dagor77 auctioned a 165/6.8 angulon in barrel last month. No, I'm not the buyer. It surprised me that according to his description/experiment, the coverage of this lens seems to be larger than what I thought it should be. Everywhere else I read it barely covers 8x10. Is the barrel version of angulon 165/6.8 a different design than the one in compur shutter?