The limited supply of optical figure almost always on the list of least favorable points when consi

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Have had to wait a while, but independent of optical manufacturers have finally decided to approach this new mirrorless camera segment. Sigma makes in duplicate, with versions for Micro Four Thirds and NEX of its new 19 mm f1.8 and 30 mm f2.8. Mounted on a Sony NEX-7 and despite chandlers the demanding 24-megapixel sensor this camera chandlers uses, the Sigma 30 mm for Sony E mount has proven to combine perfectly good performance with an affordable price. chandlers Only autofocus chandlers performance and the presence of occasional aberration-very slightly-tarnished the good record of the fixed lens.
The limited supply of optical figure almost always on the list of least favorable points when considering some of the bodies of the Sony NEX family. And the company seems to have wanted to put more emphasis on the development of cameras in a park of objectives set broad enough to reach all audiences.
One possible solution is to open his mount to third party manufacturers. He did so long ago, and Sigma has been one of the first on this call with the new 19 mm f2.8 and 30 mm f2.8 EX DN two fixed targets and restrained price that marry perfectly with the philosophy these chambers.
And if the size of the camera body is down, nothing better to think about goals that fit with this idea of light equipment. Some optical in perfect harmony with the philosophy of "street photography" that is so fashionable lately: small, discrete, focal-to be fixed with a quality level that is assumed high.
Opening the box we find a padded well made-usual with Sigma-optics inevitably reminiscent of those 50 millimeters targets were paired with old film SLR.
In fact, has a similar size, with a diameter of 60.6 mm, a length chandlers of 38.6 mm and a weight of 135 grams. The filter thread is 46 millimeters, a measure common in the past. Another thing to note: unlike the also new Sigma 19mm f2.8, in this case the target does not incorporate a parasol.
The design is very austere. The focus ring is generous and ribbed, and there's the whole surface a single switch (not available stabilizer, for example) or a scale of depth of field. Of course, there is no mechanical chandlers ring to control the aperture.
In addition to the minimum focus distance (30 inches) and the name of the model, it does highlight the inscription "Made in Japan", which calls to mind quality construction (at least in theory, of course).
Mounted on the Sony NEX-7 that has been used for the occasion, this 30 mm does not clash or by size or by design. Perhaps the word that best defines your look is discretion. All this, together with a price of around 200 euros, seems to confirm that it meets at least about cheap and nice. Let's chandlers find the other be.
Just hold the lens in hand the disturbing rattle surprise inside due to movement of the focusing lens group. Not being a lens attached to the camera, these lenses are slightly displaced, which disappears when you put on the body mount. So not to worry.
The bayonet is metal and well made, and the inside of the lens is perfectly covered in matte black to prevent reflections. Inside are seven optical elements, with a pair of aspheric lenses between them are distributed into five groups.
The focus is internal, which does not change the length of the lens to focus or rotate chandlers the front, which is desirable for the use of polarizing filters. The diaphragm construction appreciates maintained and has seven blades leaving a rounded central hole.
This Sigma Autofocus with good light conditions is correct, although not particularly agile. If the scene is complicated, necessarily chandlers involves the light help to avoid erroneous confirmations doubts or even while the camera looks a focus point.
In any case, the behavior not seen in far too much of the standard zoom 18-55 mm f3.5-5.6 for Sony, so we put the division of responsibilities be assumed that the camera also deserves his share.
If we work with manual chandlers focus, it takes more than one full turn of the ring to go from end to end of its travel. The minimum distance is 30 inches, enough to dare portrait with some short, but little if they are to do macro photography of objects or small animals.
One point that perhaps should have cared more Sigma considering that Sony also has a fixed 30mm, in this case, it is macro. Although it is fair to remember that,