Nikon has unveiled the D5100 upper-entry-level DSLR and we've prepared a full preview of the camera, detailing its features. Sitting above the D3100, it includes a 16.2 MP CMOS sensor much like that in the D7000, 1080p movie capability and a side-articulated 921K dot 3.0" tilt/swivel LCD. The D5100 also becomes the first Nikon DSLR to be able to apply special processing filters to stills and video. The company has also introduced the ME-1 external microphone. The camera will be available from this month as a kit with the 18-55mm VR lens for $899.95 while the microphone will retail at $179.99. We've had a production-spec sample of the camera, so have shot our standard test scene and some real-world samples to accompany our preview. (04:03 GMT)

Fujifilm has unveiled the FinePix Z900EXR premium ultra-compact incorporating the company's latest 16MP EXR CMOS sensor. Featuring the same the 460K dot 3.5" LCD of the Z8000EXR, it offers a more useful image-stabilized 28-140m equivalent lens and full 1080p HD movie capture in the H.264 (MOV) format. The camera will be available from May 2011, at a price of $279.95 / £219, in Brilliant Black, Gloss Red, Hot Pink and Royal Blue (05:37 GMT)

Carl Zeiss has announced a bundled lens-set for Canon and Nikon video-enabled DSLRs. Comprising the Distagon T* 2,8/21, 2/28, 2/35, Planar T* 1,4/50 and Planar T* 1,4/85 lenses, the set comes in a custom-designed waterproof suitcase. (22:09 GMT)

Nikon is celebrating the production of its 60 millionth Nikkor lens for its SLR cameras. The lens series was introduced in 1959 with the launch of the Nikkor S Auto 5cm f/2, while SWM was first incorporated in the Ai AF-S Nikkor 300mm f/2.8D IF-ED in 1996. This closely follows a similar announcement marking its 55th million lens in September 2010. (16:42 GMT)

Lensbaby has announced the Composer Pro version of its selective focus lens. Available for Canon, Nikon, Sony Alpha, Pentax and Olympus DSLR mounts, the 'Pro' version uses a metal ball-and-socket assembly with refined focus mechanism for smoother operation. The manual focus lens with tilt control is currently available with either the company's Sweet 35 or Double Glass optics for $400 and $300 respectively. (19:46 GMT)

Just Posted: Our review of the Canon Rebel T3i / EOS 600D enthusiast DSLR. Canon's latest Rebel boasts an 18MP CMOS sensor and an articulated LCD screen in a body shell that combines elements of its predecessor the T2i and the higher-end EOS 60D. As well as the usual complement of manual and auto exposure modes for still photography, the T3i also features 1080p video recording (up to 30fps) with an external microphone socket. On paper, the T3i looks like a bargain - the 60D's internals in a smaller, less expensive body. Is there any reason to still consider its big brother? Read our in-depth review to find out. (19:30 GMT)

Carl Zeiss has announced the E-mount versions for its CP.2 compact prime cine lenses will be available from June 2011. The announcement comes ahead of the NAB videography trade show to be held in Las Vegas from April 9-14. (17:12 GMT)

Canon has released a firmware update for its EOS 60D mid-level DSLR. Firmware v1.0.9 fixes bugs relating to Live View shooting in specific conditions. The latest version also changes name of the Art Filter feature in the Japanese market to Creative Filters keeping it consistent across all regions. The firmware is available for immediate download from the company's website. (17:33 GMT)

Bibble Labs has announced updated versions of its RAW workflow software. Version 5.2.2 extends RAW support to Canon's sRAW and mRAW format, Nikon's D1x, and Sony's A390 and A290 cameras. Both the Pro and Lite versions also fix minor bugs, improve stability and enhance interaction with third party plug-ins. They are currently available as a free upgrade for existing Bibble 5 customers. (17:33 GMT)

We’re pleased to announce a major upgrade of our product database, search, and camera compare pages. The wide-reaching changes bring a number of benefits, making it easier than ever to gain access to everything we know about a product. Two of the biggest changes are the addition of brand pages and the complete redesign of the individual product pages. These bring together all dpreview's content, along with images, user reviews and external resources in a single ‘dashboard.'
We've also spent 6 months enhancing our database so that it not only includes more detailed specifications for all the latest cameras but also gains an entry for virtually every currently available mainstream lens. In turn, this has also allowed us to make our product search function into a much more powerful tool for finding the camera or lens that provides the functions you want.
You'll find the new Camera and Lens search pages (and all the other new goodies) under the Product Database menu at the top of the site. This has been a major development project and, until we iron out all the creases, please consider it to be in beta status, and let us know if you spot any errors or problems. (18:38 GMT)

