Sony Distagon T* 24mm F2 SSM review
Like Sony's other Carl Zeiss-branded lenses, the 24mm F2 is a beautifully-constructed object that exudes quality, with its utilitarian lines, solid metal body and super-smooth focus ring. The side of the barrel plays host to a large circular AF/MF switch, plus Sony's familiar Focus Hold button, which can also be customized for such functions as depth of field preview and 'Intelligent Preview' depending on the camera body used. The lens focuses by moving the rear group internally, so its length (and therefore balance on the camera) never changes.
One notable omission on a lens at this price and quality level is the lack of dust- and water-sealing (both Canon and Nikon advertise their 24mm F1.4 designs as sealed).
Compared to Planar T* 85mm F1.4 and Vario-Sonnar T* 16-35mm F2.8 SSM lenses
This comparison gives an idea of the 24mm F2's size in comparison to two of Sony's other Carl Zeiss lenses - the 85mm F1.4 on the left, and the 16-35mm F2.8 SSM on the right. Lenses from almost all manufacturers seem to have been growing in size recently, and the 24mm doesn't buck this trend; it's very similar in size to the 85mm, being just a fraction longer but slightly narrower in diameter. However it still offers a distinctly more compact alternative to the wide zoom.
Compared to Canon EF 24mm F1.4L II USM
To get a second perspective on the Distagon's dimensions, here it is alongside one of its main competitors, the Canon EF 24mm F1.4L II USM (which is a little larger than Nikon's AF-S Nikkor 24mm F1.4G ED). The Sony is a bit smaller than the Canon, although perhaps not as much as you might hope given the latter's whole stop light gathering advantage. Of course it's worth remembering that the Sony will benefit from the Super SteadyShot stabilization built-in to Alpha SLR bodies, which in principle makes it hand-holdable in extremely low light (just as long as you don't have to worry about motion blur from subject movement).
On the camera
The 24mm F2 employs a ring-type ultrasonic SuperSonic Wave Motor for autofocus, and as expected it's fast, near silent and extremely decisive. The Direct Manual Focus feature means its also possible to manually tweak the focus position at any time, even when the camera and lens are both set to autofocus.
Lens body elements
The lens allows apertures from F2 to F22 to be selected.
Oct 20, 2010
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