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Showing posts with label CAMERAS. Show all posts
Showing posts with label CAMERAS. Show all posts

Sunday, October 19, 2014

Leaked: GoPro's New, Budget-Friendly HERO Action Camera

Leaked: GoPro's New, Budget-Friendly HERO Action Camera


The GoPro leak machine just keeps on leaking: PetaPixel just revealed that GoPro may add a low-spec, budget model to the bottom of its action cam line. Meet the HERO.

If PetaPixel's intel
is to be believed—and they've been extremely reliable in the past—the
simply-named HERO will give up some of the fancier features of its
bigger brothers. No touch display, no 4K video mode, no Wi-Fi or
Bluetooth connectivity.

What it will have is high-quality 1080p30
and 720p60 video, a one-touch QuikCapture button to power-on and start
recording with a single press, 5-frame-per-second burst photo mode at
5MP, and a 0.5 second time lapse.

The 3.9 oz model comes in an
integrated, non-removable rugged waterproof case safe to 131 feet,
automatic low-light mode, 2.5 hours of battery life, a built-in
microphone, and an SD slot for up to 32GB of removable storage.

We
still don't know what pricing will be like, but if PetaPixel's info is
legit, the affordable HERO should offer some great basic capabilities
without the bells and whistles that could push the upcoming Hero4's
pricing beyond reach for some customers. We'll find out for certain on
October 8th, when PetaPixel says the new line will officially be announced. [PetaPixel]

Images via PetaPixel

Saturday, July 19, 2014

Week 28 in review: LG G3 S and Lumia Cyan update

The Week In Review is our series meant to recap all the major
announcements of the week, which you might have missed. Week 28 of 2014
wasn't as busy as the past few weeks, but it still brought us some cool
hardware and brought news of several major software updates.

The long rumored affordable flavor of the LG G3 flagship was made official this week. It is called LG G3 Beat
in the Asian markets and LG G3 S for the EU and CIS regions. The LG G3
Beat packs a 5" IPS HD display, runs on Snapdragon 400 chipset and
features an 8MP camera with laser-assisted auto-focus.



The design and software package remain identical with the LG G3,
while dual-SIM version will become available too. The LG G3 Beat is
already selling in South Korea, while it will hit the shelves soon in Europe at €349.





The owners of Windows Phone 8-based Nokia Lumia smartphones around
the world got a nice present to kick off their summer. The entire WP8
Lumia range, including the carrier-exclusive models, are now getting the
Lumia Cyan update with the latest Windows Phone 8.1 OS.
It brings a plethora of new features and services, and everyone will be
happy to upgrade. The rollout is gradual, but hopefully everyone will
be running on Windows Phone 8.1 soon enough.

The Nokia X lineup wasn't as lucky though. Microsoft has decided to pull the plug on the project
and will lay off 18,000 workers throughout the next six months. It will
continue to support and sell the Nokia X and X2 and they will receive
more updates in the future, although we are doubtful many will be keen
on getting them now.

Microsoft CEO
Three Android 4.4.2 KitKat updates began seeding this week. The lucky devices are Samsung Galaxy Grand 2, Samsung Galaxy S4 Zoom and Sony Xperia T2 Ultra.



The Sony's firmware also includes an option to move apps to the SD card, which is really nice. Meanwhile HTC has begun rolling out HTC Sense 6.0 update for the original HTC One mini.

We also learned BlackBerry is readying its own virtual assistant and it will be installed on the BB10 devices with the next BB 10.3 update. Better late than never, we guess.




BlackBerry Assistant (click to enlarge)

This week gave us a glimpse over the upcoming Huawei's Emotion 3.0 UI. It looks a lot like the iOS 7, but there is no word on its device availability yet.

Huawei Emotion UI 3.0

MediaTek has finally unveiled its anticipated MT6795 chipset
with octa-core 64-bit processor and LTE support. It supports 2K
displays, 120Hz screens, 1080p @480fps video recording and playback,
among others.

Apple iPhone 6 was in the news pretty much every day, as expected. First Amazon Japan confirmed its dimensions and availability. Then we heard news Apple is experiencing issues with the bigger 5.5" model and might not release it this year. The iPhone 6 is also tipped to come with an improved TouchID sensor, and while we knew already about the sapphire display, it may not be spread over all iPhone models. Finally, the case maker Spigen spilled the beans on the iPhone 6 design via a case listing.

