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Sony SAL30M28 30mm f/2.8 Lens for Alpha Digital SLR Cameras
|Price:||$198.00 & FREE Shipping. Details|
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- 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|
Get incredibly close to small subjects. Ideal for close-up and portrait shots, the 30mm f/2.8 Lens allows you to focus on close-up objects with 1:1 life-size imaging. In addition to a built-in Smooth Autofocus motor, this macro lens makes it easy to transform the everyday details of life into photographic works of art.
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.
Read about our customers' top-rated lenses and cameras on our review pages: Lenses, Digital SLR Cameras, Compact System Cameras
Top Customer Reviews
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. So if you are meaning to capture that little butterfly with this lens, better switch to manual focus or you'll scare it away with the noise.
3. Working distance too small:
Well, let's face it. This lens may be cheap, but the focal length of this lens isn't the most appropriate for macro work. To get full magnification with this lens, you'll need to get within an inch of the subject, which makes this lens unsuitable for photographing live subjects.
4. No focus limiter switch:
This lens has no focus limiter switch. Focus limiter switch on a macro lens lets you limit focus search to a part of the focusing range so the lens searches for focus within that range only. Many of the more superior macro lenses (including the Sony 50mm f/2.8 Macro) have this switch. The absence of this switch on this lens makes auto-focusing really difficult, as the lens travels from one inch to infinity in search of perfect focus - sometimes without success. Yet another reason I resort to manual focus while using this lens.
So is this lens for you?
The answer to that depends entirely on what kind of photographer you are and what you expect from this lens. If you are really passionate about macro photography, especially about capturing small insets, you are likely to want to upgrade to a quieter and faster macro lens that lets you stay within a convenient working distance of your subjects. In that case, I'd suggest you to go straight to one of the other lenses such as the Sony 50mm f/2.8 Macro Lens for Sony Alpha Digital SLR Camera or the Sigma 50mm f/2.8 EX DG Macro Lens for Canon SLR Cameras.
If you just want to experiment with macro photography and don't want to spend too much for it, you'd enjoy using this lens.
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.
I am so used to regular lens, with distance markings of 10ft to 50ft and so forth, looking a the lens i noticed that the distances were 5.1 inch 5.2 in on up to 12 in. that is just to cool, gonna be playing with this for a while.
Very light, easy to travel with
Very sharp, good color and contrast
Good bokeh when close up and stopped down past F5.6
feels sturdy for being plastic
focuses very quick on my A77 mkii except when going from a subject 5 inches away to 5 feet away.
very distracting bokeh from F2.8-F4