Sigma Announces Protective Lens Made of Clear Glass Ceramic
Sigma has created an all-new protective filter, the Sigma Water Repellent (WR) Ceramic Protector, using Clear Glass Ceramic with water and oil repellent coating. This is the first filter to use such a material in its construction. It promises both lighter weight and higher strength than normal protective filters with minimal effects on transmittance and sharpness.
It will be available in common filter thread sizes between 67mm and 105mm. See the press release below for more info, or take a look at it on their website at: http://www.sigmaphoto.com/wr-ceramic/
SIGMA CORPORATION ANNOUNCES WORLD'S FIRST PROTECTIVE LENS MADE OF CLEAR GLASS CERAMIC
New scratch- and shock-resistant material provides protection for investment
RONKONKOMA, NY — December 16, 2015 – Sigma Corporation of America, a leading DSLR lens and camera manufacturer, today announced the new Sigma Water Repellent (WR) Ceramic Protector, a lens filter that features new Clear Glass Ceramic material and provides enhanced protective qualities. Pricing and availability is not yet available.
This shock- and scratch-resistant Clear Glass Ceramic was developed specifically for Sigma in partnership with a glass manufacturer. Made with a special heat treatment that evenly precipitates microcrystalline spinel throughout the materials, the Clear Glass Ceramic is 10 times stronger than a conventional protective filter and three times the strength of a chemically strengthened filter. The lens protector also contains WR coating, which repels water, dust and oil, and allows fingerprints to be easily removed. This enhanced protection helps to preserve the lens and ensure long-term, top-notch image quality.
“The Sigma WR Ceramic Protector is the latest example of Sigma’s dedication to innovative and first-to-market photography equipment,” said Mark Amir-Hamzeh, president of Sigma Corporation of America. “The new Clear Glass Ceramic protector is the first of its kind and the strongest material used in the industry. It will enable photographers to safeguard their lenses, while maintaining the impressive sharpness offered by high-quality glass, like our Global Vision line of lenses.”
Key features of the Ceramic Protector include:
- Scratch-resistant – Sigma’s Clear Glass Ceramic offers a Vickers hardness number of 700HV. The strength of the Clear Glass Ceramic is much stronger than chemically strengthen glass and is; 10 times stronger than conventional filters
- Thinner and lighter – This new protector is up to 50 percent thinner and is up to 30% lighter than previous Sigma filters
- High transmittance – Sigma’s Clear Glass Ceramic offers very high transmittance, making it ideal for use as optical glass
- Water- and oil-repellent coating – The water repellent coating reflects only 0.24 percent of visible light, thereby minimizing flare and ghosting. Its ability to repel both water and oil is also excellent, with water drops bouncing right off, and fingerprints easily to remove
This filter is offered in the most popular filter thread sizes, and is compatible with all Sigma lenses and other lenses that accept front filter threads that are 67mm-105mm diameters. Compatible lenses in Sigma’s Art line include: 35mm F1.4 DG HSM, 30mm F1.4 DC HSM, 18-35mm F1.8 DC HSM, 24-35mm F2 DG HSM, 24-105mm F4 DG OS HSM, 50mm F1.4 DG HSM, 24mm F1.4 DG HSM, 19mm F2.8 DN, 30mm F2.8 DN and 60mm F2.8 DN. Compatible lenses in the Sports line include the 120-300mm F2.8 DG OS HSM and 150-600mm F5-6.3 DG OS HSM. Compatible lenses in the Contemporary line include the 17-70mm F2.8-4.0 DC OS HSM, 18-200mm F3.5-6.3 DC OS HSM, 18-300mm F3.5-6.3 DC OS HSM and the 150-600mm F5-6.3 DG OS HSM. As with all of Sigma’s lenses, the filter is checked with Sigma’s own Modulation Transfer Function (MTF) measuring system, “A1,” in the company’s factory in Japan.
May 17, 2017
May 17, 2017
May 17, 2017
May 11, 2017
|Waffles with fruits by Coolinarka|
from Food photography (desserts)
|Vestrahorn Frozen Reflection by Will B Milner|
from Ice cold
As summer really gets going over here in the Northern hemisphere, the team at Imaging Resource has put together a list of the best cameras for backpacking.