Leica has announced a function-enhancing firmware update for its X1 APS-C sensor-based compact camera. Available from March 29, the updated version brings a host of improvements and additional features to the manual focus function, enhances AF performance in low-light conditions and promises improved JPEG quality. (20:30 GMT)

Sigma has announced its DP2x large-sensor compact will start shipping from late April at a suggested retail price of $800 in the US markets and £516.65 in the UK. A revised version of the DP2 camera that captures three-color information at 4.7M positions (14M total data points) it features a new AF algorithm for faster auto focus, first seen in the DP1x. (20:30 GMT)

Fujifilm Japan has announced it has now resumed production of its X100 large-sensor compact. The company says that, after a brief interruption caused by the combined earthquake and tsunami that hit its Japanese plant, it has now resumed production and the camera should reach stores from the first week of April. (18:51 GMT)

Ricoh has announced function-enhancing firmware updates for its GXR interchangeable lens cameras and the GR Digital III compact. In response to user feedback, the GXR firmware adds five processing filters, a subject tracking focus and exposure mode, and a revised magnified playback option. The GR Lens A12 28mm and 50mm modules also gain an option to assign white balance or exposure compensation to the zoom buttons. The GR digital III also gets 5 additional functions including an electronic level and Target Follow function. The firmware updates will be available for download on March 28 from Ricoh's website. (16:45 GMT)

Just Posted: Our review of Panasonic's DMC-GH2 video-optimized Micro Four Thirds camera. The GH2, launched back at Photokina 2010 is the replacement for the company's GH1 and retains a position as one of the most flexible HD shooters in the stills/video crossover market. In addition to subjecting it to our standard tests, we've looked at the GH2's video capabilities in more depth than we've ever done, including contributions from respected film-maker Uwe Steinmueller. We have also partnered with video sharing site Vimeo to offer embedded previews of video footage for the first time, while still making the original files available for download. Follow the link to read our 21-page in-depth review. (21:17 GMT)

Sony has launched the NEX-FS100 E-mount professional camcorder. The model, whose development was originally announced in November last year, is the latest addition to the company's NXCAM line-up of broadcast-standard camcorders. It features an Exmor CMOS sensor in what the company describes as Super35 format (essentially the same size as the APS-C sensors seen in existing E-mount cameras). It records 1080p Full HD videos at various frame rates depending on region (60, 30 and 24fps in NTSC countries, 50 and 25 in PAL) at bitrates of up to 28Mbps. Other features include a 3.5" LCD, built-in GPS, SDXC compatibility and Slow-motion video recording. TThe camcorder also features industry-standard XLR audio connectors. It will be offered as a kit with the Sony E 18-200mm F3.5-6.3 OSS lens at a suggested retail price of $5850. The company has also launched the world's first dust- and rain-proof professional HD camcorder in the shape of HXR-NX70. (17:12 GMT)

DxO Labs has updated its DxO Optics Pro raw converter for Windows and Mac. Version 6.5.6 extends Raw support to Canon's 600D/T3i and 1100D/T3, and Olympus's E-PL1 in the both Standard and Elite editions. It also includes 48 additional camera/lens optical modules. The latest version is available as a free download to existing users or as a 30-day trial. (17:12 GMT)

Nikon has released a Windows-only update for its ViewNX image viewing and editing software. Version 2.1.2 resolves the issue related to the incorrect display of the 'my Picturetown' photo sharing and storage service when previous versions were not uninstalled before updating. (17:39 GMT)

Apple has released an updated version of its Aperture raw-conversion and photo management software. Version 3.1.2 improves overall stability, enhances iPhoto compatibility and fixes minor bugs. The update is available for immediate download from Apple's website. (21:48 GMT)

Nikon has posted a firmware update for its CoolPix P100 back-illuminated CMOS based superzoom. Version 1.2 resolves glitches with LCD display after the camera was switched back on from its stand-by mode in specific settings. The firmware is available for immediate download from the company's website. (17:42 GMT)

