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Sony 50mm f/1.8 SAM DT Lens for Sony Alpha Digital SLR Cameras - Fixed
|Price:||$168.00 & FREE Shipping. Details|
- Enter your model number to make sure this fits.
- Lens not zoomable
- Small size, light weight portrait lens
- 35mm focal length equivelant on APS-C; 75mm
- Smooth and silent AF operation with built-in motor (SAM)
- Closest focus distance: 1.1ft (0.34m); Maximum magnification: 0.2x
- Please note: DT lenses are not recommended for use with the DSLR-A900
- Mount : Sony A-mount
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|Aperture Control Design||Aperture controlled by camera|
|Compatible Mountings||Sony/Minolta Alpha|
|Item Dimensions||2.76 x 2.76 x 1.77 inches|
|Item Display Weight||0 pounds|
|Item Weight||0.37 pounds|
|Lens Type||Prime lens|
|Macro Focus Range||0.34 m|
|Material Type||Plastic barrel, plastic mount|
|Maximum Aperture Range||F1.8|
|Maximum Focal Length||50 mm|
|Maximum Format Size||APS-C / DX|
|Minimum Focal Length||50 mm|
|Number of Diaphragm Blades||7|
|Number of Elements||6|
|Number of Groups||5|
|Photo Filter Thread Size||49 mm|
|Shipping Weight||0.55 pounds|
Make the move from the standard zoom and explore the world of portrait photography with the SAL-50F18 lens for your Alpha DSLR camera. It boasts a large aperture which makes it easy to get great-looking portrait shots. The SAL50F18 is one of the first fixed focal length lenses in the DT series, which is designed exclusively for Alpha DSLRs that use an APS-C type sensor. Please note: DT lenses are not recommended for use with the DSLR-A900.
* LENS POUCH.
* LENS PEN.
* LENS CAP KEEPER.
* CLEANING CLOTH.
* CLEANING KIT.
From the Manufacturer
DT 50mm F1.8 SAM Prime Lens
Step-up from the std. zoom kit lens and explore the world of portrait photography with the SAL50F18 lens. It has a large aperture which makes it easy to get those great portrait shots. The SAL50F18 is one of the first fixed focal length lenses in the DT series, which is designed exclusively for α DSLRs that use an APS-C type sensor.
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
1. Sharp and great colors! I've been using my kit lens for a while, and I wanted a lens for portraits. The quality of the images make it my preferred lens, and I only resort to my kit zoom lenses during events where I am unable to get close.
2. Light. Agreed that it is mostly plastic, but it is sturdy and looks good. I do not regret this purchase at all due to build quality.
3. Fast! Indoor photos can be shot by hand with natural light due to the large f1.8 aperture. Built in steady shot in every Sony Alpha makes this even better. Shutter speed indoors using just natural light (no flash!) shooting away from the windows can range between 1/8 to 1/120 of a second from ISO 100 to 400. Moving to higher ISO values (which my zooms would have done in order to get similar shots) would probably match the speed, but would have introduced much more noise.
4. Smooth bokeh. None of this hexagonal stuff you see in other lenses.
Things I don't like.
1. AF/MF switch. I have one on my camera, I don't need one on my lens. In order to attain full manual focus I need to swith both the lens and body.
2. 49mm filters. Why not the usual 55mm?
3. Not full frame. If you don't own an A900, and don't ever plan of upgrading to one - this doesn't matter to you.
I would recommend this lens to EVERYONE! It is cheap, and the quality of the images are superb! Furthermore, the fixed focal length forces a photographer to be more aware of how he/she is composing photographs. The lazy method of zooming in and out to fit the subject is no longer applicable. You have to move, and take into consideration objects around the subject. So in the end - you will be a better photographer - or a frustrated one due to the lack of zoom.
For newbie photographers -- and I'm sure I still fall in this category -- a Prime (or fixed focal length lens) is different primarily in only one appreciable way: it does not zoom. You're fixed forever at the 50mm length. This means that you have to be a good distance away from people when shooting (like across a small room), unless you're looking for a close up. I had several misconceptions about prime lenses when I bought this (it's my first). You still have focus, both auto- and manual-focus. I know that sounds dumb to anyone who's ever dealt with these, but I was concerned that there would be a narrow field of focus that I would be limited to. Not the case. And as a general review of Prime lenses, I would totally buy another. In fact, I think I may buy a prime macro lens at some point.
If you're going to have the aperture at f-1.8 during any appreciable sunlight, you'll need to crank up the shutter speed (assuming you're going manual) almost to the max! I can't tell you how much I love this lens though. It stays on my camera almost exclusively.
As far as the design of the lens, it's very tiny. It looks almost pathetic sitting on the front of your camera -- I have an A65. But a good photographer knows, it's not the size that matters. The build is exactly like the ones that probably came with your camera. It's a hard plastic. No biggie for me, but some people don't like the feel. Long story short, I would highly recommend this for its price and performance. It's a great lens to get for shooting lower light situations and for getting a nice bokeh effect.
Most Recent Customer Reviews
1st used lens I was worried about the quality.
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