The Ukrainian Parliament banned statues of Lenin in 2015. Two years later, the monuments no longer adorn public buildings or stand watch over town squares, but they're still there.
If you had to choose one camera to bring along for the ultimate West coast road trip, what would it be? DPR's Sam Spencer choose the X100F. Read more
The a9 boasts impressive capability. As more examples of it in practice pour in, Sony's claims hold up. Watch the a9 track and maintain focus on a rapidly approaching basketball.
Last week, more than a million tonnes of Californian coastline slid into the ocean, taking part of Highway 1 with it. Check out the remodeling in photos taken before and after the landslide.
Even after eighteen months of reviewing the latest, greatest, shiniest and must-buy-me-est new gear, DPReview staffer Carey Rose has continued to use older DSLR cameras for his freelance work. But now, that might be changing. Read more
Sony is the world's leading mirrorless camera brand but remains third for ILCs overall, it's said in a presentation to investors. A focus on high value cameras and lenses should boost operating income, it says. Read more
It's nicknamed the 'Cycloptic Mustard Monster,' and is a 3D printed medium format camera. Read more
The new NanGuang LED lights are battery powered and come with accessories including filters and diffusers.
Have you been telling yourself, "Hey, I really need one of those 8K displays?" A video about Dell's new 8K monitor shows you what to expect. Is it really that much better?
Tamara Lackey, a Nikon ambassador USA and pro shooter, discusses embracing self-consciousness as a means of connecting with subjects.
There's a new Spiderman movie coming out and the poster been generating a lot of online chatter. Mostly about how it looks like the creation of a fevered teenager that just discovered Photoshop.
An honest defense of the system's merits, with photos as proof.
Copyright disputes are no fun at all. 'Binded' is a new startup that aims to simplify the process of registering - and enforcing - copyright for photographers. Read more
Not everyone wants to pay a premium for a long zoom camera. Thankfully, there are many reasonably priced cameras available, though they won't offer the same image quality as enthusiast models. In this updated roundup we look at big zoom cameras with more consumer-friendly price tags. Read more
Think Tank Photo has updated two of its popular bag lines with improvements to functionality. Read more
We’ve all seen Bob Jackson’s Pulitzer Prize winning photo, but there's another.
The sample footage looks good.
It will automatically pick the best camera settings depending on shooting conditions. It even promises enhanced functionality for your camera, like exposure and focus stacking. It already supports many cameras from Canon, Fuji, Nikon and Sony. Read more
As if $13,950 wasn’t enough to pay for a special edition lens, the Leica Store in San Francisco is offering a prototype of said lens for $24,995. Read more
Make those old photos disappear without deleting them forever.
Firmware updates enable 10 fps shooting with adapted A-mount lenses, and faster startup times and better compatibility for 20 fps shooting when using native lenses on the a9.
Fujifilm has released firmware updates for its camera models X-T2, X-Pro2, GFX 50s, X-T20, X100F and X-T1 and updates to three of its software products.
A 22 year-old Romanian photographer uses his DJI Phantom 4 drone to capture unique perspectives of the city where he now lives.
What's it like to ride the waves with champion surfer Kelly Slater? This VR video from Teton Gravity Research gives you a taste.
When Nikon released the full-frame D3 in 2007, it changed the professional photography industry. In this week's Throwback Thursday, Barney remembers a legend. Read more
The new stuff should have better red hues, improved sensitivity and finer grain - but don't worry - will still shift blues to green, greens to purple and yellows to pink.
Ricoh has introduced a new rugged compact camera with a 16MP CMOS sensor, 28-140mm lens, 2.7" LCD and built-in LED macro lights. Read more
This compact drone can shoot HD video using a 2-axis stabilized 12MP camera. Read more
The new Prynt Pocket can print a photo directly from their iPhone simply by inserting the phone into the printer, then snapping a photo. Each print will cost about 50 cents. Read more