Just Posted: It seems like everybody is talking about tablet computers at the moment, and one of the most talked-about - Apple's iPad 2 - launched last week here in the US. We thought this was a good opportunity to take a look at the iPad 2 from the point of view of enthusiast photographers. Apple's App Store contains hundreds of photography-related applications for the iPad - is Apple's latest shiny gadget just a toy, or can it be genuinely useful as a photographic tool? Read our 3-page article to find out... (23:05 GMT)

Pentax has announced the Optio RS1500 compact camera with interchangeable, user designable covers. Identically specced to the RS1000 launched last year, it features a simpler, snap-on system for attaching different covers, rather than the screw-on system of the older model. The RS1500 ships with 10 skins, with the option to download or create your own cover that secures behind a transparent front-plate. Features include a 14MP sensor, a 27.5-110mm equivalent lens and 720p HD movie recording capabilities. (22:00 GMT)

Adobe has released an updated version of its Photoshop Express image-editing and preview application for Apple's iPad, iPod and iPhone. Version 2.0 introduces the optional Adobe Camera Pack available via an 'in-app' purchase that adds noise reduction, self-timer and Auto-Review functions for $3.99. Photoshop Express 2.0 is available as a free download from Apple's App Store for new users and as an update for existing users. (17:02 GMT)

Lexar has started to ship its Professional 128GB and 64GB 133x SDXC memory cards. Announced at CES 2011, they offer guaranteed read speeds of 20MB/s speeding up transfer of HD videos and hi-res images images to a computer. The 128GB card is the industry's first card of that size and, with a recommended retail price of $329.99, is for sale alongside the $199.99 64GB version. (17:30 GMT)

As the full effects of Friday's combined earthquake and tsunami become apparent, dpreview would like to extend its sympathies to the people of Japan being affected. dpreview works closely with several companies in the affected region and our thoughts are with their employees at this difficult time. However, while it's clear that these events will have an impact on the photographic industry, we feel now is not the time to be speculating on such issues. Instead we would like to draw attention to ways of contributing to relief efforts, via organizations such as the Japanese Red Cross. Click through for a link to donate. (17:59 GMT)

Just Posted: Our full review of the Pentax K-r upper entry-level DSLR. When we reviewed the Pentax K-x in December 2009 we thought it was a little cracker. The K-r builds on this by adding visible AF points, a higher ISO range and faster continuous shooting to the K-x's already successful feature mix but the competition has not been standing still. Click on the link to read how the Pentax K-r fared in our studio tests and how it stacks up to its latest peers in the upper entry-level bracket of the market. (23:32 GMT)

Sigma is inviting the public to select five finalists from its annual scholarship contest. The company's second annual scholarship contest was launched in November 2010 and offers prizes of cash and equipment to students seeking higher education in a photo-related field. Anyone registering with an email address can help narrow-down the field from 167 to the final five from which a winner will be sleected by a panel of Sigma executives. Voting is open until April 1 2011. (19:01 GMT)

Adobe has released 'Release Candidates' of its Camera RAW 6.4 and Lightroom 3.4 raw processing software. The updates cover 7 additional cameras including Canon's 600D/T3i and 1100D/T3, Olympus's XZ-1 and E-PL2, and Samsung's NX11. They are available from the company's Adobe Labs site and also address a number of issues reported via customer feedback. The company uses the term 'Release Candidate' to denote software that is well tested but not yet the final version. (20:51 GMT)

Pentax has released firmware updates for its K-5 digital SLR and 645 medium format camera. Version 1.03 for the K-5 improves overall stability as well and AF accuracy in low-light conditions. Firmware v1.03 for the 645D brings in a series of minor feature improvements to the camera. The latest firmware versions are available for immediate download from the company's website. (18:10 GMT)

Just Posted: Studio Samples from the Canon Rebel T3i/EOS 600D and Pentax K-r. We're working away on a series of enthusiast-level DSLRs at the moment and have just finished processing the shots from our standard studio scene. Both cameras have been added to our comparison tool and can be accessed from all of our recent reviews. We've added a couple of comparison pages to our Rebel T3i / EOS 600D preview that pit the two cameras side-by-side and against two of their peers. (02:07 GMT)

