Sony alpha nex

     
Basic Specifications Full mã sản phẩm name:Resolution:Sensor size:Kit Lens:Viewfinder:Native ISO: Extended ISO: Shutter:Max Aperture:Dimensions:Weight:Availability:Manufacturer:Full specs:
Sony Alpha NEX-5T
16.10 Megapixels
APS-C(23.5mm x 15.6mm)
3.13x zoom16-50mm(24-75mm eq.)
No / LCD
100 - 25,600
100 - 25,600
1/4000 - 30 sec
3.5 (kit lens)
4.4 x 2.3 x 1.5 in.(111 x 59 x 39 mm)
13.8 oz(392 g)includes batteries, kit lens
09/2013
Sony
Sony NEX-5T specifications

16.10MegapixelsSony EAPS-Csize sensor
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Sony NEX-5T đánh giá -- First Impressions


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In late 2012, Sony brought its NEX mirrorless camera series into the hybrid autofocus age, with the debut of the NEX-5R. Just ten months later, that camera gets a more modest refresh, with the arrival of the Sony NEX-5T.

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The NEX-5T will be of interest to lớn photographers using certain smart devices -- be they phones or tablets -- running the Android, Blackberry, Symbian & Windows Phone operating systems. That"s because it now includes a short-range Near Field Communications radio, used to simplify the process of creating a longer-range, high-speed Wi-Fi connection with compatible devices. To lớn pair your device without any intervention, you simply enable NFC (or leave it enabled at all times; nguồn consumption is very low thanks to lớn its short range), and then hold the smart device next to the NFC hình ảnh on the camera body.


Photographers who have a preference for táo bị cắn dở gear will, sadly, not get lớn join in. They"ll have to pair the old-fashioned way, which will take a little more time, but will only really be an inconvenience if you regularly pair new devices. This is all because apple has so far resisted adding NFC khổng lồ its products. It shows no signs of backing down, despite a profusion of NFC-compatible gadget launches over the last year.

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Beyond the new NFC radio, there"s only one other change of note: the NEX-5T ships with a different kit lens in its product bundle. Where the NEX-5R came with an E 18-55mm F3.5-5.6 OSS lens (the SEL1855), the NEX-5T will include the E 16-50mm F3.5-5.6 PZ OSS lens (model number SELP1650). The new optic is still stabilized, but performed better in testing at our sister site, SLRgear.com, & is significantly lighter & smaller thanks lớn a retractable design, so we see this as a far better pairing. Be aware, though, that you"ll get just a cảm biến less telephoto reach, in exchange for better wide-angle coverage.

Available from early September 2013, the Sony Alpha NEX-5T carries a danh sách price of US$700 including the 16-50mm kit lens. That"s just US$50 more than danh mục pricing of its predecessor, a pretty good deal considering the better lens & added NFC radio. Body-only price is about US$550.

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Let"s take a tour of the new model.

Sony NEX-5T reviews -- Walkaround

by Mike Tomkins

A trip around the Sony NEX-5T is a very familiar affair indeed. Short of the silk-screened mã sản phẩm number on the top deck & one biểu tượng logo elsewhere -- we"ll come back lớn that in a moment -- there is literally no way to tell the new body toàn thân apart from that of the earlier NEX-5R.

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Seen from the front, not only is the NEX-5T identical lớn the NEX-5R, but the basic layout is little-changed from the earlier NEX-5N. The lens mount dominates, extending slightly beyond top and bottom of the camera body, and in the process emphasizing how Sony has pared every possible fraction of an inch from the design. Below & to the right of the lens (as seen from the rear), the lens release button peeks out. An oval, infrared remote receiver hides in the trim at the đứng top of the handgrip, & alongside it sits an autofocus assist lamp.


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Move to the top, and you can finally identify the camera -- but only thanks lớn the mã sản phẩm number. (And only when looking from behind the lens, since the branding sits along a bevel between the top và rear decks.) Otherwise, nothing here has changed: the Smart Accessory Terminal 2 sits directly above the lens mount, straddled by two ports for the stereo microphone.

