TTartisan announced a new 100mm f/2.8 2x "bubble bokeh" full-frame macro lens for M42 mount (can be used on other cameras with an adapter). The lens is priced at $155 and orders will be opened soon.
Update: the lens is now available to order:
Sample photos can be found here:
Additional; pictures:
Note: the lens can be mounted to all types of cameras, such as Sony E, Canon RF, Fuji X, Nikon Z, Leica L, Leica M, Nikon F, and Canon EF cameras with an additional adapter.
Additional information:
Additional pictures of the TTartisan 100mm f/2.8 2x bubble bokeh macro lens:
