The lens we are trying out is known as...
Panasonic Lumix G X Vario PZ 45-175mm f/4-5.6 ASPH/POWER O.I.S. Lens
What a mouth full!
August 2011, Panasonic launched two new powered zoom lenses for
its Lumix G Micro Four Thirds cameras.
Of the two, the Lumix G X Vario PZ
45-175mm f/4-5.6 ASPH/POWER O.I.S. lens provides the longer 3.9x zoom magnification and covers a focal length range
equivalent to 90-350mm (in 35mm term).
According to Panasonic...
"This is the world's First Digital Interchangeable Power Zoom Lens."
"Panasonic introducing a new cutting-edge interchangeable lens LUMIX G X
VARIO PZ 45-175mm / F4.0-5.6 ASPH / POWER O.I.S. with electric-powered
zoom operation from the new premium lens brand “X”.
Panasonic's optical technologies, the “X” lens features a unique Nano
Surface Coating for minimal ghosts and flaring and natural atmospheres
with remarkable transparency."