Just Posted: Our hands-on preview of the Olympus 75mm F1.8 for Micro Four Thirds. The 75mm is Olympus' premium grade portrait lens for the joint Olympus/Panasonic mirrorless system. We've had a pre-production example in the office for a couple of days and have prepared a hands-on preview, to which we'll add a samples gallery when the promised production example arrives.

Facebook has announced a free app called Camera that focuses on viewing and sharing photos. Instead of showing what your friends are doing and thinking, it just dives straight to their photo galleries. The app also allows you to share multiple photos at a time, including descriptions and tagging. There are also tools for cropping and applying filters to your images. The app allows Facebook to be used in a much more Instagram-like manner (and it seems too soon for this to be a product of the Facebook buyout). Updated with first impressions.

Olympus has released more details about the M.Zuiko Digital ED 75mm F1.8 lens it announced alongside the E-M5, back in January 2012. The relatively compact large-aperture lens offers a 150mm-equivalent field-of-view and a fast internal-focus design. The 75mm will be available from 'Summer 2012' at an expected selling price of around $899.99.

Fujifilm has officially unveiled its promised adapter to allow the use of Leica M-mount lenses on the X-Pro1. Unlike third-party versions, the adapter has electronic contacts for communication with the camera body, and a Function button that allows quick setting of the lens in use. To make full use of the adapter, a firmware update for the X-Pro1 (version 1.10) will be made available in June 2012. This will allow the user to create up to six lens profiles to correct distortion, vignetting and corner colour shading (in a similar manner to the Ricoh GXR Mount A12). The camera can show framelines in its unique hybrid viewfinder for 21mm, 24mm, 28mm, and 35mm lenses; for other focal lengths the electronic viewfinder or rear screen will show a preview with 100% coverage of the field of view.

We've added a hands-on video describing the features of the Pentax K-30 and explaining how it fits in alongside the K-01 and K-5. As it's a pre-production camera, we've not been able to demostrate the autofocus speed but we have included an example of the shutter sound when continuous shooting. Click here to see our Pentax K-30 preview video.

Just Posted: Our Canon EOS 5D Mark III review. The 22.3MP 5D Mark III appears to offer similar specifications to 2008's 5D Mark II. However, sensor and processing developments, along with a host of user-interface revisions mean the Mark III is a much more capable camera. It also gains a greatly-improved autofocus system. So do these changes justify the considerably higher price tag? Read our full review to find out.

Accessory maker NEX-Proshop has launched its ISO hotshoe adapter for Sony's NEX series of mirrorless cameras. The adapter screws into the NEX accessory port and adds a standard hotshoe and PC-Sync socket. It is designed for use with radio flash triggers (as the NEX accessory port is not designed to support a full-size flashgun), allowing much more flexible flash use with the NEX cameras. The adapter is available now for a cost of $79.99.

Apple has issued Digital Camera Raw Compatibility Update 3.13, adding compatibility for six extra cameras, allowing their Raw files to be opened by software on the Mac, including Aperture and iPhoto. The latest update brings support for the Canon EOS-1D X, Nikon D800E, Nikon D3200, Olympus OM-D E-M5, Panasonic Lumix DMC-GF5 and Sony SLT-A57. The update means Apple is the first major software maker to support some of these models.

DxO Labs has updated DxO Optics Pro to v7.5, which now runs natively as a 64-bit application for both Mac and Windows. The latest version can handle larger images than previous versions - the 200 megapixel limit means the addition of D800 support prove no challenge. 60 of the extra 200 lens/camera profiles are for the Nikon. The latest version is available for free to existing DxO Optics Pro v7 users, with a 33% discount available for new customers until June 30th.

Most of us associate studio photography with complex lighting setups requiring lots of equipment. Yet you can get great results using just a single light. Professional photographer Thomas Park takes you through a range of single-light scenarios. Read his article to learn how close attention to the position of both subject and light source can improve your own studio portraits.

Casio Japan has announced the Exilim EX-ZR300, a high-speed CMOS-based 16MP 12.5x zoom compact. The ZR300 features a 24-300mm equivalent zoom and dual 'Exilim Engine HS' processors to offer autofocus in as little as 0.12sec and start-up in under 1 sec. It can shoot 1080p video at 30fps or 640x480 video at up to 120 fps. The ZR300 promises battery life of around 500 shots per charge. It is one of the first cameras to support Toshiba's Flash Air wireless SD card format. No details of a US or European launch are yet available. (From DCWatch)

Pentax has officially announced the K-30 weather-sealed mid-level DSLR. It's built around the same updated 16MP sensor and processor as the K-01, so should offer impressive image quality and borrows many of the features from the more expensive K-5. It can shoot continuously at up to 6 frames per second, has a maximum shutter speed of 1/6000th of a second and can capture video at 1080p30. We've had a pre-production K-30 in the office for a couple of days and have prepared a preview looking at what it offers.

