Popular

IP

This is default featured slide 1 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

This is default featured slide 2 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

This is default featured slide 3 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

This is default featured slide 4 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

This is default featured slide 5 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

video

Showing posts with label Handson. Show all posts
Showing posts with label Handson. Show all posts

Sunday, June 3, 2012

Hands-on review: Leica M Monochrom

Although it is based on the Leica M9, the Leica M Monochrom has no colour filter array, so it can only record black and white images.
This means that every one of its 18 million pixels is used to record brightness values, and there is no demosaicing of the red, green and blue signals to create a full colour image.
Removing the RGGB (red, green, green, blue) filter array above the sensor has a number of effects. Firstly, more light can reach the sensor, which is good news for noise control because the signal requires less amplification, which is prone to introducing noise.
The fact that more light reaches the Leica M Monochrom sensor means that it is effectively more sensitive than the Leica M9's sensor, so the base sensitivity setting is higher.

Consequently, the Leica M Monochrom's native sensitivity range runs from ISO 320 to ISO 10,000, but there's also a low-end extension setting of ISO 160. In comparison, the Leica M9's native sensitivity runs from ISO 160 to ISO 2,500, and there's an expansion setting of ISO 80.
Traditionally, Leica cameras are favoured by reportage and street photographers, and these users often need to use middle to high sensitivity settings, so the Leica M Monochrom's higher base setting is likely to be good news for them. Those who need to use very fast shutter speeds or shoot with a wide aperture can resort to shooting with an ND filter over the lens.

Like the Leica M9, the Leica M Monochrom has a 2.5-inch monitor with 230,000 pixels. This is disappointing enough in a camera that has a retail price that's just a shade under £5,000 or $7,000, but it in a camera that retails for around £6,000 in the UK or $8,000 in the US, it is staggering.
Reviewing images on the screen of a pre-production sample Leica M Monochrom revealed that the screen isn't as detailed or as sharp as that of a mid-range DSLR that costs a fraction of the price.

One difference between a Leica rangefinder and a DSLR or compact system camera (CSC), however, is that the screen is only ever used to review images. There is no live view system.
Accordingly, images are composed in the Leica M Monochrom's optical viewfinder. As in the Leica M9, this provides a larger field of view than the mounted lens (down to 28mm), and it displays the most basic exposure information in large red LEDs.

Naturally, focusing is manual only and uses a rangefinder system whereby the lens ring is rotated until the floating image lines up with the one visible through the viewfinder. This takes some care and practice.
Leica's M-series cameras have a build quality that is second to none. It's not really news then that the Leica M Monochrom has a wonderfully solid feel, it is constructed from a single piece of magnesium alloy with a textured leather coating and brass top and bottom plates. It is a thing of beauty.

Although its body is large in comparison with the current crop of mirrorless compact system cameras, it's important to remember that the Leica M Monochrom houses a full-frame sensor and it is considerably smaller than the full-frame DSLRs that are currently on the market.
Although the LCD screen isn't the most detailed, it is useful for checking exposure, since the shadow and highlight warnings can be set to operate at levels that suit the photographer. The warnings are shown in red, which stand out well against the monochrome image.

Like the Leica M9, the Leica M Monochrom has none of the exotic modes found on the average digital camera - it is intended for use by a photographic purest who wants to concentrate on the key aspects of exposure and composition.
Nevertheless, it is possible to select one of three tones (Sepia, Cold and Selenium), which can be applied to JPEG images as they are recorded. There are also a number of filter options that emulate the effect of using optical filters on black and white film photography.
As yet we have only been able to inspect the results from a pre-production sample of the Leica M Monochrom, but they are very impressive. Noise appears to be very limited, and even in the shadows shots taken at ISO 2500 have only a fine grain visible at 100 per cent on the computer screen. Tonal gradations also look natural and smooth.
We spoke to Leica Akademie tutor Brett (he doesn't use his last name) who used the Leica M Monochrom with the new Leica APO-Summicron-M 50mm f/2 ASPH lens (£5,400/$7,195) for a couple of days. He told us that although he is very impressed with the camera, it will take a little while before he learns how to get the absolute best from the DNG format raw files.

Because he has found that the Leica M Monochrom records a lot of detail in shadows and noise isn't a major issue, he recommends that images are exposed for the highlights.
He's also a fan of the new Summicron 50mm lens, but warns that it is so sharp that it emphasises the drop-off in focus, which is quick, so it's absolutely essential to get the focus spot-on, especially when shooting wide open.

Clearly with a retail price of around £6,000 in the UK or $8,000 in the US, the Leica M Monochrom isn't going to sell in huge numbers, but from the reaction to its launch it is obvious that it holds huge appeal to the Leica faithful. It seems to sum up both the history and the future of Leica as a great photographic brand.
It's about getting the best black and white photo possible, and this means gathering the maximum amount of luminance data in-camera. It comes with Adobe Lightroom and Nik Silver Efex Pro 2, recognising that in the modern age some adjustment is often necessary to get the desired look.

