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Posts Tagged ‘Sigma’

DxOMark rates lenses for Pentax K-50, and reviews Sigma 50-500mm

23 Aug

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Our friends and collaborators over at DxOMark have been investigating lenses for the Pentax K-50, and have just published an article assessing which score best on this well-featured little SLR. They’ve looked at 28 different models, from both Pentax itself and third-party makes like Sigma and Tamron, and given recommendations for the best lens to buy in various categories. This week they’ve also tested the Sigma APO 50-500mm f/4.5-6.3 DG OS HSM super-telephoto zoom, and compared it to the rather more expensive Nikon AF-S Nikkor 80-400mm f/4.5-5.6G ED VR. Click through for the links.  

News: Digital Photography Review (dpreview.com)

 
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What’s up dock? Sigma USB Dock review

13 Aug

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Sigma has been doing lots of good things recently, and one of its most interesting recent products is the USB Dock. This device connects a lens to a computer and, in concert with Sigma’s Optimization Pro software, allows the user to do such things as update the firmware and configure detailed autofocus microadjustment settings. In our quick review we take a close look at how it works and what it can do. Click through to find out more.  

News: Digital Photography Review (dpreview.com)

 
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Just posted: Sigma 17-70mm f/2.8-4 DC Macro OS HSM ‘C’ lens review

05 Aug

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Just posted: Our review of the Sigma 17-70mm f/2.8-4 DC Macro OS HSM | C. This lens occupies its own little niche in the market, as an upgrade to the typical 18-55mm zoom that offers both usefully extended zoom range and a faster maximum aperture. It also includes Sigma’s ‘Hypersonic Motor’ for silent focusing, and built-in Optical Stabilisation. In the latest of our lens reviews prepared in partnership with DxOMark, we see whether it should be top of the short-list for SLR owners looking to progress beyond their kit lens.

News: Digital Photography Review (dpreview.com)

 
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Sigma US announces Mount Conversion Service for recent lenses

01 Aug

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Sigma has announced a ‘Mount Conversion Service’ for any of its recent ‘Global Vision’ lenses – a paid-for service designed to reduce the uncertainty of changing camera systems. The company says it will charge between $ 80 and $ 250, plus shipping costs, depending on the specific lens. The Global Vision range currently includes seven lenses – from the huge 120-30mm F2.8 DG OS Sport for full-frame DSLRs, down to the 19mm F2.8 DN Art for Micro Four Thirds. The company has also extended the warranties on all new products to four years.

News: Digital Photography Review (dpreview.com)

 
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DxOMark investigates lenses for Canon EOS 6D, and Sigma 30mm F1.4

19 Jul

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Our friends and collaborators over at DxOMark have been investigating lenses for the Canon EOS 6D, and have tested no fewer than 95 lenses from Canon, Samyang, Sigma, Tamron, Tokina and Zeiss to see which score highest. The results are presented in a multipart article, that also compares the EOS 6D results to those from the EOS 5D Mark III and the Nikon D600. Meanwhile for APS-C SLR users, this week DxOMark also reviewed two fast lenses from Sigma, the 30mm F1.4 DC HSM and (in case you missed it earlier this week) the 18-35mm F1.8 DC HSM. Click through for the links.  

News: Digital Photography Review (dpreview.com)

 
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Sigma 18-35mm F1.8 DC HSM preview updated with lens test data

16 Jul

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We’ve just updated our preview of the Sigma 18-35mm F1.8 DC HSM with lens test data, courtesy of DxOMark. This lens has generated a lot of excitement as the fastest zoom ever made for SLRs, but the big question is whether its speed comes at the cost of optical quality. We’ve looked into this by comparing the 18-35mm to some current benchmark designs – and the results may surprise you. Click through to read all about it.

News: Digital Photography Review (dpreview.com)

 
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Sigma blog posts tips for photographing 4th of July fireworks

04 Jul

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Sigma has posted an informative article on its blog by photographer Jack Howard, sharing tips on how to photograph fireworks. The article comes just in time for the 4th of July celebrations in the USA, but is equally relevant to various festivals, year-wide, all over the world. Tips include obvious pointers like making sure you have a good, sturdy tripod, but also more detailed advice about how to set up your camera’s exposure and focus modes, as well as how to trigger exposures. Click through for a link to the article at blog.sigmaphoto.com.

News: Digital Photography Review (dpreview.com)

 
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Sigma UK competition: win a 18-35mm F1.8 DC HSM lens

17 Jun

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The Sigma 18-35mm f/1.8 DC HSM zoom lens has garnered a huge amount of interest from our readers, as the fastest zoom lens ever made for SLRs. UK residents can now win one courtesy of Sigma UK’s latest competition, along with a two day landscape photography workshop in Dartmoor with pro photographer Lea Tippett. For a chance of winning, submit your best landscape photo, along with 80 words saying how you’d benefit from the workshop. The closing date for entries is 31st July 2013: click through for full details.  

News: Digital Photography Review (dpreview.com)

 
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New firmware from Nikon, Olympus & Sigma for 1 Series, XZ-2 and DP models

14 Jun

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Nikon, Olympus and Sigma have released firmware updates for the 1 System cameras, the Stylus XZ-2 and DP Merrill-series APS-C compact cameras. Nikon’s 1 System cameras have been updated to add support for the new 32mm F1.2 kens and continuous AF with the Nikon mount adapter FT1 and AF-S lenses, among other refinements. The Olympus Stylus XZ-2 has been updated for support with the new VF-4 electronic finder, and Sigma’s DP Merrill-series benefit from several performance and stability improvements. Click through for details. 

News: Digital Photography Review (dpreview.com)

 
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Sigma 18-35mm F1.8 DC HSM available in July for around $799

14 Jun

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Sigma has announced its 18-35mm F1.8 DC HSM Art lens for APS-C DSLRs – the world’s first constant F1.8 zoom -will be available from July at a cost of around $ 799. The lens covers a 27-52.5mm equivalent range, and will be available in Canon, Nikon and Sigma mounts. The lens will offer the depth-of-field equivalent of a constant F2.7 on full-frame, and allow the use of lower ISO settings in low light, which may under-cut the need for some photographers to change formats.

News: Digital Photography Review (dpreview.com)

 
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