Walimex is well known for low-cost and sometimes unconventional solutions. After initial doubts, I have struggled through to try out the adapter and have my Leica lens (Leica Apo-Telyt-R 280 mm f / 4.0 APO) so attached to my Hasselblad H4D. Bit fiddly, but keeps after a few days of drying bombproof. So however bombenfest that I no longer abbekomme it. The images appear to be of considerably poorer optical quality since me. Must there probably read me again.