Last month I reported about a not yet announced 7Artisans / DJ-Optical 50mm f/1.0 mirrorless lens that appeared in one of the promo pictures (see this and this post).
I contacted the manufacturer directly and they confirmed that they do not have any plans to release such lens. They will be however releasing a new 7Artisans 35mm f/2 rangefinder coupled lens for Leica M-mount - see this post for some pictures of the new lens.
7Artisans lenses can be purchased at: Amazon US, Amazon UK, Amazon DE, eBay US and eBay UK.
