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Hãy viết đoạn tóm tắt về nội dung bằng tiếng việt kích thích người mua: Nikon Z 30 review | Tom’s Guide

has a comparatively massive 3,975 phase-detection points on its sensor. Even so, the Z 30 proved quick and consistently accurate for autofocus in our tests. Autofocus accuracy is particularly critical in extreme close-up shooting, due to the relatively tight depth of field, so we tested it by shooting some flowers at very short range.

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There are numerous AF-area options, ranging from single-point to covering almost the full image frame. The larger areas have options for automatic subject recognition, people-recognition and animal-recognition. The people and animal autofocus modes do a good job of recognizing humans and a variety of animals, picking them out in a scene and literally focusing in on their heads and eyes as they come into view.

To test animal eye-tracking AF, I took some shots of my dog in the garden. Eye-recognition locked into place very quickly, with the option of switching between his eye using the multi-way pad on the rear of the camera. Meanwhile, the Continuous autofocus mode did well to track him as he was moving around.

Nikon Z 30 review: Image performance

The Nikon Z 30 is very similar to the Z 50 and Z fc when it comes to image performance, as all three cameras have essentially the same 20.9 megapixel APS-C format image sensor and EXPEED 6 image processor. 

The Z 30 has a sporty maximum drive rate for stills of up to 11fps (frames per second), complete with continuous autofocus and metering between successive shots. Buffer capacity is sufficient for 100 shots in most JPEG quality modes, dropping to 82 shots for the largest sized JPEGs at the top quality mode. Switch to RAW quality and the buffer will keep you going for around 44 shots in 12-bit color depth or 36 shots in 14-bit mode, the latter equating to just over 3 seconds of continuous shooting at 11fps.

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Image quality for stills tends to be very natural but pleasantly punchy. A number of different treatments or ‘Picture Controls’ are available from the i menu, including the likes of standard, vivid, landscape, portrait, monochrome and many more, including filter effects like morning, dream, denim and other esoteric options. To cover most eventualities, the Auto picture control option works very well, in which the camera ‘intelligently’ analyzes the scene and selects the most appropriate picture control automatically. If you shoot in RAW quality mode, you can swap between picture control options at the editing stage, either in-camera via the Retouch menu or on a computer using Nikon’s free NX Studio app or Adobe Lightroom. To test image quality, we shot some landscape and vivid scenes using the Z 30’s relevant picture control modes.

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One thing I’ve long been impressed with in Nikon cameras is Active D-lighting. For high-contrast scenes, this tackles the problem of highlights washing out and dark shadow areas losing detail. To be fair, most other camera manufacturers have similar options, but Active D-Lighting always works really well for me. Options include various strengths which you can set manually, as well as an Auto setting that, like Picture Control, is based on live analysis of the actual scene. To test it out, I shot a series of shots of high-contrast scenes with very bright highlights and deep, dark shadows.

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A potential pitfall of APS-C format cameras compared with full-frame bodies is that, for any given megapixel count, the photosites on the image sensor that correspond with individual pixels are relatively small. They therefore have less light-gathering potential so high-ISO image noise is typically more noticeable. The modest 20.9 megapixel count of the Z 30 works in your favor for low-light shooting.

Noise is well controlled even at ISO 16,000, but pushing to ISO 25,600 and higher results in destructive noise and smoothing.

The standard sensitivity range is pretty generous at ISO 100-51,200, expandable to 204,800. We found that images were pretty clean and retained a good level of fine detail up to around ISO 6400. Noise is still quite well controlled at ISO 16,000, but becomes noticeable from ISO 25,600 upwards, with a progressive loss of fine detail due to smoothing from High-ISO noise reduction. 

Another challenge for crop-sensor vs full-frame cameras is gaining a tight depth of field for blurring the background. One of the lenses I used for testing the Z 30 was the Z DX 24mm f/1.7 lens (£289/$277). The relatively wide aperture of this lens enables a tight depth of field, especially when shooting close-ups, and gives an attractively smooth bokeh (the pictorial quality of defocused areas in an image).

