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By admin, on July 30th, 2013
According to latest Rumors Sigma will start free mount conversion service, it will change the mount on your Sigma lens to a new mount, So if change you camera bodies from Canon to Nikon OR Nikon to Canon then you don’t have to buy new Sigma lenses again. The service is for Sigma Lenses ONLY , it will not change your Canon lenses mount to Nikon…
src-PhotoRumors
By admin, on April 30th, 2013
Sigma 35mm F1.4 DG HSM and 60mm F2.8 DN lenses for Sony A-mount, Pentax
Sigma 60mm F2.8 DN for Micro Four Thirds and Sony E-mount Coming on May 17, Estimated retail price of around 19,800 yen / $203.27.
See the full translated version via google
We have to provide information about the release date and price (Sony A-mount, Pentax) of 35mm F1.4 DG HSM and F2.8 DN 60mm Sigma from readers.
Released in Japan of Sigma 60mm F2.8 DN May 17. Micro Four Thirds and Sony E-mount will be released at the same time. Estimated retail price of around 19,800 yen.
Release Date Sony A mount for Sigma 35mm F1.4 DG HSM, in Japan of Pentax K mount for May 17. Estimated retail price of around 99,800 yen.
This is the information from the person who can be trusted. 35mm F1.4 DG HSM Pentax user long-awaited Sony and users seem to be released after half a month a little. Estimated retail price (mass store prices) is likely to be to the same extent as for Canon and Nikon.
In addition, F2.8 DN 60mm of mirror-less for that had been developed previously announced also seems to be released on the same day. This one seems to be the price quite affordable and ¥ 20,000 before and after.
src-digicam.info
By admin, on April 18th, 2013
 Sigma officially announced the rumored 18-35mm f/1.8 DC HSM lens, world’s first wide-aperture lens to offer an aperture of F1.8 throughout the zoom range, the lens captures sharp images even at wide end with F1.8 aperture,the lens is designed for APS-C format DSLRs and SLT,
Sigma 18-35mm f/1.8 Key Features
- 18-35mm, 27.5-52.5mm equivalent
- Constant f/1.8 aperture – f/16 minimum
- 9 rounded diaphragm blades
- 17 elements in 12 groups
- Special Low Dispersion (SLD) glass
- A – Art series lens
- 72mm filter thread
- Internal focusing and zooming
- Super Multi-Layer Coating
- AF/MF switch on side
- 28cm closest focus distance
- 1:4.3 maximum magnification ratio
- Hyper Sonic Motor (HSM)
- 78x121mm (diameter x length)
- 810g
“To develop a large aperture zoom lens with a maximum aperture of F1.8, it was necessary to solve a variety of technical challenges.” – Sigma
To develop a large aperture zoom lens with a maximum aperture of F1.8, it was necessary to solve a variety of technical challenges. As the f-number decreases, so does the depth of focus, making it extremely difficult to minimize spherical aberration, axial chromatic aberration, astigmatism and field curvature. To minimize astigmatism across the zoom range, Sigma leveraged its extensive experience in reducing optical aberrations and designing advanced structural elements. Sigma gained this know-how when it developed such super wide angle zoom lenses as the SIGMA12-24mm F4.5-5.6 II DG HSM and SIGMA 8-16mm F4.5-5.6 DC HSM. Ongoing technological innovation at Sigma’s Aizu Factory has also contributed to further enhancements in lens production. Advanced production technologies have made possible a large-diameter molded glass aspheric lens, which teams up with SLD (Special Low Dispersion) glass elements to optimize power distribution and minimize axial chromatic and spherical aberration and field curvature. Thanks to its hard-earned knowledge of lens design and advanced lens manufacturing techniques, Sigma has succeeded in creating a lens that offers F1.8 throughout the zoom range, as well as exceptional image quality at wide open aperture.
Sigam F1.8 Zoom Lens MTF Chart
Based on MTF chart, the lens look really very sharp at wide and tele-end.
Sigma 18-35mm F1.8 Lens Major Specification
| Lens Construction |
17 elements in 12 groups |
| Minimum aperture |
F16 |
| Filter size |
φ72㎜ |
| Angle of view (35mm equivalent) |
76.5° – 44.2° |
| Minimum focusing distance |
28cm/11.0in. |
| Dimensions (Diameter x Length) |
φ78㎜x 121mm/3.1in. x 4.8in. |
| Number of diaphragm blades |
9 (Rounded diaphragm) |
| Maximum magnification ratio |
1：4.3 |
| Weight |
810g / 28.6oz. |
No information about the pricing is available yet, but we will update you soon with latest price and Sigma 18-35mm f/1.8 DC HSM lens sample images, stay with us on G+, twitter and Facebook.
