Sigma (company)
| Sigma Corporation
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| legal form | Kabushiki-gaisha (joint stock company) |
| founding | September 9, 1961 |
| Seat | Kawasaki (Kanagawa) , Japan |
| management | Kazuto Yamaki |
| Number of employees | 1,135 (2014) |
| sales | 33.4 billion yen (as of August 2014) |
| Branch | Photo and optical industry |
| Website | Homepage Sigma Germany |
KK Sigma ( Japanese 株式会社 シ グ マ , Kabushiki-gaisha Shiguma , English Sigma Corporation ) is a Japanese manufacturer of lenses , digital cameras and flash units .
All Sigma products are manufactured in the company's own Aizu factory in Bandai (Fukushima) . In addition to the company headquarters in Kawasaki (Kanagawa) , Sigma has offices in the USA , Hong Kong , Singapore , Germany , France , England and the Netherlands .
A special technical feature of Sigma's digital cameras is the use of the Foveon X3 image sensor. The company also makes compatible products for Canon , Nikon , Pentax , Sony , Olympus and Panasonic cameras .
history
Sigma was founded in Tokyo on September 9, 1961 by Michihiro Yamaki . He was 28 years old at the time and worked in the optical industry while studying. In addition to his role as CEO at Sigma, Yamaki has also worked for other companies such as B. The Japan Photographic Enterprises Association , Japan Machinery Design Center , Japan Optomechatronics Association , Photographic Society of Japan, and Japan Camera Industry Institute . Yamaki has received numerous awards such as the “Person of the Year” award from The Photoimaging Manufacturers & Distributors Association (PMDA) , the “Hall of Fame” award from the International Photographic Council (IPC) and the “Golden Photokina Pin”.
After the Sigma Research Center was built in Setagaya-ku , another office building was built in the city of Komae-shi in 1965 . In March 1968 the company was converted into a stock corporation, in 1970 the official name was changed to Sigma Corporation . The first Aizu Integrated Factory (Sigma's production facility) was completed in November 1973, and the second was built ten years later.
In 1979 a German branch was founded under the name Sigma (Deutschland) GmbH in Rödermark , between Frankfurt am Main and Darmstadt . The subsidiary was awarded the “Top Job” seal of approval in Duisburg-Nord in 2012 and is considered one of the best employers in Germany.
In 1983 the subsidiaries Sigma Hong Kong , one year later Sigma America , 1991 Sigma Benelux and Sigma Singapore and 1993 Sigma France were established. There has also been a branch in Great Britain since 2000 and a subsidiary in China since August 2013 .
Company founder Michihiro Yamaki died on January 18, 2012 at the age of 78 from complications from liver cancer . His son Kazuto Yamaki took over the management of the company.
The headquarters of the Sigma Corporation is currently located in Kawasaki (Kanagawa) . The company has a total of 896 employees. In 2014 Sigma had total capital of 100 million yen and total annual sales of 33.4 billion yen.
