Showing posts with label Camera. Show all posts
Showing posts with label Camera. Show all posts

Sony Alpha SLT-A55: Translucent Mirror Inside

Posted by aashu Thursday, 24 February 2011 0 comments

Sony has been in the spotlight recently for its NEX E-mount cameras for their unique design, features and primarily its good image quality. Fundamentally, the NEX-5 and NEX-3 cameras were like point and shoot cameras with large sensors had no viewfinder.
 
The first of the translucent mirror cameras from Sony - the SLT-A55 
Sony’s SLT-A55 falls in the A-mount category and it has a viewfinder like any DSLR would, but they’ve gone with an electronic one like the ones on a superzoom camera.  If that’s the case and if the A55 is just a DSLR with an electronic viewfinder, should you bother buying one? 

Features
The A55 uses a translucent mirror that allows light to pass through it which means the mirror need not move out of the way when a photo is to be clicked. This should technically speed up focusing and reduce noise since the mirror doesn’t have to move every time you click a photo. Currently, there are two models in this family – the A33 and the A55. The A55 is the one we’re reviewing today. The A55 is a 16.2 MP camera that uses a standard APS-C type CMOS sensor. The ISO range spans from 100 to 12,800 which is very similar to the Sony NEX-5 we reviewed a week back. Most of the similarities end here – the A55 uses the standard A-mount, which was inherited from minotla. This means that there’s a wider range of lenses to choose from.

The NEX cameras used a new E-mount but it’s also interesting to note that companies such as Sigma have committed to making lenses for the new mount. The camera comes with a stock 18-55mm F3.5-5.6 SAM lens kit.


 

The camera has a foldable LCD screen which can be turned around on its back if required. It’s used to operate the camera – both the settings and also for focusing. The screen displays colours well, perhaps a little too vibrantly. The electronic viewfinder is designed in the same way as you would find it on any other camera. The quality of the EVF as with other cameras is bad. It’s not crisp and it’s no replacement to an optical viewfinder. This is quite probably one of the poor points of this camera. 

Sony NEX-5: Finally, A Giant Leap!

Posted by aashu Sunday, 20 February 2011 0 comments


Point and shoot cameras are preferred by most of us because they are cheap and easy to use. Every one of us would like to own a DSLR camera but the learning curve is a deterrent. Companies such as Olympus and Panasonic tried to bring the best of both worlds by introducing micro four third cameras which are somewhere in between a DSLR and a point and shoot.
Sony's new NEX5 camera with an APS-C size CMOS sensor
Sony is now trying to bridge the gap even further by introducing their NEX series of cameras which uses the exact same size sensor as a standard DSLR. We’re looking today at the new Sony NEX-5, a mirrorless 14.2 MP CMOS sensor camera.

Features
While the NEX-5 looks like a compact point and shoot, it comes with a detachable lens. The camera we received came with an 18-55 mm lens, which fits into Sony’s new E-mount which has been specially designed for these cameras. There aren’t many lens options for the camera yet but the available choice should be sufficient for most casual photographers.  One of the other surprising things is that the Sony NEX-5 uses a SD card. Sony has been using its proprietary MemoryStick cards for a long time and a slow shift towards SDHC can be seen across their DSLR cameras as well.
The most basic of controls on the NEX-5
There is no mode selection dial on the camera, so one you need to browse through the interface for a couple of seconds to be able to change the mode. It will take some time for even experienced users to get used to the new interface. For example, one of the annoyances is the ISO and White Balance setting being placed in the Brightness/Color menu. Other than that, most of the other controls are still present as they are on any other camera and are easy to use.

Design and Build Quality
The camera also has a detachable flash which can be very easily unscrewed from its mount by hand. The flash can be turned on by pushing it upwards. When you remove the flash unit, a thin flexible flap covers the gap in the body. The camera is compact and fits reasonably comfortably in one hand. The camera tends to lean towards the heavy lens at the front though.
The easy-to-remove detach flash unit at the top of the NEX5
The trigger release button is beautifully machined, and so are most of the other menu buttons. The dial at the back is made of good quality plastic. It’s tactile and the menu buttons very precisely positioned next to the tilting 3-inch screen. The build quality of the lenses used on some of the micro four third cameras was appalling, but the lens on the NEX-5 is far studier and so is the mount on the camera body. In fact, some of the early Sony A200 models had somewhat poor quality lens bodies. They were light and felt cheap during operation. The focus and zoom ring have a fluid motion and are very sturdy.  Even the battery and memory card door bay are built well. The NEX-5 feels like a much more serious camera.