Meanwhile Apple announced a partnership with IBM, which will target the enterprise market. You can learn more about the subject in our news.


Tuesday, July 15, 2014

The Secret to Capturing the Best Image Quality with Your Digital Camera

Many modern digital cameras boast incredible ISO speeds. Where ISO 400 or 800 was the top speed in the film era, usually accompanied by grain the size of golf balls, today’s digital cameras can give you top ISOs of 6400, 12,800, 25,600 or even higher. Camera makers boast of these high speeds and use this information to increase camera sales.
Photodune 2896107 digital camera xs
Inexperienced photographers will be tempted to jack up the ISO on their new cameras, and keep it there. However, just because the feature is there doesn’t mean you should use it all the time. In fact, the best practice is to keep your camera set at its lowest ISO setting by default so you will capture the best possible image.
With experience you will learn that higher ISO settings are more appropriatewhen shooting sports, street photography, photojournalism, and low-light situations where you need to stop action. Low ISO images will be cleaner (no digital noise), have a wider dynamic range (more shadow and highlight details), and produce better color depth (smoother color transitions). This is a better choice for travel, landscape and portrait photography, where good detail and accurate skin tone are important.

Let’s geek out

There are two ways you can understand the effect of low versus high ISO on digital images: by reading lab test results, and by looking at sample images.DxOMark Labs is a great resource for sensor tests. It’s an independent lab that tests most current digital camera sensors and publishes the results on their web site. For sample images, you can make your own. Continue reading to learn more.

Digital noise

Run any number of digital cameras through a battery of image quality tests and you’ll see a clear pattern emerge. At the lowest ISO setting, the signal to noise ratio, expressed in decibels (dB), is highest. That’s good, it indicates the lowest digital noise. As you increase ISO, the dB level decreases. The lower the dB level, the higher the digital noise, which degrades the image.
By lmvphoto
Example: If a Canon EOS 70D has a 41dB result at ISO 100, 30dB at ISO 1600 and around 17dB at its top ISO of 25,600, the image with the higher dB will have less noise than an image with a 17dB measurement.
Note: keep in mind that most images when viewed at the recommended distance will appear clean as low down as 30dB.

Dynamic range

Similarly, the dynamic range of a digital camera is widest at its lowest ISO. Depending on the camera, that range can be anywhere from 9 stops to around 14. Typically, with DSLRs, it is around 11-12 stops. In carefully exposed high-contrast scenes, both highlights and shadows will have more detail at low ISOs than at high speeds. In test result charts, dynamic range starts to decrease in more of a curve than a straight line; typically the first few ISO settings are acceptable, but once you pass ISO 800 or 1600 (depending on the camera) the range becomes more limited.
Dynamic range is acceptable at 10 stops or higher. Below that number shadows and/or highlights will become blocked up, especially in contrasty scenes.
Tip: RAW image capture is best for dynamic range. You can use the shadow and highlight sliders in your RAW image editor to reveal even more details in both the shadows and highlights, effectively stretching your camera’s dynamic range. The better your image’s dynamic range is, the more information you can reveal this way.

Tone and color

You may have noticed that some images that show the sky or other areas that should have smooth, subtle transitions, instead show subtle strips of color as the shading changes. This is called banding, and that’s what happens when the tonal range is limited. This is usually an artifact from compressing an image too much when preparing it for web use, but it happens in a more subtle form in photos that come straight out of the camera and, as above, this phenomenon is more apparent in high ISO images, but is imperceptible in low ISO photos.
A camera’s ability to capture subtle changes in tone and color (both expressed in bits) is best at its lowest ISO, and decreases steadily throughout the ISO range. Most DSLRs have a 21-24-bit maximum for color sensitivity, and it can degrade to half of that. Tonal range usually peaks at around 8-10 bit.

Testing your camera in the real world

Enough of the geeky stuff, let’s look at some pictures to see how this plays out in the real world. While the images here were shot with a Canon 7D, you can run your own tests:
  • With the camera on Program mode, take a sequence of photos
  • Start with your lowest ISO and work your way up to the highest
  • Mount the camera on a tripod to avoid shake, which is an unwanted additional variable, and turn off the anti-shake feature (Image Stabilization IS on Canon or VR on Nikon)
  • Shoot both landscapes and people pictures so you can see the effects ISO has on each
  • Make prints at your largest print size and see if you notice the distance at a typical viewing distance
Here are two image comparisons at a range of ISO settings.

