Which zoom should I buy?

[tdmvet]

Hi ,
A relative newbie , still learning loads, I have taken about 3 weeks to realise the sigma 70-300 dg from fleabay is not a great lens - seems to have focus issues .
I was looking at upgrades , specifically the canon 70-200 F4 , sigma 70-300 OS , canon 70-300mm IS , and poss if I wait a few weeks to get the cash together the sigma 70-200mm F2.8 .
It is to be used with a 10D ( for now!!)
General purpose mainly though will be some indoor work in sports hall type settings.
What do people have / and or advise
Thanks

 

[awp]

For what you ant it for you should be looking at a 2.8 lens.

 

[Andy77]

I just sold my canon 70-200mm F4 L on here last night, but anyhow as for upgrade the canon 70-200 f4 L is a great lens the reason ive sold mine is because im getting the siggy 70-200 2.8 + 1.4x tc.

Heres a few taken with my canon 70-200 F4 L last week

Andy