Behind these are two rubber stoppers against which the LCD presses when flipped all the way up for viewing from in front of the camera. When the LCD is fully raised, the Smart Accessory Terminal 2 can"t be accessed, incidentally. All vị trí cao nhất deck controls -- the Shutter, Function, Playback & Movie record buttons, power nguồn lever, and one of the two control dials -- sit in a cluster at the rightmost kết thúc of the body.

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From the rear, you can again see the mã sản phẩm number, but if you cover that, there"s nothing else lớn tip you off lớn which camera you"re looking at. The articulated LCD dominates most of the NEX-5T"s rear, & the standard NEX-series button layout -- three soft buttons & a combined Four-way controller / control dial -- are grouped khổng lồ its right. There"s also a small thumb grip at đứng đầu right.

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The left over of the NEX-5T toàn thân is unchanged. On the left are a Wi-Fi logo, and an access panel covering the HDMI & USB ports.

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The right side of the toàn thân is home to the only other minor difference: a small NFC hình ảnh sits in the center of the handgrip. (Unfortunately, we don"t have a great image of it, but you can just see it peeking around the edge in the press image above.) Hold your Near Field Communications-compatible phone or tablet near this logo, & it should automatically pair with the camera"s Wi-Fi, with no intervention beyond enabling the smart device"s NFC radio, if necessary.

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And finally, we come to lớn the base of the camera, which is again unchanged. Beneath the handgrip is a door concealing the combined battery / flash thẻ compartment. A small cutout at the rear of this door provides ingress for a cable that attaches the optional AC adapter kit khổng lồ a dummy battery in the camera body. A metal tripod socket sits neatly on the central axis of the lens, nicely positioned for panorama shooting. In between is a three-hole grille for the camera"s speaker.

Sony NEX-5T đánh giá -- Hands-on with a Pre-Production Camera

by Dave Etchells


When it comes to the in-hand experience, there"s not a lot lớn distinguish the new NEX-5T from the previous NEX-5R. As noted above, about the only difference between the NEX-5T & the earlier 5R is that the new mã sản phẩm sports improved Wi-Fi capability, using NFC (near-field communications) giải pháp công nghệ to automate the pairing of the camera with your smart device. All that"s required khổng lồ set up the connection with a smart device running Sony"s ứng dụng is khổng lồ touch the two devices lớn each other for a few seconds. The ứng dụng will recognize the device, connect khổng lồ it, & then let you exercise a surprising amount of control over the camera, và seamlessly tải về images from it for sharing on a variety of social media, or just storage on your smart device.

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The fact that the user interface and toàn thân design is so similar khổng lồ the 5R is no shortcoming: The NEX-5 series has from the outset been an extremely high-functioning line of cameras, và the NEX-5T follows soundly in those footsteps. While the initial NEX-5 had some frustrating UI rough spots, they"ve been almost entirely smoothed out in the intervening time, và the current interface is pretty pleasant khổng lồ use, while being largely understandable lớn non-geeks.

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Our final verdict will of course await our lab tests of a production sample, but if the NEX-5T follows its predecessors" examples, it"ll be a fine camera, now with the added utility of NFC-enabled WiFi for smart device connectivity.

Sony NEX-5T reviews -- Technical Info

by Mike Tomkins


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Sensor. At the heart of the Sony NEX-5T sits the same Exmor APS HD CMOS image sensor seen previously in the NEX-5R. Resolution is about 16.1 megapixels effective, from a total of 16.7 megapixels. The APS-C sized sensor has an RGBG màu sắc filter array, và a 1.5x focal length crop.

Performance. Data from the NEX-5T"s image sensor is handled by Sony"s proprietary BIONZ-branded image processor. Like the NEX-5R before it, the NEX-5T defaults to lớn a rather sedate three frames per second for burst shooting. In the speed Priority Continuous mode, though, you"ll manage a much swifter 10 fps.

Focusing. How"s that tốc độ achieved? It comes thanks lớn on-chip phase detection autofocus. The Sony NEX-5T includes a Fast Hybrid-branded autofocus system that uses on-chip PDAF khổng lồ get in the ballpark, và follows up with contrast detection AF for fine tuning. In speed Priority mode, the latter step is skipped, và only the phase detection AF operates. The result is a lot faster shooting, but an increased likelihood of focus errors.

