Hasselblad made a right angle cable release (elbow) adapter for the Hasselblad 500C/CM.
Well, when you are focusing the lens it is a lot easier to do so without the cable release poking out in your way.
This Hasselblad "elbow" also keeps the cable release out of the way when using a lens shade.
Either way it is a neat idea.
There are two versions:
One is short and about 60°.
The other is longer and is 90°.
Your choice: $12 + $3 shipping
Buy both $22 + $3 shipping