顯示具有 iPhone 5 iSight Camera 標籤的文章。 顯示所有文章
顯示具有 iPhone 5 iSight Camera 標籤的文章。 顯示所有文章

2013年2月9日 星期六

iPhone DFU Mode Explained

DFU Mode iPhone

Ever wondered what DFU mode iPhone means? You might have come across phrases such as putting iPhone in DFU mode or the iPhone restore mode while trying or learning to jailbreak your iPhone. Putting iPhone in DFU mode basically means to force the iPhone into restore mode so that it can interact with iTunes without loading the iPhone operating system. Now you might be wondering about the difference between putting the iPhone in DFU mode and simply launching iPhone recovery mode. The main difference is that the boot loader and the operating system do not load in iPhone DFU mode when trying to restore an iPhone, but it does so in the regular iTunes iPhone restore mode.

 

put iphone in dfu mode

What is DFU mode is used for

The letters DFU stand for device firmware upgrade, and as the name suggests DFU mode iPhone is used when someone wants to change or upgrade the firmware of their iDevice. DFU mode iPhone is usually used when a user wants to jailbreak their device and that usually requires an upgrade or downgrade to the iPhone firmware or the installation of a custom firmware. So for example if you wanted toupgrade your iPhone to the latest iOS 6 and wanted to jailbreak iOS 6, then you would have two put iPhone in DFU mode before you can progress further.

Put iPhone in DFU mode

It’s quite simple to enter DFU mode iPhone and it’s quite easy to get a hang of the process once you have done it a couple of times, however if you are using a jailbreaking tool such as Redsn0w, then you can also benefit from the on-screen instructions shown by redsn0w to put iPhone in DFU mode. But putting iPhone in DFU mode is an essential jailbreaking skill to learn so we have listed the exact steps you need to follow to enter DFU mode iPhone.

dfu mode iphone

Step 1: Connect your iPhone and open up the iTunes software. Now you have to turn your iPhone of while it is plugged in

Step 2: Now you have two press the power button at the top and the home button at the same time together for 10 seconds. This is the crucial step for DFU mode iPhone. Once the 10 seconds are up, keep holding down the home button and release the power button.

Step 3: Keep on pressing down on the home button and wait for a message to appear in iTunes which tells you that iTunes has detected an iPhone recovery mode.

If you followed all the steps correctly then you have successfully entered in DFU mode iPhone and your screen should be completely blank. The blank screen is what verifies and confirms that we have put iPhone in DFU mode. If you see anything on the iPhone such as a restore logo, then that means that you only managed to enter the standard recovery mode iPhone and not the DFU mode iPhone, so the process would have to be run again.

Exit DFU mode iPhone

Now if you were able to successfully enter DFU mode iPhone and wanted to exit DFU mode iPhone, then you simply have to press down the power button and the home button for around 10 to 15 seconds while you are connected to iTunes. This will turn off your device. And then to reboot, press the power button as usual to boot back up.

As  I mentioned before, DFU mode iPhone is usually used when trying to jailbreak iPhone, an example of that might be putting iPhone 3G DFU mode to jailbreak it or even unlocking it for that matter. So if you find yourself tinkering quite frequently with your iPhone, then learning the process of DFU mode iPhone is a good thing as this is something that you will do quite frequently when jailbreaking and unlocking your devices such as iPhone, iPad or the iPod touch.

Tagged as: apple iphone, DFU Mode, How To, iOS 6, itunes, jailbreak tools, redsnow, Tips And Tricks, Tutorial, unlock

iPhone DFU Mode Explained

2013年2月6日 星期三

iPhone 5 iSight Camera Review

Apple iPhone 5

The latest iPhone from Apple comes with the iSight camera found on the 4S and has the ability to shoot 28 megapixel resolution images. It is available in black or white with prices starting from £529.00 and increasing depending on the size of the built-in memory, with options being 16Gb, 32Gb and 64Gb.

iPhone 5 iSight Camera Features

The new iPhone features the 8 megapixel iSight camera that was found on the iPhone 4S and has been improved with a brand new panorama feature using one smooth motion up to 240 degrees. It uses the gyroscope, A6 chip and camera app to create a high-resolution panorama up to 28 megapixels.

The app has been updated, with 40% faster photo capture and better performance with reduced noise in low-light. With Face Detection, up to 10 faces can be recognised by the camera. The camera app maintains features previously found such as the LED flash, grid to help with composition and HDR.

Videos are recorded in full 1080p HD with improved video stabilisation. The front camera records in 720p HD, but the main use for this is FaceTime. Pictures can be taken at the same time as video recording.

