What is the absolute best all-around zoom lens for the Panasonic S5II right now because I am honestly losing my mind trying to pick one. I have been shooting with Lumix for years, moved from the G9 to the S5II recently to finally get that phase detect autofocus but my current lens situation is a total mess. I have been adapting some old Sigma EF glass with an MC-21 and the autofocus is just... not it. It hunts way more than it should and the weight is killing my wrists on long shooting days.

I am heading to Tokyo in three weeks for a big documentary-style travel project and I need one lens that can stay on the body 90% of the time. I have been looking at the Lumix 24-105mm f4 because of the dual IS but then I see the Sigma 24-70mm Art and worry I will miss that f2.8 for low light street stuff. But then there is the new Mark II version of that Sigma? Or even the 28-200mm travel zoom?

• Must handle the S5II autofocus properly without pulsing
• Budget is $1300 max
• Needs to be decent for video (minimal breathing)

I just want something that doesnt feel like a total workout to carry around all day but still looks professional for client work. Does anyone actually use the 20-60mm kit lens for serious stuff or is that just a waste of time...