Pentax has announced the DA 50mm f/1.8, an affordable telephoto prime lens for APS-C interchangeable lens cameras. The lens offers a 76.5mm equivalent field of view on the company's DSLRs or K-01 cameras. The lens is designed to look like Pentax's premium 'Limited' prime lenses but features a plastic lens mount. The lens is only 38.5mm long at its shortest, and will sell for around $249.95/€269/£249, making it a small and relatively inexpensive addition to a camera bag.

Just Posted: our hands-on preview of the Panasonic 12-35mm F2.8 fast standard zoom for Micro Four Thirds. It's the first constant-aperture standard zoom for a mirrorless system - helping strengthen the position of the system developed by Panasonic and Olympus. We've been using a pre-production version of the lens on both makers' cameras, and have prepared a hands-on preview and a small gallery of sample images.

Apple has taken the well-known iPhoto app that's bundled with Apple computers and adapted it for the iPad and iPhone. Although the iPhoto app offers a range of image editing tools including global and localised adjustment control (using multi-touch tools) there's a lot more to it than that. Joanne Carter takes a look.

Photographer Andrew Kane found himself having to report damage to the Nikon D4 he'd rented this weekend, after it was attacked by a grizzly bear. Kane had the presence of mind to document the attack, using his D700 and 70-300VR that he had slung around his neck - grabbing some impressive sharp images of the bear mauling the rented kit. LensRentals seem satisfied with his explanation - Roger Cicala has blogged that replacement gear is already on the way to Kane.

Panasonic has formally announced a 12-35mm F2.8 lens for the Micro Four Thirds system. The LUMIX G X VARIO 12-35mm/F2.8 ASPH./POWER O.I.S offers a traditional 24-70mm equivalent field-of-view, and is the first constant-aperture standard zoom for a mirrorless system. The lens is the latest in Panasonic's premium 'X'-branded range and uses the company's latest Power O.I.S optical stabilization system. It will be available in August, pricing details are not yet available.

The restriction that limits video recording in digitial cameras to 30 minutes could be abolished if the World Trade Organization's Information Technology Agreement (ITA) is expanded. Several countries, including the USA, have begun informal talks to extend the scope of the ITA to include products that are currently subject to tariffs and duty. At present, digital cameras' video cuts off after 30 minutes to avoid them being classified as video cameras (which attract 5.4% duty). If the video cameras are added to the ITA, this distinction would no longer matter. (via Nikkei)

Samsung has announced the US prices for its latest 'Smart' Wi-Fi enabled NX mirrorless cameras, the NX20, NX210 and NX1000. It has also said the NX1000 will be available from June at a price of around $699 with the 20-50mm retractable zoom. The range-topping 20MP NX20 with its electronic viewfinder will retail for around $1099, with the i-Fn version of the 18-55mm F3.5-5.6 kit zoom. The NX210, meanwhile, will cost around $899 with the same lens.

Just Posted: our hands-on preview of the Sony NEX-F3. The F3 is Sony's latest entry-level model, replacing the NEX-C3. It's built around the company's second-generation 16MP CMOS sensor, as featured in the NEX-5N and gains a built-in flash. It's also the first NEX to feature a screen that flips all the way into a vertical position, to make it easier to shoot self-portraits. We've been using an F3 for a couple of days - read our hands-on preview to find out what we thought and to see the images we shot.

Just Posted: Our Sony SLT-A37 hands-on preview. The A37 is Sony's latest entry-level SLT camera - offering DSLR capability in a full-time live view camera. The A37 retains the small body of the original SLT cameras and helps create an easy-to-understand four-model lineup. It gains 1080p24 HD video shooting and features such as lens correction and focus peaking from the more recent SLT models, offering a strong feature set. And, with a recommeded price of $599 with 18-55mm zoom, it's $150 cheaper than the A33 was. Read our hands-on preview to discover more.

