YOKOHAMA (JAPAN) -Japanese lens and camera maker Sigma has unveiled its first mirrorless cameras, the sd Quattro and sd Quattro H, and two new lenses at the four-day CP+ Camera and Photo Imaging Show 2016 which opened on Thursday.
The two cameras sport the same body design, but have different image sensors.
The sd Quattro has a Sigma Foveon X3 APS-C image sensor with a crop factor of 1.5x, while the sd Quattro H has a APS-H Foveon X3 image sensor with a crop factor of 1.3x.
Sigma's Foveon image sensor differs from conventional image sensors in that its red, green and blue sensors are stacked on top of one another. This results in better colour resolution. In conventional image sensors, the three colour sensors are placed side by side, resulting in lower image resolution.
The sd Quattro's APS-C image sensor has the equivalent of a a 39-megapixel sensor in traditional cameras, whereas the sd Quattro H's APS-H image sensor is the equivalent of a 51-megapixel sensor.
The two cameras are expected to retail in Singapore in June, but their prices have yet to be confirmed.
Sigma also unveiled the world's first telephoto zoom lens with a constant f/1.8 aperture, dubbed the 50-100mm f/1.8 DC HSM Art APS-C lens. Most telephoto lenses have a constant aperture of f/2.8.
With a 35mm equivalent of 75-150mm due to APS-C image sensor's 1.5x crop factor, this lens works fast even under low light conditions.
It will be available in Singapore in April for about $1,588.
Sigma's second new lens is the 30mm f/1.4 DC DN Contemporary, designed to be the "first affordable F1.4 performance lens for the mirrorless market", it said.
The lens will be offered in Micro Four Thirds and Sony E-mount varieties, and will be available next month for $488.
At the show, Sigma also announced an adaptor for Sony E-mount cameras. The new MC-11 mount converter allows Sigma's recent SA- and EOS-mount lenses to be used on the Sony A7 and A6000 cameras.
The MC-11 does not disable the auto-focus function of the lens, unlike many other converters. It will go on sale sometime next month for $368.