Product history 35mm film
| model | Type | bayonet | lens | year | Shutter speeds |
|---|---|---|---|---|---|
| Mark-1 | SLR | М42 screw cap | - | 1976 | 1/1000 - Bulb |
| SA-1 ZoomMan | SLR | PK bayonet | - | 1983 | 1/1000 - Bulb |
| AF35D-TF | Compact camera | - | 36mm f2.8 | 1986 | |
| 35AF zoom | Compact camera | - | 35-70mm f3.5-6.7 | 1989 | 1/500 - 2 sec. |
| 28AF zoom | Compact camera | - | 28-50 mm f4.3-7 | 1990 | 1/500 - 2 sec. |
| 50AF zoom | Compact camera | - | 50-100mm f4.3-8 | 1990 | 1/500 - 2 sec. |
| ZOOM SUPER 70 | Compact camera | - | 35-70mm f3.5-6.7 | 1991 | 1/500 - 1 sec. |
| ZOOM SUPER 100 | Compact camera | - | 50-100mm f4.3-8 | 1991 | 1/500 - 1 sec. |
| SA-300 | SLR | SA bayonet | - | 1992 | 1/4000 - 30 sec., Bulb |
| SA-300n | SLR | SA bayonet | - | 1994 | 1/4000 - 30 sec., Bulb |
| SA-5 | SLR | SA bayonet | - | 1997 | 1/4000 - 30 sec., Bulb |
| SA-7 | SLR | SA bayonet | - | 2001 | 1/2000 - 30 sec., Bulb |
| SA-9 | SLR | SA bayonet | - | 2001 | 1/8000 - 30 sec., Bulb |
| SA-7n | SLR | SA bayonet | - | 2003 | 1/2000 - 30 sec., Bulb |
| SA-9QD | SLR | SA bayonet | - | 2003 | 1/8000 - 30 sec., Bulb |
Product history digital cameras
| model | Type | bayonet | lens | year | Crop | Image processor | Resolution in megapixels (output / effective / total) | Shutter speeds |
|---|---|---|---|---|---|---|---|---|
| SD9 | DSLR | SA bayonet | - | 2002 | 1.7 | Unknown | 3.4 / 10.28 | 1/6000 - 15 sec. |
| SD10 | DSLR | SA bayonet | - | 2004 | 1.7 | Unknown | 3.4 / 10.2 | 1/6000 - 15 sec. (In Extended Mode: 1/6000 - 30 sec., Bulb) |
| SD14 | DSLR | SA bayonet | - | 2007 (2006) | 1.7 | dual-core Blackfin ADSP-BF561 | 4.65 / 14.06 / 14.45 | 1/4000 - 30 sec., Bulb |
| DP1 | Compact camera | - | 16.6mm f4 | 2008 | 1.7 | TRUE | 4.65 / 14.06 / 14.45 | 1/1000 - 15 sec. |
| DP2 | Compact camera | - | 24.2 mm f 2.8 | 2009 | 1.7 | TRUE II | 4.65 / 14.06 / 14.45 | 1/2000 - 15 sec. |
| DP1s | Compact camera | - | 16.6mm f4 | 2009 | 1.7 | TRUE II | 4.65 / 14.06 / 14.45 | 1/2000 - 15 sec. |
| DP1x | Compact camera | - | 16.6mm f4 | 2010 | 1.7 | TRUE II | 4.65 / 14.06 / 14.45 | 1/2000 - 15 sec. |
| DP2s | Compact camera | - | 24.2 mm f 2.8 | 2010 | 1.7 | TRUE II | 4.65 / 14.06 / 14.45 | 1/2000 - 15 sec. |
| DP2x | Compact camera | - | 24.2 mm f 2.8 | 2010 | 1.7 | TRUE II | 4.65 / 14.06 / 14.45 | 1/2000 - 15 sec. |
| SD15 | DSLR | SA bayonet | - | 2010 (2009) | 1.7 | TRUE II | 4.65 / 14.06 / 14.45 | 1/4000 - 30 sec., Bulb (In Extended Mode: Max. 2 Min.) |
| SD1 | DSLR | SA bayonet | - | 2011 | 1.5 | Dual TRUE II | 14.8 / 46/48 | 1/8000 - 30 sec., Bulb (in extended mode: max. 2 min.) |
| DP1 Merrill | Compact camera | - | 19mm f2.8 | 2012 | 1.5 | Dual TRUE II | 14.8 / 46/48 | 1/2000 - 30 sec. |
| DP2 Merrill | Compact camera | - | 30mm f2.8 | 2012 | 1.5 | Dual TRUE II | 14.8 / 46/48 | 1/2000 - 30 sec. |
| SD1 Merrill | DSLR | SA bayonet | - | 2012 | 1.5 | Dual TRUE II | 14.8 / 46/48 | 1/8000 - 30 sec., Bulb (in extended mode: max. 2 min.) |
| DP3 Merrill | Compact camera | - | 50mm f2.8 | 2013 | 1.5 | Dual TRUE II | 14.8 / 46/48 | 1/2000 - 30 sec. |
| dp0 Quattro | Compact camera | - | 14 mm f4 | 2015 | 1.5 | TRUE III | 19.6 / 29/33 | 1/2000 - 30 sec. |
| dp1 Quattro | Compact camera | - | 19mm f2.8 | 2014 | 1.5 | TRUE III | 19.6 / 29/33 | 1/2000 - 30 sec. |
| dp2 Quattro | Compact camera | - | 30mm f2.8 | 2014 | 1.5 | TRUE III | 19.6 / 29/33 | 1/2000 - 30 sec. |
| dp3 Quattro | Compact camera | - | 50mm f2.8 | 2015 | 1.5 | TRUE III | 19.6 / 29/33 | 1/2000 - 30 sec. |