Portraits show the difference

The effect of changing ISO is most obvious when you photograph people. In this example, the model was photographed on a sunny day while holding a reflector, against a low-key (darker) background. As the ISO setting is raised, the effect on her skin becomes obvious. Camera: Canon 7D with Canon 85mm f/1.8 lens.
ISO100 portrait full 600
ISO 100
ISO100 portrait detail 600
ISO 100
At ISO 100 (above), skin tone is accurate, with good contrast. In the 100% detail shot, there’s good, natural falloff of light, showing a wide range of tonality and good detail in the darker areas. You can especially see this in the eyes.
ISO800 portrait full 600
ISO 800
ISO800 portrait detail 600
ISO 800
At ISO 800 there is a subtle increase in contrast, an indicator that dynamic range has decreased slightly. Noise has not yet become apparent in the detail photo.
ISO1600 portrait full 600
ISO 1600
ISO1600 portrait detail 600
ISO 1600
By ISO 1600 there is a little more contrast, but again, it is a subtle change. However, you can see the noise in the blow-up, and the smooth gradation from light to shadow is starting to become a bit rougher, indicating that the tone has degraded.
ISO3200 portrait full 600
ISO 3200
ISO3200 portrait detail 600
ISO 3200
ISO 3200, at screen resolution it may still be hard to see the change when you compare this image to the one shot at ISO 100, but by ISO 3200 there is a pronounced decrease in highlight and shadow detail, and rougher color and light transitions.
ISO6400 portrait full 600
ISO 6400
ISO6400 portrait detail 600
ISO 6400
By ISO 6400, the Canon 7D’s highest resolution setting, even at screen resolution a difference is visible. If you look in the details of the shirt and hair, you can see that shadows are more blocked up. A quick glance at the 100% detail is all you need to see the graininess and reduced range of color and tone.

Bonus pointer: The advantage of shooting RAW

ISO100 portrait optimized 600b
Optimized
You can increase an image’s dynamic range by using your RAW image editor’s shadow and highlights sliders, which reveals more information in the highlights, and especially in the shadows. Compare this version of the ISO image with the ones above and notice how much more detail is visible in the shadows, thanks to tweaks done in the RAW image editor.

Landscape subtleties

A scenic lookout in western New Jersey, shot in the middle of the day, at ISO 100, 800, and 3200 with a Canon 7D and Canon 24-70mm f/2.8L II USM zoom lens. While the dynamic range, tone and color only show minor differences here, the level of noise deteriorates at the faster speeds. After looking at these examples, you may wonder why anyone in their right mind would want to shoot above ISO 100 on a bright, sunny day. All samples are straight out of the camera.
ISO100 landscape sooc 600
ISO 100
At ISO 100, this is the full scene.
ISO100 landscape detail 600
ISO 100
In this detail of a 100% blow-up of the ISO 100 image, there is no apparent digital noise, as expected.
ISO800 landscape sooc 600
ISO 800
ISO800 landscape detail 600
ISO 800
At ISO 800, digital noise has started to become apparent in this 100% blow-up detail.
ISO3200 landscape sooc 600
ISO 3200
ISO3200 landscape detail 600
ISO 3200
By ISO 3200, digital noise is obvious, and the overall image quality has deteriorated. The graininess covers up the loss of color quality and tonality somewhat.
ISO100 landscape raw 600
While the samples above are unadulterated JPEGs, what happens if you try to coax more detail out of a shot in RAW? You get more detail in the shadows and highlights. Compare this shot to the original and you’ll see more detail in the sky (highlights) and in the bark and branches of the tree (shadows) on the right.

Bottom line

The bottom line? There may be times when you must pump up your ISO settings, and it’s nice to know that you have that option. But when you are shooting in daylight under normal shooting conditions, you will bring back higher quality images when you shoot at, or near, your camera’s lowest ISO settings.

