Gary Wolstenholme reviews the new, more compact, Panasonic Lumix G Vario 14-140mm f/3.5-5.6 telephoto zoom lens.
Consistently good sharpness throughout the zoom range; Low distortion and falloff; Effective stabiliser; Compact and lightweight; Good build quality
CA levels may be high enough to cause concern for some; Maybe a tad expensive (but probably worth it!