Instruct: Classify Amazon reviews into positive or negative sentiment
Query: WOW what a lens.....

I have the 24-70 F2.8 lens and just purchased the 24-105 F4 lens. The new(for me) 24-105 is a very nice lens to use as a all around lens. It is lighter than the 24-70. It's almost a perfect lens... if only it was a F-2.8 lens.