Huawei Ascend P7 review: the best mid-range phone you've never heard of

Huawei Ascend P7 review: the best mid-range phone you've never heard of
What is a flagship? For some companies, it's about cramming as many features into a device as physics allows. For Huawei, it means something else entirely: Though it creates smartphones for the power-hungry crowd, its most eye-catching devices typically favor mass appeal over brawn. Exhibit A: the Ascend P7, a smartphone that emphasizes design and user-friendliness over a blowsy spec sheet. When we reviewed its predecessor, the P6, last year, we found a gorgeous phone that struggled due to an underpowered engine and lack of LTE. The company promises it's learned from its mistakes, though. So is the P7 the mid-range smartphone you'll actually be proud to show off?

Huawei Ascend P7 review

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13 Photos

Hardware

Before we begin, we have to address the 800-pound gorilla in the room, and we're not just talking about the type of glass that coats both sides of the device. The P7 looks like the result of gene splicing between the iPhone 4 and one of Sony's Z-series handsets. That's not meant to be a criticism, but the lens placement and machining scream Xperia, while the plastic dividers that separate parts of the aluminum band are there entirely for effect.

Similarities aside, it's a beautiful piece of equipment and you'll have total confidence in the solidity of this device when it's in your hand. Huawei's got a knack for putting smartphones together and there's no worry that this kit will creak or bend. It's also tremendously easy on the pocket, since it's only 6.5mm thick and weighs a light 124 grams (4.37 ounces). Rest assured that despite being more than £200 cheaper than the Galaxy S5 here in the UK, it's also a good-looking phone, so you needn't be worried that the posher kids at school/the office/the pub will sneer at your cheaper device. In fact, this would happily sit beside flagships from Samsung and HTC without appearing like the dowdy friend who you only sit with under duress.
I'm conflicted on the subject of comfort. This is because the P7 is a great, big, boxy piece of hardware with squared-off edges. Despite this, at no point did it jab into the flesh of my hand or otherwise make my life uncomfortable. I can't imagine delicate hands disliking the feel of this device, but I'm also aware that my mileage will differ from yours. What is consistent is that the glass backing makes this more of a slip risk than more tactile devices, so if you've got greasy palms and a tendency to be clumsy, buy a case.

If minimalism is your bag, then you'll find the understated lines of the P7 right up your street. Up front are the speaker, light sensor and the 8-megapixel forward-facing camera, all of which linger above the display. On the bottom, there's a micro-USB port for charging, with the 3.5mm headphone jack located up top. The left-hand side is bare, so the right has to hold the micro-SIM and microSD trays, as well as the center-mounted power button -- another Xperia-esque trait. All three are metal, and there's some beautiful machining on the center button -- a high-quality detail from a company you wouldn't always associate with small, design-centric flourishes.

Display and sound

The 5-inch, in-cell LCD from Japan Display really doesn't look as big as it is, thanks to bezels that have been shrunk down to just 3mm. With a resolution of 1,920 x 1,080 (that's FHD, acronym fans) and a pixel density of 445 ppi, it sits in the same league as the Nexus 5, which means we have little to complain about. Pictures and video are crisp; the viewing angles are almost universally good; and it'll hold its own in the noonday sun, even when not on full brightness. Color accuracy is acceptable, although in side-by-side tests with another device, everything looked a little over-saturated. Not enough to annoy most users, though. The company has also retained its so-called gloves mode, which ups the sensitivity on the screen making it possible to use when you're out in the cold.
One particular bugbear of mine is when smartphone manufacturers place the speaker close to where you hold the device. It's been more than a year since HTC demonstrated front-facing speakers are the way forward, so why do companies insist upon this retrograde step? Unfortunately for me, Huawei has stuck the speaker right in the path of my palm, though it's at least made the placement work to its advantage. Thanks to the vertical orientation of the speaker, the curve of your hand may actually make a funnel to amplify the sound, no matter which one you hold it with. The volume is strong up close, but won't fill a room if you're hosting an impromptu dance party. That's not a criticism either, since it means that berks who forget their headphones on public transport will only annoy the people in their immediate vicinity. Small mercies, eh?

Software

The P7 runs Android 4.4, but you wouldn't know it just by glancing at the screen. As ever, Huawei included its proprietary Emotion UI skin, with this particular device running version 2.3 of the software. The first thing die-hard Droid fans are going to notice is that there's no app tray. Huawei and I share the same annoyance with Android's two-stage launcher, so all apps now reside on the multiple pages of the home screen -- yep, just like on iOS. In order to prevent the phone from becoming unnecessarily cluttered, the company crams several of the smaller utilities into folders. That's fine, but don't be surprised if you have to do a little shunting around to get things the way you like it.

