Just bought thisWhat to expect?
First off, what did you buy it for? Do you shoot sports or wildlife? You need to let us know these things, anon.
>>4129675What lens is that?
Is that a Sigma lens?
>>4129685WildlifeBird photography especially I came with protective filter and sigma dockUpgrading from a shitty Canon 75-300 kit lens
>>4129720>Upgrading from a shitty Canon 75-300 kit lenshope you don't use AF, since it'll be a downgrade from that. 3rd party lenses are notorious for bad AF especially at supertelephoto focal lengths
Nothing.A 120-300 2.8 plus 1.4 or 2 teleconverter (in case you need that reach) is all you need
>>4129732Depends on the lens. Obviously if you buy an f/6.3 supertelecrap consumer lens you get what you pay for