ver many years Sigma struggled to take off in the fast standard zoom arena for APS-C DSLRs. That segment had been dominated by the Tamron AF 17-50mm f/2.8 (VC) with its highly attractive price/performance ratio and the all mighty but expensive OEM offerings (Nikon AF-S DX 17-55/2.8 and Canon EF-S 17-55/2.8 IS) owning the quality crown. However, with the release of the AF 17-50mm f/2.8 EX DC HSM OS in 2010, Sigma finally offers a lens that is able to compete in this arena.
That alone may not be all THAT exciting - we've seen many fast standard zoom lenses by Sigma come and go - but this one is a bit more special. Within the recent years, Sigma announced a couple of lenses featuring their new FLD glass and the new 17-50mm f/2.8 OS is among them. FLD glass has an optical characteristic similar to fluorite glass. Such glass elements can be used to compensate optical aberrations (defects) more efficiently than conventional "special" elements such as Sigma's more commonly used SLD glass. We were already very impressed by the performance of the Sigma AF 8-16mm f/4.5-5.6 DC HSM which also benefits from FLD elements so there's some well founded hope that the AF 17-50mm f/2.8 EX DC HSM OS stands out from the ordinary as well.
So, let's have a look at how the lens performs on our current DX test camera, the Nikon D7000.
No flash? No problem. A new imaging sensor could soon make it possible for photographers to take clear, sharp photos, even in dim lighting.
Created by a team of researchers at Nanyang Technological University (NTU) in Singapore, the new sensor is highly sensitive to both visible and infrared light, which means it could be used in everything from the family Nikon to surveillance and satellite cameras.
The sensor, which is 1,000 times more sensitive to light than the imaging sensors of most of today's cameras, gets this high photoresponse from its innovative structure.
It's made of graphene, a super strong carbon compound with a honeycomb structure that is as flexible as rubber, more conductive than silicon and which resists heat better than a diamond.
Nikon offers several wide-angle zoom lenses. Most of these target professional users and consequently deliver very good if not exceptional performance. However, these lenses are also quite expensive and because of that usually not an option for amateurs.
There is an affordable Nikon wide zoom, though, the Nikkor AF-D 18-35mm f/3.5-4.5. Unfortunately, this lens looks a little outdated today (for example due to the lack of AF-S) and, what's maybe more important, it shows rather mediocre performance on modern digital FX cameras.
So, with the D600 now expanding Nikon's FX camera portfolio into the consumer segment, the pressure rose to update this lens and offer a modern and attractive wide angle zoom for current or future FX users.
As a result, the Nikkor AF-S 18-35mm f/3.5-4.5 G ED, was announced in January 2013. It offers a modern silent-wave AF drive and an update optical construction, now featuring 2 ED and 3 aspherical elements. Let's have a look at how the lens performs on our current FX test camera, the Nikon D3x.
Pentax Announced the K500, K50 DSLR Cameras and Q7 Mirrorless Camera ... PR Web (press release) Pentax Announced the K500, K50 DSLR Cameras and Q7 Mirrorless Camera, Available for Pre-Order at B&H Photo Video.
Note the photographs themselves were not necessarily taken in 2012, they just happened to be featured as a POTD this year. The pictures are also listed in reverse chronological order. There is no ranking amongst the photos :).
When you’re considering what to invest your money into in regards to camera equipment what comes to mind? Some may say the camera body, but with technology changing moment to moment the body is one of the most disposable pieces of a camera rig. At best you may be able to get three to four good years before it’s time to replace it. If you’re talking a DSLR body, expect to lose 50% of what you paid for it if you resell it
In going through a dry run for a shoot we were prepping for, I realized that the ALZO DSLR Video HDMI and Stereo AUDIO Cable Kit I was using could be a useful tip for some. These HDMI and Stereo Audio Cables have a right angle connector offset to keep the ports on your camera clear. The shortened cord length provides minimal excess to prevent extra feet of dangling cables....