| sd Quattro | mirrorless system camera | SA bayonet | - | 2016 | 1.5 | Dual TRUE III | 19.6 / 29/33 | 1/4000 - 30 sec., Bulb (In Extended Mode: Max. 2 Min.) |
| sd Quattro H | mirrorless system camera | SA bayonet | - | 2016 | 1.3 | Dual TRUE III | 25.7 / 38.6 / 44.7 | 1/4000 - 30 sec., Bulb (In Extended Mode: Max. 2 Min.) |
Products
Sigma produces interchangeable lenses for camera systems from different manufacturers. Around four thousand lenses are manufactured every day in the company's own factory in Aizu . Sigma also manufactures digital SLR cameras with a proprietary Sigma-SA lens mount . Since 2008, Sigma has been the first manufacturer to offer a digital compact camera with a large image sensor in APS-C format, the DP1 . The digital cameras are equipped with the Foveon X3 - image sensor equipped; this sensor has hardly been used so far.
Cameras
Sigma SD1 Merrill
The Sigma SD1 Merrill is a digital single lens reflex camera with 46 effective megapixels (4800 × 3200 × 3 layers) and 44 recording megapixels (4,704 × 3,136 × 3 layers). The camera is equipped with a Foveon X3 image sensor, which - according to the manufacturer - not only guarantees fine color gradations, but also gives each image a spatial character.
The SD1 Merrill also features an autofocus system with an 11-field double cross sensor, a 3.0 inch TFT color monitor with a resolution of around 460,000 pixels, and a customizable user interface with a quick set menu. The camera can be used with over 40 Sigma lenses, including ultra wide angle, ultra telephoto, macro and fisheye lenses .
Sigma dp0 Quattro
Like the other cameras in the dp Quattro series, the dp0 Quattro has the new Foveon X3 sensor, which can record light of the primary colors in three levels. The design differs from the other cameras and has a rather large 14 mm lens (21 mm on a 35mm camera). Thanks to the wide-angle lens, the dp0 Quattro is particularly suitable for taking landscape photos. It has a resolution of 33 physical or 29 effective megapixels. Both JPG and RAW photos can be made. The dp0 Quattro has no video function.
Sigma dp1 Quattro
At Photokina 2014, the company presented the dp1 Quattro. With a focal length of 19mm (which corresponds to 28mm on a 35mm SLR camera), the dp1 Quattro is particularly suitable for wide-angle photography. In addition, it is particularly bright with an aperture of F2.8. The dp1 Quattro is also equipped with the new Foveon X3 sensor, which with its various layers can capture all information of visible light. The camera also has a resolution of 39 megapixels. The light sensitivity goes up to ISO 6.400 and can be adjusted in 1/3 EV steps. The housing is made of a magnesium alloy and the design corresponds to that of the dp2 Quattro. The photos can be viewed on a 3-inch monitor with a resolution of 920,000 pixels.
Sigma dp2 Quattro
With the SIGMA dp2 Quattro, a new concept of high-resolution compact cameras with the next generation of the Foveon X3 direct image sensor has been created. The size of the Foveon X3 Quattro remains the same at 23.5 × 15.7 mm, but the number of blue light detectors has changed. Compared to the red and green ones underneath, the sensor has four times more blue diodes. In contrast to the previous generation, in addition to a resolution increased by 30% from effectively around 29 megapixels, in particular the higher light sensitivity has been further developed up to ISO 6400.