Mirrorless interchangeable lens cameras (MILC) are becoming increasingly popular. This new breed started gaining momentum with micro four-thirds cameras like the Olympus PEN E-P1, which use 4/3-type sensors that are half the size of sensors used in entry-level digital SLRs and about nine times the size of sensors used in compact cameras. The latest development in the MILC segment is models that use APS-C size sensors. The first such camera was the Samsung NX1, and now we have two models that Sony recently added to their Alpha brand, NEX-3 and NEX-5. Both models sport a 14.2 megapixel sensor and HD movie recording capabilities. The major difference between the two is that the NEX-5 boasts 1080i video recording and the NEX-3 does it at 720p.

The Sony Alpha NEX-3

Features
The retail sample of NEX-3 that we got from Sony had the body, 18-55 mm kit lens, add-on flash, battery charger and neck strap. Despite a large sensor (23.4 x 15.6 mm), the NEX-3 is very slim (33 mm), unlike DSLRs, which are twice as thick. DSLRs get the bulk from the mirror box and the optical viewfinder mechanism through which you can see the frame via the lens. The mirror box has a mirror, which reflects the image of the frame to a five-sided prism (pentaprism). When you see through the optical viewfinder, you see the frame reflected back by the pentaprism. On releasing the shutter, the mirror flips upward and makes way for light to reach the exposed sensor. After the photo is shot, the mirror returns to its position. That’s why you hear a prominent clapping sound when you shoot with a DSLR. Mirrorless cameras are slim because they don’t use a mirrorbox. Hence, they don’t have an optical viewfinder and the flange focal distance from the lens mount to the sensor is also less. So you have to frame your shots using the LCD.

Don't flip out now.

The NEX-3 features a 3-inch flip out LCD with a resolution of 921k dots. The LCD flips up 90 degrees and can be tilted 45 degrees downward, but it doesn’t flip out sideways or rotate. This acts as a limitation when you want to shoot from odd angles. Nevertheless, it’s good enough to shoot in a crowd with the camera over your head or if you wish to get a bug’s-eye view of the subject.

The control panel to the right of the screen comprises two buttons, whose function depends on the mode you’re using, and a jog dial that doubles up as a 5-way d-pad with a button at the center. There’s a small rubber patch at the top-right corner, which lends a good grip. You use the index finger to release the shutter and the last three fingers curl around the body. The grip isn’t as satisfying as holding a DSLR camera because it’s too slim. Also, the grip surface is plastic with tiny square blocks, unlike DSLRs, which offer a rubberized surface. The top houses the playback button, stereo mic and a proprietary Smart Accessory Port. Besides the bundled flash, you can also use an optical viewfinder and stereo microphone, which are optional. The flash can be enabled by simply lifting it up.

Both cameras use a new E-mount for compatible interchangeable lenses. The choice of lenses is very limited, but you can use A-mount lenses meant for Sony’s Alpha DSLR cameras with the LA-EA1 adapter, which is again an optional accessory. The bundled 18-55 mm F3.5-5.6 lens has a metal finish and is of excellent quality. It employs Sony’s Optical Steady Shot tech for image stabilization and the plastic petal hood cuts out flare.

Don't like that lens? Switch it out!

User Interface
The NEX-3 is a breeze to use thanks to its intuitive user interface. The Menu button brings up the main menu from which you can choose the shooting mode, camera settings, image parameters and playback settings. You can use the jog dial or the d-pad to scroll through the menu. It would have been more convenient if there was a mode selection dial on the top rather than having to  press the center button of the d-pad and using the jog dial each time you wish to change the shooting mode.

A good thing here is that a detailed description of the mode is displayed on the screen. In addition to the Intelligent Auto mode, which automatically identifies the characteristics of the scene and uses appropriate exposure settings, there are Program (P), Aperture Priority (A), Shutter Priority (S), Manual (M), 3D Sweep Panorama, Sweep Panorama, Anti Motion Blur and Scene Selection modes. So
depending on the subject, lighting, type of scene, and your knowledge of exposure settings, there’s pretty much everything to choose from. The most interesting mode is Sweep Panorama, which lets you capture a 180 degree panorama. This feature is offered in Sony’s premium digital cameras, but it has a different feel here. The moment you release the shutter, the camera goes ‘click’, ‘click’, ‘click’ rapidly.
You’re supposed to pan the camera 180 degrees from left to right. 


Sony have announced the launch of their newest range of point-and-click cameras, the Alpha NEXs and yes, we so totally called it. The Nex-3 and Nex-5 have interchangeable lenses and aim to aim to capture DSLR-quality photos at the size and weight of point-and-click digicams.