Results may look good straight out of the camera, but there is usually room for improvement. Traditional black and white photographers shoot to produce a negative that has all the information required to create a print, and dodging and burning are just part of the process. It's just the same with digital photography.
While the Leica M Monochrom can produce JPEGs for that instant result, the DNG raw files have the most data for manipulation.

It's early days yet, and we have yet to test a full production sample, but the Leica M Monochrom looks like it could be the ultimate camera for shooting black and white images.
We anticipate that many well-heeled and professional Leica users will invest, keeping their existing Leica M9 or Leica M9-P for colour work while the Leica M Monochrom is reserved for black and white shooting. Nice.

Source: View the original article here

Hands-on review: Toshiba AT300

Premier partnerSamsung

Toshiba's latest 10.1-inch tablet is a fine attempt to undercut the new iPad – it comes in at £329 for the 16GB version and £379 for the 32GB variant.
The device will be known as the Toshiba Excite 10 in the US. Quite why Toshiba has decided to give the UK a lesson in boring branding is anybody's guess.
Tosh hasn't exactly set the world alight with its tablet offerings thus far, but the AT300 packs quad-core Nvidia Tegra 3 as well as Android 4.0 Ice Cream Sandwich. It's no slouch in terms of specs or when it's in use. The AT300 replaces the AT200 which featured a dual-core processor and Android 3.0 Honeycomb (the AT200 was also priced more expensively, too).
The biggest problem Android tablets have is standing out from the crowd and offering consumers a compelling reason why they shouldn't go and buy an iPad. Unfortunately the AT300 doesn't really give a truly compelling reason, but that price point competes effectively with the iPad 2.
It's nice and light at 590g, while the aluminium finish feels very nice in the hand. It's also pancake thickness at 8.95mm. The footprint is 261 x 179mm. The glossy 1,280 x 800 LED display is Gorilla Glass for extra strength. The display is crisp and bright, though pales in comparison to the new iPad or an OLED display.
As you'd expect there are two cameras – a 5MP one on the rear (with LED flash) and a 2MP on the front for video calling. The AT300 also features a full-size SD card slot so you can build on the internal storage of either 16GB or 32GB.
We're not dead keen on the edges of the device, but there's plenty to be pleased about, with micro HDMI and micro USB ports and single 3.5mm headphone jack/mic in addition to that SD slot. A 10 hour battery life is cited - we'll have to test this out properly when we get our AT300 review sample.
The Toshiba AT300 release date is June.


Source: View the original article here

Hands-on review: Samsung Chromebox

Premier partnerSamsung


Some may have suggested that the desktop is a dying breed – a relic of a bygone computing era – but Google is looking to buck that trend by putting its Chrome OS on a tiny computer called the Samsung Chromebox.
The small form-factor PC sports the latest version of Chrome OS and arrives alongside the new Samsung Series 5 Chromebook, to offer up a meaningful competitor to Apple's Mac OS and Windows PCs.
Priced at $329 (£279), the Samsung Chromebox is designed for the lower end of the market – think net-top – and its tiny size and simple interface could just make it a viable computer for people who value simplicity and surfing over file management and power.


The Chromebox ships without a monitor, keyboard and mouse but obviously needs all three – something worth considering if you do not already have the necessary accessories.

Saturday, June 2, 2012

Hands-on review: New Samsung Series 5 Chromebook

Premier partnerSamsung

It would have been understandable for the original Google Chromebooks to be written off as a failed novelty, a mid-price laptop divested of the huge ecosystem that you get with a Windows PC and without the wow-factor of Apple's Macbooks.
But this is Google we are talking about, and the search giant is desperate to show that it can do for the PC what its Android OS did for the phone. The criticisms of the original – some constructive, but some bordering on gleeful must have stung, but the second coming for Chrome OS is clearly a significant step forward
The original laptops, from Acer and Samsung, were nice pieces of gear – thin and portable although more expensive than a netbook and more limited in their functionality because of the operating system.

They also had a key problem with the touchpad – which was literally clunky; uncomfortable to use for long periods and not as responsive as Google or its early adopters would have liked.
But the real issue was Chrome OS itself. Designed around a browser, this was all about cloud connectivity, taking advantage of our increasingly connected world and the burgeoning market in browser apps to do away with our need for local storage, lengthy boot ups and security updates.
Unfortunately, this meant that when the laptop was without a connection it went from being a functional, quirky and well-priced offering to something of a white elephant. Offline use was simply not good enough and the lack of a desktop meant that multitasking was trickier than it should have been for a multi-function device.
The new Chromebook – complete with the latest Chrome OS – aims to address many of those issues and persuade people that the reasonable price of £379 ($592) – or £429 ($670) for the 3G version – for a laptop with 4GB ram, instant boot and a novel new approach is worth the risk of removing the safety net of Microsoft Windows.
Related Posts Plugin for WordPress, Blogger...