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In May this year Panasonic announced the first premium, constant maximum aperture zoom for a mirrorless system, the Lumix G X Vario 12-35mm ASPH Power OIS. Now, after months of teasing and showing of prototype models at trade shows and press events, it's come out with a telephoto companion, the Lumix G X Vario 35-100mm F2.8 OIS. Clearly both lenses are designed to complement the company's new flagship camera, the Lumix DMC-GH3, and feature a matching dust- and splash-proof design.

The 35-100mm is impressively compact in size, and significantly lighter and more compact than notionally-similar 50-150mm F2.8 lenses for APS-C SLRs, let alone 70-200mm F2.8s for full frame. However this comes with a trade-off in terms of its ability to isolate subjects by blurring the background - in this respect it'll give similar results to an F3.5 lens on APS-C, or an F5.6 lens on full frame.

Naturally the lens is designed with movie shooting in mind, with a linear stepper motor for near-silent autofocus, and Panasonic's video-optimised 'Power OIS' stabilization system. The complex 18 element / 13 group optical system features elements crafted from Ultra Extra-Low Dispersion (UED) and Extra-Low Dispersion (ED) glass, and uses Panasonic's Nano Surface Coating to minimize internal reflections and flare. The diaphragm uses 7 rounded blades to give a circular aperture for attractive rendition of out-of-focus backgrounds. On paper this all adds up to a tempting specification.

Being a Micro Four Thirds lens, the 35-100mm will work on Olympus cameras just as well as Panasonic's Lumix G models, and it looks like particularly interesting match to the Olympus OM-D E-M5 - one of our favourite cameras of the past year. Of course it's also likely to appeal to users of Panasonic's enthusiast bodies, such as the DMC-G5 and GX1.

Headline features

  • 70-200mm-equivalent focal length; constant F2.8 maximum aperture
  • 'Power OIS' optical image stabilization
  • Dust- and splash-proof design
  • Nano surface coating for suppression of flare and ghosting
  • 'HD' designation - near silent operation during video shooting
  • Micro Four Thirds mount for Panasonic and Olympus cameras

Angle of view

The pictures below illustrate the focal length range from wide to telephoto (taken from our standard shooting position).

35mm (70mm equivalent) 100mm (200mm equivalent)

Panasonic Lumix G X Vario 35-100mm F2.8 Power OIS specifications

 Product Code  H-HS35100
 Maximum format size  Four Thirds
 Focal length  35-100mm
 35mm equivalent focal length  70-200mm
 Diagonal angle of view  34° - 12°
 Maximum aperture  F2.8
 Minimum aperture  F22
 Lens Construction  • 18 elements in 13 groups
 • 1 UED glass element
 • 2 ED glass elements
 Number of diaphragm blades  7, rounded
 Minimum focus  • 0.85m / 2.8ft
 Maximum magnification  • Approx. 0.1x (0.2x 35mm-equivalent)
 AF motor type  • Linear Stepper Motor
 Focus method  Internal
 Zoom method  Internal
 Image stabilization  • Power OIS
 Filter thread  • 58mm
 • Does not rotate on focus
 Supplied accessories*  • Front and rear caps
 • H-HS35100 Lens hood
 • Lens storage bag
 Weight  360g (12.7 oz)
 Dimensions  67.4mm diameter x 99.9mm length
 (2.7 x 3.9 in)
 Lens Mount  Micro Four Thirds

* Supplied accessories may differ in each country or area