The dp2 Quattro has a lens with a fixed focal length of 30mm (approx. 45mm KB equivalent) and a maximum aperture of F2.8. The fundamentally redesigned design with a molded handle, which also offers space for the new BP-51 battery , is intended to improve the handling of the camera. The newly installed image processing processor Tru (Three-layer Responsive Ultimate Engine) III also ensures faster and lower-noise image development.
According to the manufacturer, the SIGMA Sigma dp series will also be expanded to include the dp1 and dp3 Quattro. The new generation of sensors and the redesigned design are also adopted for these models.
Sigma dp3 Quattro
The dp3 Quattro has a 50mm lens with a maximum aperture of 2.8. The lens corresponds to 75 millimeters on a 35mm camera and is therefore a light telephoto lens which is also suitable for macro photography due to the reproduction ratio of 1: 3. The SLD glass element and a molded aspherical lens are intended to reduce image errors. Like the other models in the dp Quattro series, the dp3 Quattro also has the improved Foveon X3 sensor.
Sigma DP1 Merrill
The Sigma DP1 Merrill is the newest model from the Sigma DP1 series . The digital camera is equipped with a fixed 19 mm fixed focal length wide-angle lens and has a Foveon X3 image sensor. The maximum image resolution is 46 megapixels (4,800 × 3,200 × 3 layers), and film sequences can be created in VGA quality (640 × 480 pixels).
The DP1 Merrill is equipped with a 3.0 inch TFT color monitor with a resolution of around 920,000 pixels. A manual focus is also available and individual user settings can be made via the Quick Set menu.
Sigma DP2 Merrill
The Sigma DP2 Merrill is the latest model from the Sigma DP2 series and has largely the same features as the Sigma DP1 Merrill. In contrast to the DP1, however, the DP2 has a permanently installed 30 mm fixed focal length standard lens.
Sigma DP3 Merrill
While the DP1 Merrill is designed for wide-angle shots and the DP2 Merrill for the standard range, the DP3 is intended to cover the medium telephoto and macro range and thus complete the DP series. The technical equipment of this digital camera largely corresponds to that of the sister models, whereby it has a permanently installed 50 mm fixed focal length telephoto lens.
Sigma sd Quattro
Mirrorless system camera with an APS-C sensor (eff. 33 MP) from the dp-Quattro series, which is equipped with the SIGMA SA interchangeable lenses.
Sigma sd Quattro H
Mirrorless system camera with an APS-H sensor (eff. 45MP) based on the new principle of the dp-Quattro series, which is equipped with the SIGMA SA interchangeable lenses.
Sigma fp
The compact Sigma fp camera housing has a high-resolution 35-millimeter full-format image sensor with 24.6 effective megapixels. It is (as of February 2020) the smallest and lightest digital camera housing available on the market with such an image sensor. With the model, Sigma follows the principle of a modular camera: the minimalist camera has neither a built-in viewfinder nor a hot shoe or built-in flash, but these can be retrofitted individually as accessories. A handle is also only available as an additional accessory.
Lenses
Sigma offers wide-angle , standard , telephoto and macro lenses for full-frame cameras and cameras in APS-C format. The company not only manufactures lenses for Sigma cameras, but also for the brands Canon , Nikon , Sony , Pentax and Micro Four Thirds .
Product lines
At photokina 2012, Sigma presented three new product lines into which all new lenses will be grouped in the future: In the C (contemporary), A (art) and S (sports) lines, the lenses are not divided according to their fixed focal length, but based on their Usage type.
- The C (contemporary) line includes standard, telephoto and superzoom lenses, which have a particularly compact design. As an all-rounder, they are suitable, for example, for landscape shots, family photos and snapshots.
- Among line A (art) fall lenses for the artistic demands, such as bright fixed focal length, wide angle, and fisheye macro lenses. They should be particularly suitable for studio photography, architecture and astro photography.
- The S (sports) line includes lenses that are suitable for quick sports shots, i.e. telephoto and super-telephoto lenses.
Designations
- ASP
- Aspherical lens
- APO
- Apochromatic lens
- CONV.
- Teleconverter . Lenses of this type can be combined with 1.4x or 2x APO EX DG teleconverters.
- DC
- Digital compact . Lenses with a beam path optimized for digital cameras that are specially designed for sensors in APS-C format.
