June 2nd, 2016

Sigma Issues Alert for Several Art Lenses and Canon’s 1D X Mark II


If you own a Canon 1D X Mark II and plan on using some of Sigma’s Art lenses, read on.

Sigma UK has issued an advisory for three lenses–the 20mm F1.4 DG HSM Art, the 35mm F1.4 DG HSM  Art and the 85mm F1.4 EX DG HSM.

When mounted to a 1D X Mark II and when using center-weighted average metering or evaluative metering those lenses can result in improper exposure.

A firmware update is in the works to correct the issue.

February 24th, 2016

Sigma Is Now Making Mirrorless Cameras with Super High Resolutions

sdquattroheadWhile the CP+ Show in Japan brings forth its usual share of new product announcements, it also has a few surprises. Chalk this one up in the later column. Sigma is entering the mirrorless camera market with a pair of models using its Foveon X3 image sensor technology.

The sd Quattro and sd Quattro H will share mostly identical features and will accept Sigma’s Global Vision lenses (Art, Contemporary and Sport).

The big difference between the models will be their image sensors.

The sd Quattro will use the same Foveon X3 APS-C-sized sensor that’s found on the company’s line of Quattro advanced compact cameras (you can read a bit more on how the tech works here). That sensor produces the equivalent of a 39-megapixel Bayer-pattern sensor.

The sd Quattro H uses a similar approach but a larger, APS-H sized sensor that produces the equivalent of a 51-megapixel image.

The native ISO range of both sensors is 100-6400.

You’ll be able to coax more dynamic range and resolution from your images using a new “Super-Fine Detail” that captures seven different exposures with one shot and merges them into a single image.

The new mirrorless cameras will use a combination of phase and contrast detection AF with 9-points and a variety of modes including movement prediction, face detection and free movement. Low light focusing is supported down to -1EV.

Additional shared features include:

  • 1/4000 max shutter speed
  • Focus peaking
  • Dust and splash proof build
  • 3-inch display
  • 2.3-megapixel viewfinder with close to a 100 percent field of view

Pricing and availability weren’t announced, but you can take a gander at the Quattro below.
sigmasd sigmaopen top-1 topangle back

February 23rd, 2016

Sigma Intros 50-100mm f/1.8 Art & 30mm f/1.4 Contemporary Lenses

Sigma has added a new APS-C  lens to its popular Art portfolio, plus a new mirrorless lens in its Contemporary family.


Sigma 50-100mm F1.8 DC HSM Art
The new Sigma 50-100 F1.8 offers a 75-150mm  35mm equivalent focal length. It maintains a constant f/1.8 aperture throughout the zoom range. The new Art lens incorporates a new Hyper Sonic Motor which Sigma says is 30 percent slimmer than previous motors to drive fast, precise autofocusing.

It has both inner focusing and zoom, a tripod socket and accepts 82mm filters. It has a minimum focusing distance of 37.4 inches and will be sold in Canon, Nikon and Sigma mounts.

Pricing and availability weren’t announced.

Screen Shot 2016-02-22 at 2.28.26 PM

Sigma 30mm F1.4 DC DN Contemporary
Mirrorless camera owners will also get some fast glass. The 30mm f/1.4 features an AF stepping motor for improved autofocusing during video. It’s built using one aspherical element and one double-sided aspherical element–a combination that Sigma claims helps deliver image quality “comparable to the Art line.”

The lens has a minimum focusing distance of 11.8 inches and accepts 52mm filters. It will be sold in Sony E and Micro Four Thirds mounts.

Pricing and availability weren’t announced for this lens either.

February 10th, 2015

Sigma Releases New 24mm Art Lens, DP Quattro Series Camera






pphoto_dp0_quattro_side_slanting-large-2Sigma announced the fourth member of its DP Quattro series of digital cameras, plus a new 24mm Art lens in advance of the CP+2015 show in Japan.

The DP0 sports a fixed 14mm F4 lens (21mm, 35mm equivalent). All other features will be identical to the previous models in the lineup.

