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Here"s a brief look at the Sony 24-70mm F/2.8 SSM Carl Zeiss zoom lens. Scroll down for the main review.

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Contents of box.

Side shot drawn in.

Zoomed out lớn 70mm.


The Sony A700 & Sony A900 were used for this review. For full frame results, go to lớn the bottom of the page. For a better understanding of my reviews methods và terminology, go here.
See the comparison reviews were the Tamron 28-75mm F/2.8 out performed this lens in sharpness, for about a third of the price.
The (made in Japan) Sony 24-70mm F/2.8 Carl Zeiss is a professional grade lens (large, heavy & expensive) meant for people on the street, such as news photographers và Paparazzi. Amateurs with loads of cash will buy this lens khổng lồ look cool while on vacation. People who use a camera all day for work will buy this lens because it can stand up khổng lồ continuous hard use, has instant auto-focus override, and can perform well in dim lighting. So how well does it perform? Read on!
This wide to medium range zoom is large và heavy compared to lớn other lenses covering this length. It has a constant fast aperture of F/2.8 with an extending zoom, (see images above), unlike the internal zoom mechanism of the Minolta AF 28-70mm F/2.8 G, of which I"ll be making comparisons lớn throughout the review. The màu sắc and texture of the Sony Carl Zeiss lenses are slightly different than the Sony lenses and camera bodies, they have a duller, rougher type finish. You"ll never notice this unless you examine them side-by-side. The lens also has the standard Sony rubber ribbed grip areas that hold way too much dirt, and is hard to clean off, but that"s life with Sony lenses. There"s a focus distance window along with a single focus hold button, which can be changed to lớn DOF on select camera bodies, this button also serves as a MF/AF switch, see image above. The EXIF data matches up with the focal length marks, which come at 24mm, 35mm, 50mm, & 70mm. Increments are 5mm apart (after 30mm) in the data, but 65mm is missing, that"s the way it is. The lens is multi-coated with the magenta/green look typical for Sony lenses. Sony claims the use of two aspherical, & two "ED" glass elements in the construction of the lens. Don"t forget the T* (star) coating!!
Build unique is very good. It looks like it has some ABS around the barrel, và a metal barrel extension tube. The zoom is a little stiff in my opinion, but my copy has had very little use, so it may miễn phí up some in the future. No worries about zoom creep, which is good, as there is no zoom lock.
Auto-focusing is very fast, accurate and silent. Manual focusing takes just over 1/4 turn from Close-in lớn infinity, with no back slop. All the Sony SSM units (so far) have an over-drive manual focusing system, that is, if you turn the focusing ring a certain amount, the distance numbers in the window will turn a lesser amount. This allows more precise manual focusing.
Lens flare/ghosting. Fair. Check out the samples below. If the sun is near the image, you"ll need to lớn block it with your hand, If the sun is in the image, you"ll see some heavy ghosting. Pointing it directly at the sun looks ok, và much better than the Minolta AF 28-70mm F/2.8 G lens. If you lượt thích taking pictures with the sun in the image, use the Sony 18-70mm kit lens, which has the best control of flare and ghosting of any zoom I"ve tested.
Color fringing. Very good control, và among the best of all the fast mid-zooms I"ve tested. I see a tiny amount in extreme conditions, see the 70mm center crops. I see little to lớn no color fringing along the sides.
Bokeh. Good. It looks smooth at F/2.8, wide angle, then nearly as good at 70mm. I think the bokeh on this lens is the best out of all the mid-zooms I"ve tested, such as the Minolta AF 28-70mm F/2.8 G, và the Konica Minolta AF 28-75mm F/2.8.
Color. Similar to other Sony lenses.

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Coma. None on an APS-C camera.
Close-up filter. N/A.
Filter size is 77mm. This form size is becoming more popular every year for Sony. They also use it on the 16-35mm F/2.8, 70-400mm G, 70-200mm F/2.8 G, CZ 135mm F/1.8, and the DT 11-18mm F/4.5-5.6.
Distortion. See below. Mild to lớn moderate barrel distortion at 24mm. Distortion is flat at 30mm-40mm, then it turns to mild/moderate pincushion. Fairly good control here.
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