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Sony SAL30M28 30mm f/2.8 Lens for Alpha Digital SLR Cameras
|Price:||$173.00 & FREE Shipping. Details|
|You Save:||$26.99 (13%)|
- Focus System: Front focus SAM (Smooth AF motor)
- Minimum Focus Distance: 0.4ft (0.13m)
- Filter Diameter: 49mm
- Aperture (Max.): f/2.8
- Aperture (Min.): f/22
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|Aperture Control Design||Aperture controlled by camera|
|Compatible Mountings||Sony/Minolta Alpha|
|Focus Type||Micro-type ultrasonic|
|Item Dimensions||2.76 x 2.76 x 1.77 inches|
|Item Display Weight||0 pounds|
|Item Weight||0.33 pounds|
|Lens Type||Prime lens|
|Macro Focus Range||0.13 m|
|Maximum Aperture Range||F2.8|
|Maximum Focal Length||30 mm|
|Maximum Format Size||APS-C / DX|
|Minimum Focal Length||30 mm|
|Number of Diaphragm Blades||7|
|Number of Elements||6|
|Number of Groups||5|
|Photo Filter Thread Size||49 mm|
|Real Angle Of View||50 Degrees|
|Shipping Weight||0.7 pounds|
|Style Name||US Version|
From the Manufacturer
DT 30mm F2.8 SAM Macro Lens
With a macro lens, you gain entry to another dimension. Focus on close-up objects with 1:1 life-size imaging with the SAL35M28 macro lens with a built-in Smooth Autofocus motor. With a 35mm equivalent of 45mm, this macro lens makes it easy to transform the everyday details of life into photographic works of art, ideal for close-up and portrait shots.
When changing your aperture to defocus the background, the light sources appear blurred. This ‘bokeh’ effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. α lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result.
The distance encoder plays an integral part in ADI flash metering, which delivers high precision flash metering that is unaffected by the reflectance of subjects or backgrounds. The distance encoder is a lens component that directly detects the position of the focusing mechanism, and sends a signal to the CPU in order to measure distance to the subject. During flash photography, this data is very useful in calculating how much flash output is appropriate to the scene.
SAM (Smooth Autofocus Motor)
Rather than using the focus drive motor in the camera body, SAM lenses feature an autofocus motor built into to the lens itself that directly drives the focusing element group. Since the built-in motor directly rotates the focus mechanism, operation is significantly smoother and quieter than conventional coupled autofocus drive systems.
2009 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Sony, α and HDNA, are trademarks of Sony. All other trademarks are trademarks of their respective owners. Non-metric weights and measurements are approximate and may vary.
Style: US Version
Top Customer Reviews
The lens is also very light and compact. It is all-plastic construction. But it does not feel cheap; the lens is simply light due to construction materials. But the real issue is the image quality, which, as I say, is surprisingly good. This is a great entry lens to start experimenting with macro photography.
One minor drawback is that the mechanical focus mechanism is relatively noisy. When you get into focus hunting, which inevitably occurs with macro shots, you'll get some fairly loud focusing sounds from the device. But this is about the only drawback I've come up with so far, and its pretty minor, considering the plusses.
Great lens at a really reasonable price. Highly recommended.
Here is what I liked about this lens:
1. Price: this lens is really cheap for a true macro lens that provides 1:1 magnification. Most likely, this is the cheapest macro lens around.
2. Excellent results:
This lens is extremely sharp. Since I have owned mostly amateur grade lenses so far, I was amazed to see the sharpness on this lens. At 100% crop, the pictures taken with lens look tack-sharp.
3. Makes a great general purpose lens too:
Many first time buyers of macro lenses often believe that a macro lens is good for only macro work. Contrary to that belief, this lens makes a great general purpose prime lens too. On an APC-C sensor, this lens acts as a 45 mm lens, which is equivalent to a normal lens and is great for casual outdoor shots, portraits and even landscapes. Because of the wide f2.8 aperture, I have been able to capture much better portraits with this lens as compared to the 18-55 kit lens.
Here is what I did not like about this lens:
1. Poor low light focusing capability
I see this lens struggling to focus in low light conditions a lot more than any other lens I have used. The kit lens beats this lens hands-down in this department. So most of the times, if the light is not sufficient, I just switch to manual focus.
This lens is really noisy when focusing.Read more ›
As with the other budget primes, they have fairly basic build quality. Bang per buck though you can't really argue with the price v performance of this lens.
My quick summary so far of the lens
+ Offers a genuine 1:1 macro at a very good price level
+ Opitcally good performance, off the bat at f2.8 the lens is good in the central region and most of the frame, stopping down to f5.6 it's tack sharp
+ Filter ring does not rotate on focus
+ Excellent colour rendition, contrast and flare control
+ Small, compact and lightweight, the front element is quite tiny and the lack of hood isn't really a problem in my view
+ 7 rounded aperture blade does a nice job in most cases with rendering/bokeh of the out of focus areas. There is some outlining at f2.8 (it's not as smooth as the 35mm f1.8 SAM though)
+ 49mm filter thread is common for Sony/Minolta lenses (and fairly cheap to buy too)
+ AF was reasonable speed wise (for a macro lens - they are always slower), accuracy was good too with no signs of "focus shift" which some prime lenses can have issues with
- Some minor distortion, and there is some vignetting at f2.Read more ›
Most Recent Customer Reviews
I asked my brother who is an expert on Sony camera gear what kind of a lens I would need to get up super close to something and take a picture without having to back up enough to... Read morePublished 5 days ago by M. Albitz
Pleased, need to put it through its paces but so far so good. Arrived quickly in condition as described. First time buying second hand so was skeptical but pleased with outcome.Published 1 month ago by Jade
Does what it says. A lil loud, but stunningly good results.Published 3 months ago by Stuart B. Goodall
great addition to my DSLR.
Nice lens.lightweight, and good quality photos.
Useful macro lens, for those up close photos, and portraits.