By admin, on April 18th, 2013
 Sigma is rumored to announce 18-35mm f/1.8 DC HSM lens zoom lens very soon, the lens will feature a constant F1.8 aperture through-out the zoom range, take a look at the detailed specification below
- Designed for APS-C based DSLR cameras
- Ultrasonic autofocus (HSM)
- 9 aperture blades
- Type A (Art), which guarantees quality materials, metal bayonet
- Filter size: 72mm
- Minimum aperture: f/16
- Lens construction: 17 elements in 12 groups
- The maximum magnification ratio: 0.23x
- Weight: 810 grams, length: 121mm
- Angle of view: 76.5 – 44.2°
- Internal zoom and focusing
- Minimal focusing distance: 28cm
This lens is designed for crop factor APS-C DSLR cameras, expected to be announced in next few months.
Source-fotoradce.cz
By admin, on December 26th, 2011
 Sigma will introduce new products on January 10th, 2012. See the latest banner on Sigma website.
Few days In an interview sigma said “They are working on M43 mount lenses and APS-C format Foveon Sensor Camera”
highlights / Summary of the interview.
- Sigma DP series will be expanded on 2012
- Development of APS-C format SD series
- M43 mount lenses Coming
News src – photorumors
By admin, on December 19th, 2011
 Japanese Magazine “Impressjapan” published exclusive interview with eight camera manufacturers in this PDF, The print issue will arrive in January,
We are publishing the highlights / Summary of the interview.
Olympus: Olympus Imaging Marketing Division Minister Ogawa Said (See more)
- He sincerely apologized for the current trouble at Olympus.
- Currently developing a new series of micro four third camera (Not Pen) with a new type of viewfinder(hybrid?). The Upcoming Mirrorless Camera will be a based on a brand new concept.
- When asked about Four Third Camera, Olympus is developing E-5 successor
Canon: Canon Imaging Rong Said Canon will announce its mirrorless and high End Compacts in 2012.
The Best part of the interview was Canon confirms Mirrorless System is coming in 2012, See more: on October 2011 we have published News/Rumor Canon Mirrorless is coming on 2012. See more Canon Rumor
Sigma Corporation President Said: They are working on M43 mount lenses and APS-C format Foveon Sensor Camera
- Sigma DP series will be expanded on 2012
- Development of APS-C format SD series
- M43 mount lenses Coming
Nikon
Nikon Imaging Marketing Division Marketing Manager said: D700’s successor as the solution for high-pixel high-strength, D3 successor machine for high-speed sense is coming
- the D3 and D700 successor , Nikon D4 is optimized for High Sensitivity and Nikon D800 for Higher MP.
- to optimize the use of a portable camera
Sony Hong Said Small Lens for NEX camera , We know that E-mount lenses have been large considering the size of the NEX bodies, So We may some pancakes or PowerZoom Lens from Sony in 2012,
- Small E-mount lenses for NEX cameras
- Introduction of electronic shutter in upcoming camera.
- A 100 megapixel sensor from Sony in 2012
Fuji: Fujifilm Higuchi Wu Said New Mirrorless with an APS-C Sensor will arrive in 2012,with the X100 and X10 the same,
- will take the high route to the showdown (Mirrorless coming 2012)
- AF speed is quite fast, and future plans are low-end models
- as the solution of power level will exceed the full-size
Pentax Said R&D is going on for Full Frame and 645D mirrorless
- All upcoming “DSLRs” of Pentax will have 100% field of view coverage, even for entry level models;
- The FF and 645D mirrorless is only the personal thinking of the Head himself!
Ricoh: Ricoh Said we will see a B&W dedicated compact camera in 2012, Zoom will be added to high end compact Ricoh GR DIGITAL.
- In 2012 Pentax lens unit are coming for Ricoh GXR Interchangeable Unit Digital Camera System.
News src – xjrumo
By admin, on July 19th, 2011
 Yes, the Sigma SD1 can do Live view without any physical modification or upgrade, at a recent event in Japan, Sigma representatives confirmed that the latest at a recent event in Japan, Sigma representatives confirmed that the latest SD1 camera can do LiveView
“We can add the feature, however the hard part is to ensure that the camera operate in a stable manner with that addition. However, this is a high priority for us and we plan to take this on as soon as we finish working through some of the issues that we have pending right now. When and if we actually make this happen is up in the air at this point.”
src- Photorumors | dpreivewforum
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