What System Meets My Many Needs?

Kokeen4231,

An interesting selection of lenses.  It certainly saves £2,000 on my selection.

The Tamron looks like a great lens that is slightly let down by its autofocus speed.  I have no experience of this lens and am going on reviews and other peoples comments.

The only thing missing is something greater than 300mm. If an extender is available for the Sigma 120-300mm F2.8 then that is definitely the way to go.

Thank you for that.