If you do have a canon 50, do you like it? Do you use it a lot? What situations do you use it most? Why did you choose the aperture that you did (1.2, 1.4....etc)?
If yours is not made by canon, all the above, plus why did you choose to not go with Canon?
If you dont want one, what are your reasons?
If you are wanting one, what is your purpose to buy it?
Just picking the forums brain a bit!