Originally posted by -wikstrom- Well, I think that maybe the 60-250 with the new TC is a bit pricy for me at the moment but is definitely worth considering. I previously had a Tamron 18-250 (which I now has sold) and at the 250mm it was a bit short and slow for shooting birds.
---------- Post added 09-30-14 at 04:27 PM ----------
For sports I'm thinking of shooting football (soccer for all you Americans) but mainly I will use it for photographing small birds.[COLOR="Silver"]
Okay. Do you know if the IQ and AF speed are equal on the 60-250 and the 300? From what I've read here on the forums both seem to be excellent lenses.
Since both lenses are SDM I suspect the AF speed are similar.
I have the DA*300 and can attest to its hi IQ, I have also seen very fine pictures with the 60-250 but do not have personal experience.
If your sports shooting is primarily outdoors in good light and want a dual purpose lens for tiny birds, maybe one of the Sigma 500mm zooms should be in consideration.
I use a 50-500 for daytime football (both types) and it does well there.
I use a monopod to assist as it is a heavy lens.
The cons with the 500 zooms is they are heavy and need more light.
Decide which of your two uses is more important.
If it is little birds then you will always want the longest lens you can afford.