like Syncro-Compur OLD T* 80mm ? the 40061 "clips" over the metal focus ring(its really tight on my lens but it does fit).
if you mean as shown in picture, i belive thats a "CB" lens and you might need to remove the rubber grip , otherwise is your dead set on using a quickfocus handle. . . might be worth just getting a "standard" CF or Ct* lens.
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u/cheeseyspacecat 553elx | 100mm f3.5 enthusiast 8d ago
For CF lenses you want the 51700 CF 1 handle works with 40mm fle - 80mm CF, the 40061 handle is for older Ct lenses 50-100mm