Have only found out recently that you must use a Sigma TC for this lens... other brands don't play nice and/ or you would have to manual focus.
Also, there are different Sigma TC's so you must match the type with type.
How much more range do you get with the 1.4? When you use the 1.4 does it drop the lens down to an F/3.5 or F/4?? How much did you pay for it? I can't find them in B&H's website.I bought the EX DG 1.4 with mine. I was thinking about the 2.0 also, but was warned that I would not be satisfied with it.
Yes they were. The light was very good so I was able to have a fast enough shutter speed without having to boost up the ISO to allow me the shots hand held. Plus, I wouldn't have had time to set up my tripod for the fox pictures. He was on a mission and kept moving most of the time. Fortunately he stayed along the road for a good distance so I had time to get up in front of him and he didn't seem to concerned about my presence.Very impressive Jeff!! Are those shots hand held?