Sony"s on-chip PDAF implementation features a generous 99 autofocus points in a cluster at the center of the image frame. Contrast detection, meanwhile, works with 25 areas. Fast Hybrid AF requires a compatible lens. If not supported, the NEX-5T uses contrast detection alone.

You can, of course, still focus manually. Both focus-peaking and magnifier functions are available.

Sensitivity. The NEX-5T"s sensor and processor pairing allow a sensitivity range of ISO 100 to lớn 25,600 equivalents. In movie mode, the upper limit is reduced lớn ISO 6400 equivalent. Auto ISO ranges to lớn ISO 3200 max. For both stills và movies.


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Lens mount. lượt thích other NEX-series cameras, the NEX-5T"s lens mount accepts only Sony E-mount lenses directly, but can be used with an unusually wide range of non-native lenses via mount adapters provided by Sony và third parties.

Currently, Sony offers 13 E-mount lenses, with two more soon khổng lồ arrive. All but two of these -- the E 16mm f/2.8 and E 20mm f/2.8 primes -- support the Hybrid AF system. You can of course still use these remaining two lenses, but the NEX-5T will fall back khổng lồ contrast detection autofocus only.

Viewfinder. like the NEX-5R before it, the NEX-5T doesn"t include a built-in viewfinder, but can accept an optional electronic viewfinder accessory that mounts in the Smart Terminal 2 on the vị trí cao nhất of the camera body.

The optional FDA-EV1S electronic viewfinder is based around a high-resolution Organic LED panel, & has a 90-degree vertical tilt function, 100% coverage, and a very high resolution of 2359k dots. It also offers a -4.0 lớn +1.0m-1 diopter correction function. List pricing for this accessory is US$350.


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LCD. The Sony NEX-5T features an Xtra Fine-branded màn hình lcd with a three-inch diagonal & VGA resolution (640 x 480 pixels; 921,600 dots). There"s both an automatic/manual five-step brightness control, and a Sunny Weather mode for better outdoor visibility.

Touch control. Sony has retained the cảm ứng panel from the NEX-5R, which allows you to bởi things lượt thích trip the shutter release from the cảm biến panel, select an object for autofocus tracking, và control background defocus with a slider control.


Articulation. Just like that of the NEX-5R, the Sony NEX-5T"s màn hình lcd features an articulation mechanism. This can tilt 180 degrees upwards for self-portrait viewing, although in this position it blocks the Smart Accessory Terminal. It also tilts downward by around 50 degrees.

Exposure. Shutter speeds on offer in the Sony Alpha NEX-5T range from 1/4000 to 30 seconds, plus bulb. The camera uses an electronically-controlled, vertical traverse focal plane shutter, as well as an optional electronic first curtain shutter.

Exposures are metered using the image sensor, with a 1200-zone evaluative metering system. Metering modes include multi-segment, center-weighted, và spot.


Flash. The Sony NEX-5T doesn"t feature a built-in flash. Instead it comes bundled with a small HVL-F7S fold-down flash. This và other compatible strobes mount in the proprietary Smart Accessory Terminal 2 connector on the đứng top deck. When mounted, the flash obviously prevents raising the LCD panel for self-portraits.

The bundled flash has a guide number of 23 feet (7m) at ISO 100. Coverage is 16mm, & the flash recycles in four seconds.

Flash modes include Auto, Fill-flash, Slow-sync, & Rear-sync. A red-eye reduction function is also available, enabled or disabled through the setup menu. X-sync is at 1/160 second, unchanged from that in earlier Sony NEX-series models.

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Video. The Sony Alpha NEX-5T can record Full HD (1920 x 1080 pixel; 1080p/1080i) movies at a rate of either 60 frames per second, 24 frames per second, or 60 interlaced fields per second. (In some markets, the 60p/60i rates are replaced with 50p/50i rates, & the 24p rate with 25p.) You can also opt for lower-res 1440 x 1080 and 640 x 480 movies, with a fixed rate of 30p (25p on overseas models).


