LUMIX 12-35mm F2.8 Leica Vario HD

Optics

 The lens's optical construction comprises 14 elements arranged in 9 groups. This design includes specialized elements to enhance image quality and minimize aberrations.

Aperture Details

 The lens features a 7-blade diaphragm, which contributes to a more pleasing bokeh effect in the out-of-focus areas of the image.

Focus System

 It has an autofocus system and supports full-time manual focus override aren't specified. The focus method is internal.

Excellent lens that has the following special features:

Pros

• 24-70 mm in full frame
• waterproof, so it is able to work in dusty or splashy conditions. Ideal pairing is with the GX8 or GH4.
• has a low weight (305 grams) and is only 8 centimeters long
• the autofocus is extremely quiet
• O.I.S the electronic stabilization, it can be activated/deactivated with a button

• especially suitable for landscapes, street photos, events
• vignetting acceptable, does not create problems
• distortion within the limits of a lens in this price range
• maximum magnification 0.17 x
• minimum focal length 25 cm
• bokeh excellent, very close to macro performance
• flare barely noticeable, but still present as is the case with all Four Thirds lenses. A millimeter shift of the lens solves any problem.

Cons

The only drawback is the price. It is a lens that cost about $900 and can be found used today around $400. For this price it is a very good investment.

Specifications 

• Max Format Size: Micro Four Thirds
• Lens Mount: Micro Four Thirds
• Lens Type: Zoom
• Focal Length: 12-35mm (24-70mm 35mm equivalent)

Aperture:

• Maximum Aperture: f/2.8
• Minimum Aperture: f/22
• Aperture Ring: No
• Number of Diaphragm Blades: 7

Image Stabilization: Yes

Optics:

• Elements: 14
• Groups: 9

Focus:

• Minimum Focus: 25 cm
• Autofocus: Yes

Physical:

• Weight: 305 g
• Length: 73.8 mm