The Nex-5

Mr. K Teshirogi, Business Head, Alpha division, Sony Corporation had this to say. “For photographers who are averse to extensive manual controls on a camera, the NEX-5 and NEX-3 offer sleek form factor, as well as user-friendly settings. This allows them to capture professional quality photos effortlessly. For experienced photographers, lightweight NEX offers serious DSLR performance in a camera that they can easily carry with them at all times.”

Mr. M.Tamagawa, MD, SONY India & Mr. K Teshirogi, Business Head Alpha Division, Sony Corp

Both the Nex-3 and Nex-5 are 14.2 megapixels and while the Nex-3 can capture 720p video, the Nex-5 lays claim to 1080p video recording at 60fps! That explains the HDMI port present on the cameras - you can shoot videos in HD and play them back on your TVs or Monitors.

I see HDMI, people.

They both also sport the Background Defocus feature, which defocus the background in order to make the subject of the photograph grab the most attention from its viewers. This could be really useful for users who dabble in macro photography. In addition, the cameras can capture upto 7 frames per second in still photographs, which will create some pretty cool fast-moving action pictures.

The Nex-3

To top it all off, 3D panoramic photographs are also an option with these cameras, even though you can’t take normal 3D pictures. It’s strange to say the least, and maybe that feature will show up in a firmware update later.

3D Sweep Panorama

The USP of this range of cameras has to be the interchangeability of the lenses, though. The cameras, in DSLR style, give you the option to hotswap the lenses attached to the camera at any given time. While the cameras will ship with the SEL1855 - an 18-55mm wide-angle zoom lens that costs Rs. 10,990, other lenses will be available for purchase. These include the SEL16F28, a 16mm lens and the SEL18200, which is an 18-200mm lens. These will cost Rs. 14,900 and Rs. 49,990 respectively. You can also use Sony's actual A-mount DSLR lenses on these cameras, but you’ll need to purchase an adapter for that. This adapter will set you back by Rs. 10,990.

Shapely and petite

The Nex-3 is available in two colours – black and red, and is priced at Rs. 29,990 while the Nex-5 is only available in black for Rs. 34,990. The package will include the cameras, one 18-55mm wide angle lens, a 4GB memory card and a detachable flash.


As well as announcing the new Acer Iconia Smart Android smartphone, and now we get to have a look at the Acer Iconia A100, which is a 7 inch Android tablet that was launched previously.
The Acer Iconia 7 inch Android tablet will come with Android 3.0 Honeycomb at launch, although the in the video below it is running Android 2.2 Froyo.
Acer Iconia A100
Other specifications include a Tegra 2 processor, HDMI out a five megapixel camera on the back and a two megapixel camera on the front


The latest iPhone 5 rumor is that Apple is currently testing three prototype models of the iPhone 5, and the rumor comes from a Taiwan based website which has in the past published information about new Apple devices that have been true.
According to the rumor one prototype iPhone 5 is identical to the existing iPhone 4, except for a larger battery and a more powerful camera, although this doesn’t tie in with the earlier rumor that we heard about the iPhone 5 featuring a larger display.
Apple Testing Three iPhone 5 Prototypes?
The other reported prototype which sound interesting, is an iPhone 5 with a slide out QWERTYkeyboard, this is something we heard last year and didn’t materialize, and something we don’t thinkApple will produce.
If Apple are looking to make more version of the iPhone 5 we suspect they will launch two separate models, a new iPhone 5 to replace the iPhone 44 and an iPhone mini to go after budget Android devices.


Nikon has unveiled a line of new cameras today and further to the launch of its compact Coolpix S9100With 18x Zoom its also launched a 36x Zoom DSLR named the Coolpix P500.
The P500 features a 12.1 megapixel backside illumination CMOS sensor which helping it take clear pictures even in low-light conditions, together with a massive mega zoom which is the equivalent of an 810mm lens on a 35mm camera. To help with the massive its also equipped with a range of auto-focus features to help you achieve perfect shoots and framing even on full zoom and comes with hybrid Vibration Reduction (VR) stabilisation system.
Nikon Coolpix P500
The new Nikon P500 also features Nikon’s EXPEED C2 high performance digital image processing engine that will complement other functions including Scene Auto Selector, Best Shot Selector and Smart Portrait System.
The P500 can also record full 1080p full HD video with stereo sound and allows capturing still pictures during recording together with the addition of special features which help you record videos at slow motion or with high-speed special effects.
On the reverse of the P500 is an LCD screen that can be tilted upwards or downwards for more comfortable shooting from heights above or below eye level.

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