Seems to be almost the same size of the 14mm pancake when collapsed.

the lack of focus ring is another major fail from panasonic. I really dont understand why they release a video oriented camera like my gh3 but all lenses are not cine lenses ...

The Panasonic 12-32mm shows impressive sharpness throughout the zoom range, even wide open. There is some slight corner softness, even at the smallest of apertures, but overall it's relatively minor. Diffraction limiting softness is also present to a minor extent from ƒ/16-ƒ/22, however ƒ/16 still displays reasonably sharp centers. All in all, the little Panasonic 12-32mm lens is fantastically sharp

http://slrgear.com/reviews/showproduct.php/product/1661/cat/69

There are some videos using this lens on this thread I think...

http://personal-view.com/talks/discussion/8254/panasonic-gm1-official-topic/p1

The 12-32mm produces very sharp images throughout the entire zoom range, even into the corners. The 12-32mm produces images with nice rich color and good contrast throughout the range. Images are crisp and provide some punch to the images

http://admiringlight.com/blog/review-panasonic-lumix-12-32mm-f3-5-5-6-ois/

This is one of those times when a lens manufacturer just gets everything right. This optic is sharp, lightweight, compact, nice to use and not overly priced. Some people may find the lack of a manual focus ring is not for them, but even so, it's difficult to not be impressed by this little lens.

http://www.ephotozine.com/article/panasonic-lumix-g-vario-12-32mm-f-3-5-5-6-asph--lens-review-24162

Having acquired this lens with the GM1, I find it to be a pleasure to shoot with, showing surprising quality for a kit zoom. It offers me a true wide angle at the 24mm equivalent and is sharp wide open. It handles flare and CA as well or better than any other lens I’ve used for the system and it’s nearly the size of the Lumix 14mm pancake lens. It all adds up to a pretty killer little package.

http://tysonrobichaudphotography.wordpress.com/2014/03/27/panasonic-lumix-g-vario-12-32mm-f3-5-5-6-lens-tested/

it sells on eBay for about $323 incl shipping...

The build quality is surprisingly good, the OIS system effective, and it offers excellent image quality throughout the focal range.

http://www.photographyblog.com/reviews/panasonic_lumix_g_x_vario_12_32mm_f3_5_5_6_asph_review/

@imaginario I used it on the BMPCC. Works! Is small! For Focus you can only use the Focus by the BMPCC. LANC focus works too. Due to the size, I really like it on the Pocket!

So, on a BMPCC no aperture control? No manual focus? And no IS?

@Leto: – Aperture control via keys on the camera = very fiddly. - No manual focus. - IS always on.