Huawei Ascend P7 screenshots

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The landing screen comes preloaded with weather, music, gallery and Google search widgets, all of which are easily dispatched. The "Me" module, which offers up instant access to a favorite contact or two, is largely useless and, thankfully, easy to get rid of. The other upside is that there's a wide variety of customization options, and you can tweak the icons and environment to suit any number of tastes. There's also the option to add a suspend button -- a ring of shortcuts that hovers over the screen, offering instant access to utilities such as note-taking, messaging and music playback.

Buried within the settings menu is Simple, a home screen style that transforms the ordinary Android environment into something more akin to Windows Phone. The company's been offering the setting since the start of the year, but this is the first time I've actually been able to sit down and see what it's like up close. It's certainly a clever way to present this phone to those who may not have as good eyesight or not much familiarity with smartphones in general, but the small icons and text -- there's a lot of blank space on each button -- make me wonder if bigger text and icons wouldn't have done a better job. Unfortunately, these shortcuts only work for launching apps themselves, after which you're just using standard apps with the text blown up.

Camera

Imaging is one area where Huawei has, at least on paper, splashed the cash. Rather than attempting to craft a solution on its own, the company sought out Sony to provide the 13-megapixel sensor used in the P7. Even better, the forward-facing camera now boasts an 8-megapixel sensor, besting both the HTC One M8 (five megapixels) and the Galaxy S5 (2MP). The primary unit is much improved, and the over-saturation we found in last year's model has been dialed down somewhat. There's a pleasing depth to the images now, and I was happily snapping stills and landscapes in the summer sun. In the late-evening gloom, however, photos got a little too murky to be useful, and at night, the images were decent, but tremendously noisy. As the company works on the inevitable Ascend P8, we hope that instead of just throwing in more megapixels, Huawei improves the hardware as well.
Whenever you use a forward-facing camera that doesn't take grainy, blocky selfies, it's a moment of triumph, and even an unattractive curmudgeon like me enjoyed snapping some vanity shots with the P7. The forward-facing unit here is a great piece of kit, and should set the standard for all of those duckface-obsessed teenagers who want to show off how much of a good time they're having on holiday. Speaking of which...
T-shirt: AOL; Coat: Red Herring; Face: Model's Own.
In this world of artifice and constructed reality, everyone wants to be their best when they post braggies (bragging selfies) online. That's why Huawei includes "Face Beauty Mode" as one of the options for the forward-facing camera. With the ability to detect one face in the frame, the P7 will get out the digital Vaseline and smooth out the wrinkles, blocked pores and creases in your face. The only downside is that at a certain point, the effect rapidly begins to backfire, and if you posted a picture of your mug at Beauty Level 10, we're sure people would start calling you to check you weren't ill. Surely those Dove ads have taught us all that natural beauty is the way forward, right?
What of the Huawei Ascend P7's video performance? There's nothing wrong with the images, per se, and we can even forgive the accelerometer issue that caused footage recorded in landscape to occasionally save in portrait. Audio, however, is an entirely different, and painful, story. The P7's microphone manages to be both far too weak and far too sensitive. When the subject is mere inches away from the phone, the audio appears to be piped in from some faraway land. Despite this, the microphone just adores wind shear, and even on an almost entirely still summer day, the footage sounded as if I'd been filming it in a gale. Suspecting that those flaws would make it an ideal device to record indoor gigs with, I took the P7 to see The Brian Jonestown Massacre, and even standing at the back of the auditorium, the audio simply couldn't handle the noise. Instead, it made everything sound as if the handset had been left in a box of dry cereal during an earthquake.