At the maximum resolution, movies are saved using AVCHD version 2.0 (MPEG-4 AVC / H.264) compression with AC-3 stereo Dolby Digital audio. At lower resolutions, movies are saved with MP4 compression & MPEG-4 AAC-LC stereo audio.

Wireless connectivity. like its predecessor, the Sony NEX-5T includes built-in Wi-Fi connectivity. However, thiết đặt of a Wi-Fi connection is now much easier -- at least, so long as you don"t use an táo smart device. That"s thanks to Near Field Communications technology, which establishes a Wi-Fi connection for you automatically when you simply hold an NFC-compatible smart device such as a phone or tablet next lớn the NFC logo on the NEX-5T body.

Unfortunately, táo bị cắn dở is still resisting adoption of NFC, and so many smart device owners will find they still need khổng lồ establish a connection manually. Hopefully that will change, because NFC couldn"t be much simpler or easier khổng lồ use. On the plus side, many Android, Blackberry, Symbian và Windows Phone devices already tư vấn NFC.


Wired connectivity. As well as its aforementioned Smart Accessory Terminal 2 & wireless connectivity, the Sony NEX-5T includes a Type-C Mini HDMI port for high-def viewing on a TV, and a Micro USB Type B port for USB 2.0 High speed data connectivity. The latter allows charging, letting you carry one less charger if you"ve got other USB-charging devices.

Note that the USB port is not Sony"s multi-terminal, & so isn"t compatible with the RM-VPR1 wired remote control. However, there"s an infrared receiver in the handgrip, compatible with the RMT-DSLR1/2 remote controls.

Storage. Images và movies are stored on Secure Digital cards, including the higher-capacity SDHC & SDXC types. You can alternatively use Sony"s proprietary Memory Stick Duo cards in the same slot, should you prefer.

Power. The Sony NEX-5T draws its nguồn from a proprietary InfoLithium NP-FW50 lithium-ion rechargeable battery pack. Sony rates the camera as good for 330 shots on a charge, to lớn CIPA testing standards.

Sony NEX-5T reviews -- Image chất lượng Comparison

Below are crops comparing the Sony NEX-5T with the Sony NEX-6, Canon SL1, Nikon D3200, Olympus E-PL5, and Panasonic G6.

NOTE: These images are best chất lượng JPEGs straight out of the camera, at mặc định settings including noise reduction và using the camera"s actual base ISO (not extended ISO settings). All cameras in this comparison were shot with our very sharp reference lenses.

Sony NEX-5T versus Sony NEX-6 at Base ISO

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Sony NEX-5T at ISO 100
Sony NEX-6 at ISO 100

The comparison between the NEX-5T và its big brother the NEX-6 is very similar here at base ISO. The NEX-6 perhaps resolves fine detail in the mosaic tile và red swatch a tiny bit better, but the NEX-5T performs slightly better in the pink fabric, but we"re really splitting hairs. Performance here is practically identical, as you"d expect.

Sony NEX-5T versus Canon SL1 at Base ISO

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Sony NEX-5T at ISO 100
Canon SL1 at ISO 100

Again, another similar comparison. The NEX-5T and SL1 are neck và neck in the first two comparison, but the biggest difference is seen in the fabric crop. The Sony does a little better with both the red and pink fabrics, though the Canon produces a more accurate pink color.

Sony NEX-5T versus Nikon D3200 at Base ISO

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Sony NEX-5T at ISO 100
Nikon D3200 at ISO 100

The 24-megapixel D3200 easily out-resolves the 16-megapixel NEX-5T, though the Sony"s images are crisper due lớn more aggressive mặc định sharpening và somewhat higher contrast.

Sony NEX-5T versus Olympus E-PL5 at Base ISO

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Sony NEX-5T at ISO 100
Olympus E-PL5 at ISO 200

It"s a mixed comparison here, as both cameras bởi vì well in different areas. The bottle crops look similar, but noise is a little higher from the E-PL5 as can be seen in the shadows. Both are pretty evenly matched in the mosaic though the Olympus looks cleaner this time, but the Sony does better with the red and pink fabrics.