Fujifilm Japan has announced a shortage of its FinePix X100 large-sensor compact camera and accessories because of higher than expected demand. The company says it is attempting to boost production to meet demand. The latest word from Fujifilm USA is that cameras will be available in the US during the last week of March or first week of April. (18:33 GMT)

Samyang Optics has shown a prototype 7.5mm F3.5 fisheye lens for the Micro Four Thirds system at the Focus on Imaging trade show in Birmingham, UK. The new lens is considerably more compact than the company's existing 8mm fisheye designed for SLR cameras. In a brief press release, the company also reveals that this lens is intended to be the first in a new series of optics designed specifically for interchangeable-lens compact system cameras. (10:54 GMT)

Samyang Optics has released the final version of its 35mm F1.4 lens in Canon, Nikon, Pentax, Samsung NX, Sony Alpha and Four-thirds mounts. Announced at Photokina 2010, the company said it has revised its design since then. It retains the underlying 12 element in 10 group design announced at that time. It will sell at a recommended retail price of €379. (18:09 GMT)

Phase One and lighting maker Profoto have announced the Profoto Studio light-control plug-in for the Capture One Pro 6 raw processing and editing software. Currently available only to Mac users, the free plug-in works with the $499 Profoto Air USB transceiver to wirelessly control Profoto lighting equipment. (10:00 GMT)

Olympus has released firmware updates for its E-5 DSLR, E-PL2 Micro Four Thirds camera and XZ-1 enthusiast compact. The latest versions for the E-5 and XZ-1 resolve minor bugs relating to LCD display and external flash units respectively. Version 1.1 for the E-PL2 changes default setting of the image stabilizer to 'On' when used with the add-on Fisheye, Wide-angle or Macro lenses. (18:03 GMT)

Dpreview.com is looking for another three team members to help expand what the site can offer. We're looking to recruit two editorial staff and a development engineer to join our team in Seattle, WA, and increase both the quantity and variety of content. The editorial positions are for writer/editors and will involve testing and reviewing cameras and other photographic equipment with opportunities to write news stories and develop other content areas, while the software engineering role will help develop smarter ways to deliver content and services. So if you'd like to help shape the future of the world's biggest digital photography website, check out the details after the link. (00:47 GMT)

Pentax has launched the Optio S1 digital compact camera in three apparently 'gem-like' finishes. Sporting a 14MP sensor, 2.7" LCD and 5x optical zoom that starts at a wide 28mm equivalent, it features 720p HD video recording, sensor-shift image stabilization and a High Dynamic Range (HDR) mode. The camera also comes with the latest set of image-processing filters including Miniature and HDR filter. (22:00 GMT)

Olympus has announced the SZ-30MR compact, which allows simultaneous capture of 1080p HD videos and full resolution stills. The 24x superzoom is built around a 16MP CMOS sensor and is capable of 9 fps full-resolution continuous shooting and can generate 3D images. It features a 3.0" LCD and zoom lens stretching from 25 to 600mm equivalent. The spec is rounded out with the company's Magic Filters for both stills and videos, AF tracking and image stabilization. Also announced is the UK-only SZ-20, which houses a 12.5x (24-300mm equiv.) zoom in a slightly smaller body. The SZ-20 loses the multi-record function but is otherwise essentially the same specification. (06:00 GMT)

Olympus has released the Tough TG-810 rugged compact featuring built-in GPS, electronic compass and manometer (air/water pressure gauge). It features the same 14MP sensor, 28-140mm equivalent zoom lens and 920K dot 3.0" LCD of the recently released TG-610, but in a tougher body. It is dustproof, waterproof to 10m (33 ft), shockproof to 2m (6.6 ft) and freezeproof to -10 C (14 F). The camera features 720p HD video recording and a two-shot 3D option that can even be used in underwater mode. It will be available from April 2011 at a retail price of $399.99. (06:00 GMT)

DxO Labs has updated its DxO Optics Pro raw converter for Windows and Mac. Version 6.5.5 extends Raw support to Sony SLT A33 and Nikon Coolpix P7000 in the both Standard and Elite editions. It also includes 51 additional camera/lens optical modules, taking the total to over 3000 combinations. It is available as a free download to existing users or as a 30-day trial. (20:21 GMT)