Apple iPhone 5

Key Features

  • 8 megapixel iSight camera
  • Five element f/2.4 lens
  • 4 inch, 727k dot retina touch screen
  • GPS and digital compass
  • 1080p HD video recording up to 30 fps with improved stabilisation
  • 240° panorama mode creating 28 megapixel images
  • Autofocus
  • Tap to focus video or still images
  • Face detection in video or still images
  • LED flash
  • HDR
  • Available in black or white

Apple iPhone 5

iPhone 5 iSight Camera Handling

The iPhone 5 is the lightest iPhone yet being just 7.6mm in depth, it is slightly taller than its predecessor as it has a larger screen, but weighs just 112g. It is the perfect size for keeping in your trouser pocket.

The screen is a 4 inch widescreen multi-touch display with a resolution of 1136x640 pixels. It is wonderfully bright and clear and very simple to use. Apple haven't changed any of the physical buttons, but have moved the headphone socket to the bottom and have changed the USB to a lightning connector, which is much smaller than the one used on previous models.

There are very few options available within the camera app that comes pre-installed on the iPhone 5. There are options to adjust the flash setting, turn HDR mode on/off, switch between the front and back cameras, switch to video mode and the shutter release button. There are other apps available which offer a self-timer, burst mode and other settings which are familiar on compact cameras.

We took a number of shots to test the camera's responsiveness, from switch on to first photo, shot to shot and focusing speed. We take a number of shots and then use the average to ensure accurate and consistent tests, making it easy to compare with other cameras.

Shutter Response
  0.05 secs
Switch on Time to Taking a Photo   34.0 secs
Shot to Shot without Flash   0.2 secs
Shot to Shot with Flash   2.2 secs


The shutter responds quickly and is very quick from shot-to-shot, but does take an age to switch on.

Apple iPhone 5

iPhone 5 iSight Camera Performance

Additional sample photos and product shots are available in the Equipment Database, where you can add your own review, photos and product ratings.

Apple iPhone 5 Sample Photos

Portrait | 1/25 sec | f/2.4 | 4.1 mm | ISO 50

Portrait | 1/25 sec | f/2.4 | 4.1 mm | ISO 50
High-Res

Landscape | 1/475 sec | f/2.4 | 4.1 mm | ISO 50

Landscape | 1/475 sec | f/2.4 | 4.1 mm | ISO 50
High-Res

Low Light | 1/15 sec | f/2.4 | 4.1 mm | ISO 800

Low Light | 1/15 sec | f/2.4 | 4.1 mm | ISO 800
High-Res

Pet Portrait | 1/120 sec | f/2.4 | 4.1 mm | ISO 64

Pet Portrait | 1/120 sec | f/2.4 | 4.1 mm | ISO 64
High-Res


Sample Photos - Images are well exposed with good colour reproduction, particularly when using the HDR option (HDR is covered in more detail below). It's not a particularly good camera for portraits as you have to be up close to your subject and skin tones don't look great, although you could use an app such as Perfect365 iOS App to improve your portrait pictures.

Apple iPhone 5 Lens test images

Wide Angle | 1/653 sec | f/2.4 | 4.1 mm | ISO 50

Wide Angle | 1/653 sec | f/2.4 | 4.1 mm | ISO 50
High-Res

Digital Zoom | 1/733 sec | f/2.4 | 4.1 mm | ISO 50

Digital Zoom | 1/733 sec | f/2.4 | 4.1 mm | ISO 50
High-Res

Trees | 1/120 sec | f/2.4 | 4.1 mm | ISO 64

Trees | 1/120 sec | f/2.4 | 4.1 mm | ISO 64
High-Res

Macro | 1/50 sec | f/2.4 | 4.1 mm | ISO 64

Macro | 1/50 sec | f/2.4 | 4.1 mm | ISO 64
High-Res


Lens Performance - Image detail is good, but the digital zoom option is best avoided, you might as well crop your pictures using another iOS app. You can get up close to your subject to take well detailed macro shots.

Apple iPhone 5 ISO test images

ISO50 | 1/33 sec | f/2.4 | 4.1 mm | ISO 50

ISO50 | 1/33 sec | f/2.4 | 4.1 mm | ISO 50
High-Res

ISO64 | 1/33 sec | f/2.4 | 4.1 mm | ISO 64

ISO64 | 1/33 sec | f/2.4 | 4.1 mm | ISO 64
High-Res

ISO400 | 1/20 sec | f/2.4 | 4.1 mm | ISO 400

ISO400 | 1/20 sec | f/2.4 | 4.1 mm | ISO 400
High-Res

ISO640 | 1/17 sec | f/2.4 | 4.1 mm | ISO 640

ISO640 | 1/17 sec | f/2.4 | 4.1 mm | ISO 640
High-Res


ISO Noise Performance - You can't manually control the ISO setting on the iPhone but it rarely goes above ISO 200 even in darker conditions. This may lead to blurry photos if you are shooting moving subjects in low light. Noise isn't a problem up to ISO 200, but you can see in the ISO 400 image above that noise has reduced image quality. As you'd expect it worsens when using ISO 800 (see low light image above).

