.
A Comparison of How Olympus and Sony’s 5 Axis Stabilization Work (ThePhoBlographer).
Subal Sony Alpha 7 Housing: First Look (DivePhotoGuide).
A Comprehensive Guide to Camera Lens Design and Zeiss Nomenclature (iLoveHatePhoto).

Luke: “Just thought that I share a short video I shot this weekend with new Zeiss 16-35 F4 on my A7s. All of the footage is handheld using Hondo Garage’s Pop and Lock (an invaluable tool that I can’t recommend enough http://www.hondogarage.com/index.php/product/landing/the-pop-and-lock-travel-rig. https://vimeo.com/119634534. I am quite pleased with the results and am happy with how sharp this lens is even completely wide open.”

Bernard: “A new test has been added for the Sony A6000 with a Rokinon 7.5mm lens. For over a year, people visit the site to compare different possible combinations of cameras and lenses for panoramic photography. The addition of the Sony A6000 complements the range presented on the site. A modification was done on the Sony A6000. Improve the standard Sony E-mount with the Fotodiox TOUGH E-Mount. This all-metal mount replaces the two-part mount that comes with most Sony E-mount cameras. Of those two parts, the actual mount that holds the lens is made of plastic, which is susceptible to wear and lens movement. By removing four screws, taking out the two mount parts, and inserting the TOUGH E-Mount, you give your camera a stronger and more durable lens connection. Of all sets that have been tested by quebecpanorama, the Sony A6000 with Rokinon 7.5mm lens is the one that offers the best value for money. The impressive quality, coupled with the ease of transportation, seduced us, so it became the official QuébecPanorama set. http://quebecpanorama.com/en/kits/view/rokinon-7.5mm-for-sony-sony-a6000“