Studio test samples from the Panasonic DMC-GH2 Micro Four Thirds camera. In the process of working on the forthcoming in-depth review of the GH2, we have shot our standard studio test scene. To allow easy comparison with its peers, we have now added these shots to our comparison tool, found in our existing reviews. The GH2 can now be selected from the pull-down list within any review. At the same time, a full ISO-range set of Adobe Camera Raw 6 files has also been added for Panasonic's GF1. (01:58 GMT)

Lensbaby has introduced the Sweet 35 optic for its selective focus lens system. With a focal length of 35mm, it features an internal 12 blade aperture controlled by a dial on the front of the lens with an available range of f/2.5 to f/22, in contrast to previous optics which used drop-in aperture discs. The optical unit is composed of 4 multi-coated glass elements in 3 groups, has a 46mm filter thread and is compatible with the Composer, Muse, Control Freak and Scout lens bodies. (10:48 GMT)

Samyang has released a version of its 8mm F3.5 Fish-eye lens optimized for the Sony NEX-VG10 camcorder. The 8mm f/3.5 Fish-Eye CS VG10 manual focus lens features the same optical construction as the still photography version, but has been adapted for smoother focusing. The company also plans to introduce a smaller f/2.8 E-mount optically redesigned version of the lens for the NEX-5/3 cameras. (22:54 GMT)

Just Posted: Our beta samples gallery from the Fujifilm FinePix X100. We've been lucky enough to have been able to borrow a pre-production sample of Fujifilm's hotly-anticipated large sensor, retro-styled compact camera, and have put together a samples gallery to give an initial flavour of its capabilities. This includes images shot in a variety of lighting conditions, in both colour and black and white, and across a range of ISOs, apertures and subject distances. (15:03 GMT)

Just Posted: Our review of the Panasonic Lumix DMC-GF2 Micro Four Thirds camera. Although resembling the GF1 with its compact, flat-body design, the GF2 has been re-targeted at point-and-shoot upgraders through the addition of a simplified touch-screen interface. It is built around a 12MP CMOS sensor but with a more powerful processor than its predecessor, allowing AVCHD video recording of 1080i60 movies from 1080p30 capture. Are these features enough to make it stand out in this competitive market? Read our full review to find out. (19:30 GMT)

Casio and Ricoh have released firmware updates for the Exilim EX-H20G and G700SE digital cameras respectively. Firmware version 1.02 for the EX-H20G extends the storage of GPS position logs from seven days to fourteen days, while also improving other GPS-related functions. The G700SE update fixes a minor fault when using the optional GPS unit amongst other small changes. Both are available for immediate download. (19:36 GMT)

Nikon and Hasselblad have announced updated versions of their ViewNX and Phocus software. ViewNX v2.1.1 fixes a series of minor bugs in both Mac and PC versions. Hasselblad's Phocus v2.6 adds new features such as image rating and dust removal. The company has also released 'Quick' and 'Mobile' versions of Phocus. (19:30 GMT)

Samsung has announced details and release dates of five lenses for its NX interchangeable camera system. The latest additions include three prime lenses, alongside two movie-optimized zooms. The previously announced 18-200mm F3.5-6.3 OIS will be joined by a 16-80mm F3.5-4.5 in December 2011. Meanwhile the previously discussed 16mm F2.4, 60mm F2.8 OIS Macro and 85mm F1.4 will be launched between July and October 2011. All five lenses are compatible with the company's i-Function focus-ring-as-function-dial feature. (13:30 GMT)

Samsung has released more details of future NX system plans to the South East Asian market. A Korean blog is reporting the company as planning three NX body types, including a higher-end model, along with six lenses including a 700mm prototype. The additional lenses include the 16mm and 85mm lenses discussed at the time of the NX100 launch and build on the details shown to a Taiwanese blog in September 2010. As usual, Samsung has made no formal announcement for the US or European markets. Several of the proposed lenses were shown at the CES trade show in January. (19:18 GMT)

Leica has has announced firmware updates for its S system lenses and revisions to its Image Shuttle image editing software. The latest firmware for the 35mm, 70mm, 120mm and 180mm lenses, and the software update are available for immediate download to registered customers. (19:36 GMT)