The DP0 incorporates a 29-megapixel APS-C-sized Foveon X3 Quattro image sensor. The Quattro sensor features a proprietary three-layer design meant to replicate how film emulsions capture red, green and blue light. Working in tandem, these three layers create Sigma’s equivalent of a 39-megapixel image, and Sigma’s True III image processor crunches the data to output an image that the company claims delivers truer-to-life colors and more realistic images than competing sensor designs.

Beyond the sensor, the DP0 delivers 14-bit RAW image capture and a sensitivity range of ISO 100 to 6400. The body design marries a thin, panoramic frame with a prominent grip that extends from the back of the camera, giving the DP0 a particularly distinctive look.

Pricing and availability on the DP0 were not announced.


401_24mm_art-150dpi-angledSigma also announced a new member of its Art lens family. The new 24mm F1.4 Art  lens is designed for full-frame DSLRs. It features  nine rounded aperture blades and a maximum magnification of 1:5.3. The  minimum focusing distance is 9.8 inches.

The lens incorporates both “F” Low Dispersion (FLD) glass and Special Low Dispersion (SLD) glass in  15 elements in 11 groups. According to Sigma, this construction minimizes chromatic aberration of magnification especially in the edge of the image field.

By placing aspherical elements in the rear of the lens, Sigma said it was able to improve performance when shooting wide open, keeping distortion, flare and chromatic aberration to a minimum.

A full-time manual focusing mechanism lets you switch into manual focusing during autofocus by rotating the lens ring.

Pricing and availability for the new 24mm Art Lens were not announced.

January 6th, 2014

CES 2014: Sigma Intros 50mm F/1.4 and 18-200mm Lenses

Sigma-50mm-1-1.4-DGSigma introduced two new lenses at the Consumer Electronics Show (CES) in Las Vegas today. The company says the 18-200mm F3.5-6.3 DC Macro OS HSM is “improved and redesigned” from the previous model, while the 50mm F1.4 DG HSM has been “reengineered and redesigned” from its predecessor.

Pricing and availability has not been announced for either lens, which, as per usual, are expected to be available in a variety of lens mounts including for Canon and Nikon digital SLRs. More info in the press release after the jump.


August 1st, 2013

Sigma Announces Lens Mount Conversion Service (and 4-year warranty)

Sigma18_35MountIf you’ve considered changing up your camera system but are too heavily invested in lenses to do so, Sigma may have the perfect solution to break the bond you have to one brand or another. That is, if your optical stash includes lenses from Sigma’s Global Vision line.

Beginning September 2, 2013, Sigma Corporation of America will offer a fee-based lens mount conversion service for its Global Vision lenses. As the name implies, the company will change out the current mount for a mount of your choice, as long as Sigma makes that particular lens for the mount requested. DSLR mounts include Canon, Nikon, Pentax, Sigma and Sony. But Sigma hasn’t forgotten about the mirrorless interchangeable lens camera users among us, who can have their lenses converted to Micro Four Thirds or Sony E-mounts (again, as long as the requested lenses are currently available with those mounts).

The full story is now on PDNOnline’s Gear page.

April 18th, 2013

Sigma Announces World’s First F1.8 Constant Aperture Zoom

PPhoto_A_18_35_013_VerticalIn a very exciting bit of news for photographers who live and breathe in the low-light world, Sigma today announced a 18-35mm F1.8 DC HSM lens. A constant f/1.8 zoom lens is one and a third stops faster than the f/2.8 lenses that we normally consider a “fast” zooms. Sigma is claiming that their 18-35mm F1.8 DC HSM Art lens is the market’s first zoom lens to achieve a maximum aperture F1.8 throughout the entire zoom range.

The 18-35mm is the latest addition to Sigma’s Art line of lenses, one of their new “Global Vision” products. The Global Vision lenses are categorized by use into one of three groups: Art, Contemporary and Sports. The Art category is supposed to deliver “high-level artistic expression through sophisticated and abundant expressive power.” We’re not sure what “abundant expressive power” means. But if it means fast zoom lenses, we’re all in.

Our full story on the Sigma news, including specifications, info on handling and more is on the Gear section of PDNOnline.