Tamron 150-600 or Canon 100-400 II?

[smr]

Hi all,

Currently researching which of these lenses to get... will be mainly used for Wildlife, motorsport (F1, touring cars etc.) Airshows, Portraits of the kids, some macro etc.

I have a Canon 700D at the moment but will be upgrading to the Canon 7Dmk2 next I think. Probably by the end of the year.

Budget wise obviously the Tamron is a fair chunk cheaper at half the price of the Canon, and has a longer reach. I'm just wondering if this lens would suffice for motorsport and airshows as much as I'd like it to. I've heard the AF can be a bit hit and miss (hunts a bit) and the Canon is superfast and doesn't have that problem at all, but is the AF really that poor on the Tamron? Is it good for panning?

If I go for the Canon I'd save up and get one for Christmas, if I go for the Tamron it would be sometime this Summer. I don't mind waiting for the Canon if it's that much better.

If anyone has the Tamron can they shed any light on what it's like for them, which body they're using it on etc.?

 

[smr]

You can also add the Sigma 150-600 Sport to your options list.

I've ruled that out, too heavy.

 

[smr]

If weight is a priority then the Canon 100-400 II is the one to get as it's 500g less than the Sigma 150-600 C.

It is the lightest lens but the Tamron's not much heavier really, however the IQ isn't dramatically different between the lenses so if the Tamron was able to track autofocus whilst panning decently I'd be tempted to go for it.