Nikon Z 30 review: Video performance

The Nikon Z 30’s video performance is good in parts, less so in others. With 4K UHD being the order of the day, it’s good that the Z 30 can shoot at this resolution with no crop factor, so you can make the most of the Z DX 24-50mm kit lens’s wide angle of view. That’s great news for vlogging. The same goes for shooting slow-motion video at 1080p, at up to 100p/120p. Less inspiring is that 4K UHD video tops out at a frame rate of 25p/30p, so you can’t shoot 4K at 50p/60p.

Although the Z 30 lacks IBIS, it does offer E-VR (Electronic VR) for stabilization during video capture. Typically, this is very effective in beating the shakes in run and gun video capture but necessitates a crop.

Active D-Lighting and different Picture Controls are available when shooting video, and the Flat picture control options works well for grading in post production. However, there’s no HDR option for shooting video in high dynamic range formats. File type choices are MP4 and MOV.

The image quality of video itself is very good, just as it is for stills. There’s no 30-minute limit for shooting video at most resolutions. You can shoot for as long as 141 minutes in 1080p at 50p/60p, and up to 271 minutes at 24p/25p. The highest-quality settings at these frame rates bring the time down to 72 minutes and 141 minutes respectively. Either way, the ability to power the camera from a USB charger or power bank while actually shooting comes in handy, rather than relying on the battery.

Switch to 4K UHD or 1080p 100p/120p for slow-motion video, and the usual problem of overheating comes into play. For these resolutions, you can only shoot for a little under 30 minutes at best.

In practical terms, a performance boost for shooting video comes in the shape of the Z DX 12-28mm f/3.5-5.6 PZ VR zoom lens. It has a very wide maximum field of view, ideal for vlogging when you want to include more of the background, and a powered zoom function with 11 different speed steps.

Better still, if you pair the camera with the Nikon ML-L7 Bluetooth remote (£45/$44), you can adjust the zoom setting at any preset speed via the remote controller.

Nikon Z 30 review: Battery life

The Nikon Z 30 features the same EN-EL25 battery that powers the Z 50 and Z fc, which is rated for 330 shots or 75 minutes of video. That’s 30 shots more than with the Z fc or Z 50, and the same length video. The Z 30’s lack of an electronic viewfinder gives it a bit more staying power for stills and, in out tests, we also found we could far exceed the 330-shot rating when shooting bursts of images in continuous drive mode. Even so, it lags behind the Canon EOS R50 for battery life, the latter lasting for 440 shots with the rear screen, dropping to 310 shots with the electronic viewfinder.

One thing you don’t get in any of the kits mentioned above, nor when buying the body on its own, is a mains-powered battery charger. The camera has a USB type-C (SuperSpeed) port and does come with a charging cable that you can connect to the kind of charger you use for your phone and other gadgets. That’s okay up to a point but, given that battery life can be quite short in mirrorless cameras, it’s nice to be able to recharge one battery while using another. The official Nikon MH-32 mains charger that’s supplied with the Z 50 and Z fc costs an extra £35/$45 to buy separately. You can also power the camera directly from a charger or power bank while using it, but you’ll need an uprated fast-charging cable rather than the one supplied with the camera. The official Nikon upgrade is the UC-E25 USB Cable (£35/$35).

Nikon Z 30 review: Verdic

The Z 30 is aimed primarily at vloggers and content creators. The fully articulated touchscreen certainly works well for vlogging, as does the automatic Selfie mode when you angle the screen forwards. Video performance is good on the whole, and 4K UHD can be captured with no cropping, making the most of wide-angle lenses. However, 4K frame rates top out at 25p/30p and overheating is likely to cut shooting times to just under 30 minutes.

For stills photography, the Nikon Z 30 comes up short. The lack of a viewfinder certainly makes it physically short and nicely compact but trying to compose images accurately on the rear screen can be a real challenge, especially when the sun glaring at it from over your shoulder. That said, the Z 30 is more than capable of delivering excellent image quality for stills, with punchy, vibrant pictures straight off the camera. All in all, the Z 30 is a good camera at the price, but could be better.

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