Thursday, 2 June 2011

THE MAXIMUM BRIGHTNESS FOR IPHONE4

As you might expect, that has a huge impact on graphics and text. Even the basic iOS4 homescreen, familiar now to anyone with an iPhone 3G or 3GS, looks rejuvenated, with icons crisp and detailed. Load up the browser, meanwhile, and that pixel density means – as long as your eyesight is up to it – you can make out text at far lesser levels of zoom than on the last generation handset.. Developers using the new iOS4 SDK will be able to rework their apps to take advantage of all those extra pixels, but Apple has built in some intelligent rendering so that non-updated software doesn’t look entirely bad. It’s a little like moving from a small-screen phone to one of the current breed of 4.3-inch devices like the HTC EVO 4G or forthcoming 4-inch Super AMOLED Samsung Galaxy S, and discovering you can see much more of a webpage at the default zoom than you could before, only far betterStill, it’s a good incentive for updates, particularly in games which look, frankly, stunning on the iPhone 4.Connectivity
 
 Connectivity remains broad, with a few key changes over the 3GS; there’s still quadband 850/900/1900/2100 UMTS/HSPA and quadband GSM/EDGE, together with Bluetooth 2.1+EDR, WiFi b/g/n (though only single band 2.4GHz 802.11n, not dual-band like the Apple Airport Express supports) and A-GPS. As before there’s a digital compass and accelerometer, plus proximity and ambient light sensors that control the iPhone’s display during use, but Apple has also slotted in a three-axis gyroscope. This allows for far more precise interpretation of what orientation in 3D-space the iPhone 4 is being held in, and was well received by game developers at WWDC 2010.There’s still no standard USB 2.0 port, only the proprietary Apple Dock Connector, and still no expandable memory slot. Two versions of the iPhone 4 will be offered, as with the last-gen 3GS, with either 16GB or 32GB of storage (a “new” 8GB 3GS has been slotted in as the $99 entry-level handset). The end result is, unsurprisingly, the fastest iPhone to-date, whipping between homescreen pages, booting apps in record time, and generally being lag-free.Camera We’ve a feeling Apple buyers are used to the absence of, say, a microSD card slot, and we’re not entirely sure where on the iPhone 4 it could have been accommodated, but it’s something to bear in mind if you’re wanting to take advantage of the Retina Display’s excellence at playing high-bitrate video.Inside, squeezed into the narrower chassis, is the same Apple A4 processor as powers the iPad. In addition to the 1GHz chip they’ve also doubled the RAM, which is now 512MB rather than the 256MB of the iPad and iPhone 3GS.While they may have protested otherwise, photography has always been a weak point in iPhone handsets (though that hasn’t stopped owners from making hefty use of the camera). Happily the iPhone 4 marks a significant step up on that front. There are now two cameras: one, a 5-megapixel unit with autofocus and a single LED flash, on the back for general photography and video recording, and the second, a VGA-quality camera embedded in the front of the smartphone, and used for video calls. As we’re seeing from other manufacturers of late, Apple has signed up to the “it’s not just megapixels” message, pointing to other factors like sensor size and lens quality as just as – or more – important.
 
While at 5-megapixels it’s not the highest resolution camera in a smartphone on the market – there are several with 8MP, and Nokia’s N8 will bring 12MP when it launches later this year – Apple say they’ve made sure pictures benefit from careful design rather than plumping for the biggest sensor that could fit in.It’s a decision that shows in the end results, with still photos being a significant step up from what the 3GS could produce. Not only are colors and detail more accurate, but there’s less of the cellphone “fuzz” that often works as a giveaway that a cameraphone’s smaller lens was involved. Even without the LED flash, low-light performance is noticeably stronger, with indoor and evening shots losing their murkiness. The LED flash itself is, like most of its ilk, of limited benefit; there’s a relatively narrow sweet-spot in terms of range that, outside of which, images are either over- or under-illuminated, but it’s serviceable all the same. Controls still err on the side of simplicity, with touch-to-focus control, a 5x digital zoom, manual flash settings (that basically amount to on/off and auto) and a shutter release button; we’d love to see a dedicated hardware camera key, since we imagine the iPhone 4 is going to replace a lot more dedicated digicams.Thanks to the boosted processor speed, both loading up the camera app and actually taking pictures is faster than before, and there’s less chance that you’ll miss the shot waiting for the iPhone to catch up. 720p HD video recording is also supported, with Apple claiming full 30fps framerates, and you can use the LED flash as a video light. This proved roughly on a par with one of the point-and-shoot camcorders available from Flip, Kodak and others, though you’ll need a steady hand since there’s no image stabilization. $4.99 gets you iMovie for iPhone from the App Store, the mobile version of Apple’s video editing app, complete with a finger-friendly interface, various transitions, themes, effects and titling options. It’s unlikely to replace your use of the desktop version, but for trimming and combining a few clips for a mobile upload to YouTube it’s surprisingly usable. If anything, though, we do think Apple should have bundled iMovie with the iPhone 4 as Nokia are doing with their N8 video editing app, and it’s worth noting that the app exports in .MOV format which may need converting to play on devices outside of Apple’s ecosystem.

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