Sigma vs Tamron

I`ve just seen on Simply Electronics that they have a Sigma 150-500 available but also note that Tamron do a 200-500.I appreciate that there`s a £150 difference but just wondered what the general view was on the pros & cons of both if you had the chance of either.

I`ve checked the pervious topics but they relate to the 300mm lenses from what I can see.

Nic

Tamron don't have the 200-500 in k-mount.

Ahh!!,that put pay to that one with a swift swipe...

Thanks Stefan.

Nic

Pentax every time, you know it makes sense

Nah,making sense would be a Tamron or Sigma and the balance put in my ISA...he he he.

Nic

A Pentax what at 500mm .. there isn't a current 500mm.