Design and features
It's very rare to get enthralled by the build quality of lenses unless you start venturing in to Leica territory. This lens from Voigtlander, manufactured by Cosina, is no ordinary lens. Made in Japan with an all-metal construction, it feels amazing to use — all 410 grams. It's almost double the weight of some of the lightest cameras it can be matched with from Panasonic and Olympus.
We matched the Nokton with theand it was an excellent combination, not too lens-heavy despite the small footprint of this Micro Four Thirds camera. The aperture and focus rings are beautifully textured and have very good resistance, which makes them easy (though not quick) to turn. The aperture ring at the front of the camera has defined clicks which stop the lens down from f/0.95 all the way to f/16. Other markings on the lens are the focus measurements in both metres and feet, while the focus ring itself does not rotate freely but instead stops at either extreme. The minimum focusing distance is 17cm and the filter thread is 52mm (without the lens hood attached).
The Nokton on the GF2 (Credit: CBSi)
The Nokton is an all-manual focus lens and it cannot be used when the camera is in automatic (intelligent Automatic mode in the case of the Panasonic), though it will function in Program mode. This also means that no shutter or aperture measures are recorded in the EXIF data, just ISO. Other minor design quirks include the pinch to remove lens cap, which does come free when the camera and lens is in a bag that doesn't sit snug around the body.
This is a fixed focal length lens at 25mm for the Micro Four Thirds system, which acts like a 50mm lens on a 35mm camera. It has 10 blades and 11 elements in eight groups.
Naturally, given the maximum aperture of the Nokton, you'll want to shoot everything with this lens wide open. It can be hard to determine exactly where you need to select focus, particularly when shooting in low lighting, so you do need to make use of the manual focus enlargement on screen. To get a sharp shot at f/0.95, it is necessary to be very precise with the camera movement once the focus is set. Moving a centimetre or two away from the focus point can throw the whole picture out.