Panasonic Lumix G X Vario 35-100mm f/2.8 ASPH POWER O.I.S Lens review by Ivo Freriks at Camera Stuff Review: Given the optical performances and the high quality of construction, this lens is certainly not expensive.

Panasonic Lumix G X Vario 35-100mm f/2.8 ASPH POWER O.I.S Lens review by Ivo Freriks at Camera Stuff Review: Given the optical performances and the high quality of construction, this lens is certainly not expensive.

The Lens was tested with  Olympus E-M5 and Panasonic GH3 body. 

"The Panasonic 35-100 mm delivers sharp images across all focal lengths from full aperture to aperture 8. Above that, the resolution decreases as a result of diffraction. This is the best micro-43 zoom lens we have reviewed to date, with the Panasonic 12-35 mm yielding more or less equivalent results (but at a different focal length range). In the graph with Imatest values at the right below, you can see how beautifully high and constant the resolution is. The images are measurably sharper in the center, with the maximum being located at aperture 4 to 5.6. Nevertheless, with the naked eye, the difference in resolution between the corners and the center is not visible."

Pros

Micro-43 first bright (f/2.8) telephoto zoom
Optical performances of professional level
Construction and finish of professional level; additionally sealed against dust and water
Compact dimensions and low weight
Built-in image stabilization

Cons

MSRP of a professional standard
Prone to flare

"A fast 70-200mm (full frame equivalent) telephoto zoom lens was missing in the wide range of micro-43 lenses. The Panasonic 35-100 mm f/2.8 fills that gap with gusto. The construction of this lens is – despite its low weight and the compact size – of a professional level. In addition, Panasonic has succeeded in making the Panasonic 35-100 mm the equivalent of a 70-200 mm f/2.8 zoom lens on a camera with a full frame sensor in terms of optical performance. That is a very good achievement, because those lenses are among the best lenses for sale. At a retail price of 1299 Euro's, we are talking about a lot of money. Given the optical performances and the high quality of construction, this lens is certainly not expensive."

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