Shooting a Canon 7D (APS-C) and I'll shoot with and without a monopod (depending on circumstances) as this will be a hunting safari with my youngest son.
If I'm not mistaken, I believe I would loose AF with a TC on the Canon 100-400mm. Interesting enough, I've read that with good light, the Tamron 200-500mm with a Kenco 1.4x will still AF (albeit slow). I just wonder how much it would need to be stopped down, and at what ISO to get sharp pictures.
The weight of the Tamron is a plus, but pictures I've seen online show the lens looking like a bazooka fully extended! How well does it balance??
