Loving new Panasonic 35-100mm f2.8

Cool set of images. Thanks for posting. I am loving my 35-100mm as well. Just curious why only one of them was taken at F2.8 though. Isn't the point of this lens over the 14-140mm that it can shoot below F4.0?

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GH2, GF1, & ZS3 Sample movies
http://www.youtube.com/user/mpgxsvcd#play/uploads
GH2 Setup Walk through
http://www.youtube.com/watch?v=uROQbbiiO2I
http://vimeo.com/user442745
GH2 Pictures
http://www.dpreview.com/galleries/4222674355/albums