Sony has launched the SLT-A37 entry-level 16MP SLT camera and the enthusiast-grade 18-135mm F3.5-5.6 SAM standard zoom. The A37 is a refreshed replacement for the A35, bringing the entry-level model into line with the rest of the SLT lineup. Meanwhile the 18-135mm F3.5-5.6 SAM lens offers Alpha mount users a more flexible upgrade option over the entry-level 18-55mm without having to stretch to the 16-50mm F2.8. The A37 will be available from June at a cost of $600 with 18-55mm kit zoom. The 18-135mm lens will follow in July for $500 or as a $200 premium over the basic zoom kit cost with any of the company's SLT cameras.

Sony has announced the NEX-F3 entry-level 16MP mirrorless camera and lightweight 18-200mm F3.5-6.3 OSS stabilized superzoom lens with for the E-mount. The NEX-F3 gains a built-in flash, along with the updated 16MP sensor from its NEX-5N big brother. Its big party trick is undoubtedly its LCD, whose image automatically mirrors when it's flipped up for taking self-portraits. Meanwhile, the E18-200mm F3.5-5.6 LE OSS is a more compact, lighter 11x superzoom lens for the NEX system. Starting in June, the NEX-F3 will have an MSRP of around $600, while the SEL18200LE will sell for around $850 from July.

Flickr has revised its image viewing pages for the first time in several years - finally letting images expand on larger monitors. The long-awaited feature, which Flickr is calling 'liquid' design, uses the largest image it can to fit your browser window, without ever upscaling. This combines with the latest version of 'lightbox' which shows your images as large as it can on the whole screen. Sadly the best results only come for images uploaded since March 1st 2012, for which 1600 and 2048 pixel versions will have been generated.

The Atlantic's 'In Focus' photo blog has collected a fascinating series of images from the Russian space program. Looking at both Zvyozdny gorodok, the training center just outside Moscow better known as 'Star City,' as well as the Baikonur Cosmodrome in Kazakhstan, the pictures give an insight into post-Shuttle space flight. Astronauts and scientists from different countries train together, as do entrepreneurs preparing for their paid trips into space. The collection uses a variety of photographic styles and beautifully conveys the faded futurism of space travel. (from The Atlantic)

Fujifilm has announced the WCL-X100 wide-angle adapter lens for its X100 large sensor, fixed-lens compact. The 0.8x adapter extends the camera's 35mm equivalent field of view out to 28mm equivalent. It is designed to match the X100 in terms of both appearance and quality, sharing the camera's Fujifilm's Super EBC coating and made-in-Japan construction. The WCl-X100 will be available from June at a price of around $350. To enable use of the converter, the company has also issued firmware v1.30 which adds a function for its use as well as fixing two minor operational bugs.

Nikon's D800 has been awarded the prestigious Camera Grand Prix 2012 title and also won the public vote for best camera. The awards, organized by the Japanese 'Camera Journal Press Club' also recognized the Canon EF8-15mm F4L USM as lens of the year. Meanwhile, the editors awards were given to Sony's NEX-7 and the Olympus m.Zuiko 45mm F1.8.

Just posted: Canon PowerShot SX150 IS review. The PowerShot SX150 IS is a mid-priced compact superzoom - it's not as slim or stylish as the Panasonic TZ (ZS) models that have helped define the class, but it still boasts a 28-336mm equivalent zoom range and a comprehensive set of features, both in terms of special effects and manual controls. It also differentiates itself through the use of AA batteries and a CCD sensor - both helping to keep costs down. So has Canon cut too many corners in pursuit of cut-price capability?

Adobe has confirmed that it will fix the security problems with Photoshop and other CS5.x packages, having originally suggested that a paid upgrade to CS6 was the only solution. The security concerns, raised by the company on May 8th, were rated as 'critical,' meaning it could 'allow malicious native-code to execute, potentially without a user being aware.' Despite this, the original solution raised in the company security bulletin was to upgrade to CS6, leaving CS5.x users vulnerable. The bulletin has now been updated.

Just posted: Sony Cyber-shot DSC-HX200V in-depth review. The second review expanded from Jeff Keller's work at the Digital Camera Resource Page looks at Sony's latest full-size superzoom camera. The Sony HX200V combines the company's latest 18MP back-lit CMOS sensor with a 30x zoom lens giving a 27-810mm equivalent range. There's image stabilization, as you'd expect for such a long zoom range and, as indicated by the 'V' in the model name, it also has built-in GPS. So does this add up to a perfect vacation camera or an unwieldy confection? Read the full review to find out.