Apple iPhone 5 White-balance test images

AWB - fluorescent lighting | 1/20 sec | f/2.4 | 4.1 mm | ISO 200

AWB - fluorescent lighting | 1/20 sec | f/2.4 | 4.1 mm | ISO 200
High-Res

AWB - incandescent lighting | 1/40 sec | f/2.4 | 4.1 mm | ISO 50

AWB - incandescent lighting | 1/40 sec | f/2.4 | 4.1 mm | ISO 50
High-Res


White Balance Performance - You can't control the white-balance setting either, but under our fluorescent and incandescent studio lights, the iPhones auto white-balance performs well.

Panorama 1 | 1/1004 sec | f/2.4 | 4.1 mm | ISO 64
Panorama 1 | 1/1004 sec | f/2.4 | 4.1 mm | ISO 64

Panorama mode - Panorama images are really impressive, they are really well stitched together with impressive detail, the full size version of the image above is 25 megapixels!

Window No HDR | 1/20 sec | f/2.4 | 4.1 mm | ISO 80
Window No HDR | 1/20 sec | f/2.4 | 4.1 mm | ISO 80
  Window HDR | 1/20 sec | f/2.4 | 4.1 mm | ISO 80
Window HDR | 1/20 sec | f/2.4 | 4.1 mm | ISO 80
Drive No HDR | 1/128 sec | f/2.4 | 4.1 mm | ISO 50
Drive No HDR | 1/128 sec | f/2.4 | 4.1 mm | ISO 50
  Drive HDR | 1/128 sec | f/2.4 | 4.1 mm | ISO 50
Drive HDR | 1/128 sec | f/2.4 | 4.1 mm | ISO 50


Another impressive feature is the HDR mode, with this switched on it takes two pictures, one with HDR and one without. In the first example above, you can see the extra detail in the image in the bright window. The second example gives you a lovely blue sky when using HDR, the non-HDR version looks rather dull.

Video - Below is a video recorded in full 1080p HD and quality is good.

Value For Money

The iPhone 5 is available with prices starting at £529. The market for smartphones with a good camera is intense, with options including the Nokia Lumia 920 (8.7 megapixel camera) priced around £300, LG Optimus 4X HD (8 megapixel camera) priced around £310, Samsung Galaxy S III (8 megapixel camera) priced around £380, Sony Xperia T (13 megapixel camera) priced around £400 and Nokia PureView 808 (41 megapixel camera) at £499.

iPhone 5 iSight Camera Verdict

Upgrading from the iPhone 4 to iPhone 5 delivers a clear increase in image quality. Not only this but it is quicker in use, for example, HDR pictures are rendered much quicker. We recommend you use the HDR mode all the time as it generally produced much better results. The new panorama mode is excellent and really easy to use.

What is frustrating is the limited ability to change camera settings, such as ISO, white-balance, or simply to use a self-timer. There are apps available that allow you to set a self-timer, but surely it's about time Apple opened up these options via their own camera app.

In terms of the camera, the iPhone 5 is the best yet. You can spend much less and buy a compact with much better image quality, but as a smartphone camera, the iPhone 5 is pretty good.

iPhone 5 iSight Camera Pros

Large number of apps available
Fantastic panoramas
HDR mode delivers good results
Size and weight
Geotagging
LCD screen
White balance performance
Easy to share pictures

iPhone 5 iSight Camera Cons

Expensive
No image stabilisation
LED flash not great
Very few camera settings available

FEATURES  
HANDLING  
PERFORMANCE  
VALUE FOR MONEY  
VERDICT  


Apple iPhone 5 Specifications

Manufacturer Apple
Lens
Max Aperture f/2.4
Lens Range No Data
35mm equivalent No Data
Image Sensor
CCD pixels 8Mp (Megapixels)
Pixels (W) 3264
Pixels (H) 2448
Sensor Size No Data
Sensor Size (width) No Data
Sensor Size (height) No Data
Aspect Ratio  
LCD Monitor
LCD Monitor 4in
Screen resolution 727,040 dots
Touch Screen Yes
Focusing
Focusing modes
  • Autofocus
  • Touch AF
Exposure Control
Shutter speeds longest No Data
ISO sensitivity No Data
Video
Movie mode Yes
Video Resolution
  • 1920x1080
Video FPS 30
Stereo Sound Yes
Other Features
Image Stabilisation Yes
Interface
USB USB 2
Wi-Fi Yes
Storage
Internal Memory No Data
Power Source
Battery Type Built-in rechargeable lithium-ion battery
Box Contents
Box Contents Apple EarPods with Remote and Mic, Lightning to USB Cable, USB Power Adapter, Documentation
Dimensions
Weight 112g
Width 58.6mm
Height 128.8mm
Depth 7.6mm

View Full Product Details