Panasonic Lumix DMC-GX1 Basic Operating Instructions Manual page 50

Interchangeable Lens (H-PS14042)
"LUMIX G X VARIO PZ 14–42 mm/F3.5–5.6 ASPH./POWER O.I.S."
Focal length
Aperture type
Aperture range
Minimum aperture
value
Lens construction
Nano surface coating
In focus distance
Maximum image
magnification
Optical Image
Stabiliser
[O.I.S.] switch
Mount
Angle of view
Filter diameter
Max. diameter
Overall length
Mass
50
VQT3U05 (ENG)
f=14 mm to 42 mm
(35 mm film camera equivalent: 28 mm to 84 mm)
7 diaphragm blades/circular aperture diaphragm
F3.5 (Wide) to F5.6 (Tele)
F22
9 elements in 8 groups (4 aspherical lenses, 2 ED Lens)
Yes
0.2 m (0.66 feet) (Wide to focal length 20 mm) to ¶ (from the
focus distance reference line),
0.3 m (0.99 feet) (focal length 21 mm to Tele) to ¶ (from the
focus distance reference line)
0.17k (35 mm film camera equivalent: 0.34k)
Available
None
(Setting of the [STABILIZER] is done in [REC] menu.)
"Micro Four Thirds Mount"
75x (Wide) to 29x (Tele)
37 mm (1.46 inch)
Approx. 61 mm (2.40 inch)
Approx. 26.8 mm (1.06 inch) (from the tip of the lens to the
base side of the lens mount when the lens barrel is recessed)
Approx. 95 g
/0.21 lb