Collie lover wrote:
TC, I assume, stands for teleconverter. I've got the same lens and use it on a Canon 60D, but I don't have the TC. Is it worth the extra money? How much closer can I zoom in on my subject?
These are great shots.
Thank you, I appreciate the compliment.
I think it is worth it but would not buy the Sigma. I would get the Tamron:
Price is much lower, less than half the cost of Sigma or Canon.