Sony NEX-5T versus Panasonic G6 at Base ISO

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Sony NEX-5T at ISO 100
Panasonic G6 at ISO 160

The first comparison here looks pretty similar in terms of the sharpness và detail. We give the Panasonic the edge in the mosaic crop, but the NEX-5T produces just a bit more contrast in the fabrics compared khổng lồ the G6.

 

Most digital SLRs & CSCs will produce an excellent ISO 100 shot, so we like to push them and see what they can bởi vì compared to other cameras at ISO 1600, 3200, & 6400. Recent advances in sensor giải pháp công nghệ have made ISO 1600 look a lot more lượt thích ISO 100, but there are still cameras whose unique starts khổng lồ fall apart at this setting. We also choose 1600 because we lượt thích to be able khổng lồ shoot at least at this level when indoors và at night.

Sony NEX-5T versus Sony NEX-6 at ISO 1600

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Sony NEX-5T at ISO 1600
Sony NEX-6 at ISO 1600

Just lượt thích we saw at ISO 100, here at 1600, the two Sony cameras are practically in a dead heat. Noise & detail look nearly identical, though the 5T does slightly better with the pink fabric yet again.

Sony NEX-5T versus Canon SL1 at ISO 1600

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Sony NEX-5T at ISO 1600
Canon SL1 at ISO 1600

The noise levels here in the shadows of the first crop comparison look similar, but after that the NEX-5T takes the lead with crisper detail in the mosaic crops. Both cameras struggle with the red and pink fabrics, though the Sony does noticeably better here.

Sony NEX-5T versus Nikon D3200 at ISO 1600

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Sony NEX-5T at ISO 1600
Nikon D3200 at ISO 1600

While the D3200 continues to out-resolve the NEX-5T, the Sony"s more aggressive processing produces cleaner, clearer images compared lớn Nikon"s more conservative approach.

Sony NEX-5T versus Olympus E-PL5 at ISO 1600

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Sony NEX-5T at ISO 1600
Olympus E-PL5 at ISO 1600

Overall, the NEX-5T comes out on top here in this comparison with fewer noise reduction artifacts, which you can see in the E-PL5 bottle crop. The NEX-5T also does slightly better in the mosaic, whereas the E-PL5"s noise reduction creates a slightly mottled look. The NEX-5T also does just a bit better with the red leaf pattern, but the E-PL5 manages lớn show hints of threads in the pink fabric.

Sony NEX-5T versus Panasonic G6 at ISO 1600

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Sony NEX-5T at ISO 1600
Panasonic G6 at ISO 1600

A tough comparison. While both show fairly low noise in the first crop comparison, the NEX-5T shows crisper detail in the mosaic crop, but the pink fabric looks slightly better in the G6 crop.

Today"s ISO 3200 is yesterday"s ISO 1600 (well, almost), so below are the same crops at ISO 3200.

Sony NEX-5T versus Sony NEX-6 at ISO 3200

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Sony NEX-5T at ISO 3200
Sony NEX-6 at ISO 3200

Again, lượt thích the previous comparisons of these two cameras, they look quite similar here at ISO 3200. There"s noticeable noise in the shadows in the first crops, but there"s still a lot of fine detail, with the mosaic pattern still visible. The red fabric is equally mushy and the pink fabric has taken on a splotchy look.

Sony NEX-5T versus Canon SL1 at ISO 3200

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Sony NEX-5T at ISO 3200
Canon SL1 at ISO 3200

The first two crop comparisons between these two cameras look roughly similar in terms of noise & fine detail (though the Sony looks just a hair better in the mosaic). The biggest difference is with the fabric, with which the SL1 really struggles -- there"s almost no leaf pattern in the red fabric. While the NEX-5T is not great with the red fabric either, it at least shows more of a semblance to the leaf pattern.

Sony NEX-5T versus Nikon D3200 at ISO 3200

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Sony NEX-5T at ISO 3200
Nikon D3200 at ISO 3200

The Sony is the clear winner here, with much less luminance noise & crisper detail overall. The Nikon displays some obvious chroma noise in the bottle and mosaic crops, and both cameras struggle with the red fabric.

