I want to send my Sigma 50 f/1.4 lens in for calibration due to soft focus at wide aperture.
Would it be wise for me to send my Canon 40D camera along with the Sigma lens?
Or sending the 40D is not needed?
And another question is that I bought the lens used from a member here. I also have the warranty card, but it's in the previous owner's name and address.
Will Sigma still honor the warranty work if I have a copy of the receipt (purchase date: 11/23/2009)?