
Sigma announced a new 17-50mm f/2.8 EX DC HSM lens for Sony and Pentax DSLR cameras. The old 17-50mm f/2.8 EX DC OS HSM lens ($669) will be discontinued.
Specification (for Sony mount):
- Lens Construction:17 Elements in 13 Groups
- Angle of View:79.7-31.7 degrees *Number of blades: 7 pcs (Rounded diaphragm)
- Minimum Aperture: f/22
- Minimum Focusing Distance: 28cm (11in.)
- Maximum Magnification: 1:5.0
- Dimensions: Diameter 83.5mm × Length 91.8mm / 3.3in. × 3.6in.
- Weigh: 550g (20.3oz.)
- Barcode#: Sony: 00-85126-92863-6, Pentax: 00-85126-92862-9
- Optional accessories:
- Sigma DG UV 77mm : 00-85126-92375-4
- Sigma DG WIDE CIRCULAR PL 77mm : 00-85126-92386-0
- Lens hood LH825-03 (supplied) : 00-85126-91680-0
Press release:
The Sigma Corporation is pleased to announce the new Sigma 17-50mm f/2.8 EX DC HSM for Sony, and for Pentax
This large aperture standard zoom lens is designed for digital SLR cameras and covers a focal length from 17mm wide angle. It is a compact lens with an overall length of just 91.8mm (3.6”). This lens offers a large aperture of f/2.8 throughout the entire zoom range, making it ideal for many types of photography such as portraiture and landscapes. Two FLD (“F” Low Dispersion) glass elements, which have performance equal to fluorite glass, compensate for color aberration. Two glass mold and one hybrid aspherical lens, provide excellent correction for field curvature and astigmatism. The Super Multi-Layer Coating reduces flare and ghost. This lens has superior peripheral brightness and provides sharp, high contrast images even at the maximum apertures. High image quality is assured throughout the entire zoom range. Incorporating HSM (Hyper Sonic Motor), the lens provides fast and quiet AF. The lens has a minimum focusing distance of 28cm (11”) throughout the entire zoom range and a maximum magnification ratio of 1:5. The rounded 7 blade diaphragm creates an attractive blur to the out of focus images. The inner focusing system eliminates front lens rotation, making the lens particularly suitable for use with the supplied petal-type lens hood and circular polarizing filters.
Sony 4K home cinema projector coming in January for £18,000:
In a recent interview, the Canon 1Dx developers mentioned medium format camera is not completely out of the picture:
"While we hear the voices, we want to see what the actual sales numbers will be for the 1D X and so determine how many 10,000s of customers we might be losing if we do not introduce a higher resolution camera and if the projected profitability of a higher resolution 24x36 mm format camera will justify development, marketing, and manufacturing investments , or if there is a sustainable market for the even greater costs of development, marketing, and manufacturing medium format cameras and lenses - an area where we have no internal expertise."
Related posts:
- Sigma patents 18-50mm f/3.5-5.6 lens for mirrorless APS-C camera
- The latest lens patents from Sony, Sigma, Panasonic, Pentax and Canon
- Pentax got a new 25mm f/4 wide angle lens for their medium format 645D camera
- Sigma 50mm f/2.8 EX DG OS HSM Macro lens patent
- Pentax D FA 645 25mm f/4 lens (medium format) to be announced soon

14 Comments
I would switch to canon for MF
That’s kinda sad. None of their lenses have large enough image circles to cover medium format, so you are saying you would switch to a product that both you and Canon know nothing about because it hasn’t even been designed yet, much less planned for commercial production. Troll.
” or if there is a sustainable market for the even greater costs of development, marketing, and manufacturing medium format cameras and lenses “.
The post that you replied probably refers the sentence above and clearly states the opinion that many people will seriously consider buying the unannounced product given the quality of canons current product line.
This is very well suited for a rumors site whereas you post sounds more like trolling and actually much sadder.
Regards,
M.C.
Indeed, Anon is being the Ahole.
MF = Manual Focus
Because auto focus sucks on Canons?
They dont actually say what you think, about medium format. No medium format coming.
The bigger the sensor the better the image quality. Since Leica can produce a full frame sensor in a body half the size of a 5d, Canon should be able to produce a Leica S size sensor camera that is the same size at the current 5d.
Knowing Canon’s love for über-sized camera bodies (a-la gargantuan 1D series), Canon’s MF camera would probably require wheeled tripod just to be able to lug it around.
4K large sensor cameras are coming
Canon definitely has the know-how, all they need is the desire.
Maybe ‘blad will enter 35mm market.
They did once with the X-Pan
yeah and nikon will release a new rangefinder camera and a D800 and D4 by christmas, Carlsberg don’t do camera releases but if the did well they would be the best in the world!
canon mf only in my dreams what would the price be the only good thing is my lenses would fit