Performance and battery life

HUAWEI ASCEND P7HTC ONE M8LG G3
Quadrant 2.07,17525,54825,548
Vellamo 2.01,1411,8041.405
3DMark IS Unlimited746220,61216,662
SunSpider 1.0.21,239.7782918
GFXBench 3.0 Manhattan Offscreen (fps)N/A11.2N/A
CF-Bench30,10840,22324,667
SunSpider: Lower scores are better.
The subtitle for our Huawei P6 review read "a beautiful handset, but performance is lacking." That's because that handset came with a Huawei-made 1.5GHz quad-core CPU, which, while affordable, wasn't up to the task of running a flagship smartphone. The company says it's learned its lesson, and promises that the tablet-class, 1.8GHz quad-core CPU, Mali-450 GPU and 2GB RAM on show here would be up to the task. This new silicon even boasts HPM technology -- in short, a system designed to offer lower power consumption for demanding applications. As you can see above, however, this new hardware still isn't enough to get the P7's head above its rivals in the benchmark stakes. In fact, in an industry where standing still is equivalent to going backward, the fact that this phone is so far behind its rivals is going to turn off many people who would otherwise consider giving the P7 a shot.

But.

Benchmarks do not tell the whole story, and day-to-day, this apparent weakness was in no way noticeable. Tweeting, making calls, surfing the internet, dicking around on Instagram and watching video were all undertaken with only the odd flicker and stutter to mention. I did find that if I wanted to launch the camera app from a standing start (e.g., from the lock screen), the action didn't keep up with the graphic reorientation as I switched the phone from portrait to landscape mode. The result was that everything would freeze for a second while the software caught up, which meant that I missed a few action shots I would have otherwise been able to take. The biggest test, of course, is in games performance, and graphically intensive 3D titles like Asphalt 8 worked like a dream. The only issue I found was that it took a few loads (and a hard restart) before Dead Trigger 2 would play, but once it did, it was buttery smooth.

So what of the battery life? In Engadget's standard video-rundown test, I managed to crank out a respectable seven hours and 12 minutes from the handset's 2,500mAh power pack. At least, it's respectable if you're contented to compare this with handsets in the same price bracket, such as the HTC One mini and the Galaxy S4 Mini, but more on that later. Over the course of a day with light to normal use, we were finding that it still had around 20 percent of charge remaining to it.

The other thing we need to talk about is the data rate, and unfortunately, while Norwich has a thriving arts scene, beautiful landscape and a fast train to London, Three have yet to offer LTE in the city. That's why I was instead only able to test the P7's 3G performance, which hit 6.62 Mbps down and 1.10 Mbps up. The next time I'm in an LTE area, I shall update this section with my findings. Call quality is perfectly fine, in case you were wondering, not that anyone uses their phones as phones anymore.

The competition

As I benchmarked the P7 and tried to assess its performance, I thought about which phones I should be comparing this device with. On one hand, Huawei, would position this as a significantly cheaper alternative to the HTC One M8 and Samsung Galaxy S5. Unfortunately, at least in the UK, no carriers have announced that they'll be offering the handset, and so we can only look at it in the context of its SIM-free price, which is £330. For around that same amount of cash, you can also buy the Galaxy S4 Mini (£330), the Huawei Ascend Mate(£330) or the first-generation HTC One mini for £320. (Yes, I know the replacement is called the HTC One mini 2, but let's avoid confusion.)

Wrap-up

In a money-is-no-object world, every smartphone would come with a Snapdragon 805, a 41-megapixel camera, a beautiful body and a 4K display. Huawei's aim here was to build a device that could be spoken of in the same breath as the Galaxy S5 and HTC One M8 at a significantly reduced cost. And it succeeded with a handset that is more than the sum of its parts. Huawei wins points for the rock-solid build quality, the materials used and the overall aesthetic. The imaging prowess of both the forward- and rear-facing cameras is better than you may expect from a handset that's priced well within the second tier. That's another merit, since at £330, the Ascend P7 is about £220 cheaper than the Galaxy S5 -- enough money to buy a first-generation Android Weardevice and still have enough money left over for a meal. If you're prepared to accept a few rough edges here and there, the Ascend P7 is a worthy recipient of your hard-earned cash.
Huawei

Ascend P7

Conclusion
With the P7, Huawei has crafted a phone that defies its modest price tag. It may not be as powerful as other flagships, but it's better than other handsets that cost about the same.

Sunday, July 13, 2014

The Camera Histogram Explained


This video does a great job of explaining how the histogram on your camera works and how to read it.



I do slightly disagree with his tip on having a mountain in the

center is the best option, as it does depend on the subject. If you are

photographing a black cat on a black sofa that would be an incorrect

overexposed image.





 

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