There is no blue dot. Also the focusing ring moves tight to infinity.
The item "Carl Zeiss Planar T 50mm f/2 MF Lens For Leica M Mount" is in sale since Saturday, September 22, 2018. This item is in the category "Cameras & Photo\Lenses & Filters\Lenses".
The seller is "rarelens" and is located in Pervouralsk. This item can be shipped worldwide.