Sony NEX-5T versus Olympus E-PL5 at ISO 3200

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Sony NEX-5T at ISO 3200
Olympus E-PL5 at ISO 3200

The E-PL5 here produces a clearer image overall, but the NEX-5T is better able to reproduce some khung of leaf pattern in the red fabric. The E-PL5"s processing creates a slightly peppered effect in the mosaic, whereas the NEX-5T simply lacks crisp detail.

Sony NEX-5T versus Panasonic G6 at ISO 3200

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Sony NEX-5T at ISO 3200
Panasonic G6 at ISO 3200

The Panasonic displays higher luma and chroma noise, and when combined with sharpening artifacts, its images start to take on a stippled effect. While the winner for the bottle & mosaic crops goes lớn the NEX-5T with cleaner, crisper detail, both cameras have trouble with the red-leaf fabric.

Detail: Sony NEX-5T vs. Sony NEX-6, Canon SL1, Nikon D3200, Olympus E-PL5, and Panasonic G6

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SonyNEX-5TISO 100ISO 3200ISO 6400SonyNEX-6ISO 100ISO 3200ISO 6400CanonSL1ISO 100ISO 3200ISO 6400NikonD3200ISO 100ISO 3200ISO 6400OlympusE-PL5ISO 200ISO 3200ISO 6400

PanasonicG6ISO 160ISO 3200ISO 6400

Detail comparison. The Sony NEX-5T does a good job with fine, high contrast detail, but the winner at base ISO is clearly the Olympus E-PL5, with the G6 & SL1 coming in as runners-up. The D3200 shows excellent detail, but contrast và sharpness are a little low compared lớn the others, while both Sonys show some false colors within fine lines of the lettering. At the higher ISOs, the NEX-5T is a strong competitor, with lots of fine detail and good contrast compared to lớn many of the other cameras; particularly holding up nicely against the E-PL5. The D3200, and to a lesser extent the SL1, really show a drop in fine detail & contrast at ISO 6400 compared to lớn the others. Overall, there"s not a lot of difference between the NEX-5T & the NEX-6, apart from minor differences in contrast & exposure.

 

Sony NEX-5T review -- Print Quality

Excellent 24 x 36 inch prints at ISOs 100 and 200; a nice 13 x 19 at ISO 1600; và a good 4 x 6 at ISO 12,800.

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ISOs 100 và 200 produce excellent 24 x 36 inch prints with rich, accurate colors & sharp detail. Also capable of very nice wall display prints up lớn 36 x 48 inches.

ISO 400 prints are quite good at đôi mươi x 30 inches, again showing nice detail with the exception of typical softening in our difficult red swatch. Wall display prints are possible here up khổng lồ 30 x 40 inches.

ISO 800 images look good at 16 x 20, which is a relatively large size for the ISO. There is minor noise apparent in flatter areas of our target, but it still makes a nice print.

ISO 1600 prints are good at 13 x 19 inches. At 16 x 20 there is too much noise in shadowy areas to make our "good" grade, but this kích cỡ may work for less critical applications.

ISO 3200 shows a sharp decline in image quality at least at mặc định JPEG noise reduction settings, and warrants a print form size reduction to lớn 8 x 10 inches, as anything larger is simply too noisy.

ISO 6400 yields a fairly good 5 x 7, with some apparent noise but not too bad.

ISO 12,800 makes a nice 4 x 6 inch print, which is not bad since this is still considered a "high" ISO.

ISO 25,600 does not yield good prints và is best avoided.

The Sony NEX-5T does a nice job in the print quality department, yielding sizes we would expect from a 16MP APS-C sensor, and is exceptional at lower ISOs. We were surprised to find however that at default in-camera JPEG noise reduction settings, this camera didn"t perform quite as well as the last camera in this line that we tested, the NEX-5N from 2011. From ISO 1600 to lớn ISO 12,800 the NEX-5T scored one print kích cỡ smaller at each successive ISO setting than did the NEX-5N. Keep in mind that these results will certainly vary for those of you shooting in RAW format and applying your own noise reduction & sharpening in post-processing.


Chuyên mục: Tin Tức