- DG
- Digital grade. Lenses with optimized beam path for full-format cameras
- DN
- Digital Neo . Lenses for mirrorless interchangeable lens cameras
- EX
- Excellence . Particularly high quality lens series
- FLD
- Flow dispersion glass. This is low- dispersion glass with extremely high light transmission.
- HSM
- Hyper-Sonic Motor . A motor built into the lens, which is driven by ultrasonic waves and enables almost silent automatic focusing.
- IF
- Inner focusing. When focusing, only one or more lens groups inside the lens are moved.
- OS
- Optical stabilizer. Sensors built into the lens - in conjunction with a movably suspended lens element - compensate for camera movements in order to prevent camera shake.
- RF
- Rear focusing or rear lens focusing. Only the rear lens group is moved to focus.
Wide angle
- 4.5 mm F2.8 EX DC circular fisheye HSM
- 8 mm F3.5 EX DG circular fisheye
- 8-16mm F4.5-5.6 DC HSM
- 10 mm F2.8 EX DC diagonal fisheye HSM
- 10-20 mm F3.5 EX DC HSM
- 10-20 mm F4.0-5.6 EX DC / HSM
- 12-24 mm F4.5-5.6 DG HSM II
- 15 mm F2.8 EX DG diagonal fisheye
- 17-50 mm F2.8 EX DC OS HSM
- 17–70 mm F2.8-4 DC Macro OS HSM [C]
- 18-35 mm F1.8 DC HSM
- 18–200 mm F3.5-6.3 DC Macro OS HSM [C]
- 18-200 mm F3.5-6.3 II DC OS HSM
- 18–250 mm F3.5-6.3 DC Macro OS HSM
- 18–300 mm F3.5-6.3 DC Macro OS HSM [C]
- 19 mm F2.8 DN
- 20 mm F1.4 DG HSM [A]
- 20 mm F1.8 EX DG [A]
- 24 mm F1.4 DG HSM [A]
- 24mm F1.8 EX DG Macro
- 24–35 mm F2 DG HSM [A]
- 24-70 mm F2.8 EX DG HSM
- 24-105 mm F4 DG OS HSM
- 28mm F1.8 EX DG Macro
- 30 mm F1.4 DC HSM [A]
- 30 mm F2.8 DN
- 35 mm F1.4 DG HSM [A]
default
- 17-50 mm F2.8 EX DC OS HSM
- 17–70 mm F2.8-4 DC Macro OS HSM [C]
- 18–200 mm F3.5-6.3 DC Macro OS HSM [C]
- 18-200 mm F3.5-6.3 II DC OS HSM
- 18–250 mm F3.5-6.3 DC Macro OS HSM
- 18–300 mm F3.5-6.3 DC Macro OS HSM [C]
- 24-70 mm F2.8 EX DG HSM
- 24-105 mm F4 DG OS HSM
- 30mm F1.4 DC HSM
- 30 mm F2.8 DN
- 35 mm F1.4 DG HSM [A]
- 50 mm F1.4 DG HSM [A]
- 50 mm F1.4 EX DG HSM
- MACRO 50mm F2.8 EX DG
- 50-150 mm F2.8 EX DC OS HSM
Telephoto lenses
- 18–200 mm F3.5-6.3 DC Macro OS HSM [C]
- 18-200 mm F3.5-6.3 II DC OS HSM
- 18–250 mm F3.5-6.3 DC Macro OS HSM
- 18–300 mm F3.5-6.3 DC Macro OS HSM [C]
- 24–105 mm F4 DG OS HSM [A]
- 50-150 mm F2.8 EX DC OS HSM
- 50-200 mm F4.0-5.6 DC OS HSM
- 50-500 mm F4.5-6.3 DG OS HSM
- 70-200 mm F2.8 EX DG OS HSM
- 70-300mm F4.0-5.6 DG APO Macro
- 70-300mm F4.0-5.6 DG OS
- 70-300mm F4.0-5.6 DG Macro
- 85 mm F1.4 EX DG HSM
- MAKRO 105 mm F2.8 EX DG OS HSM
- 120–300 mm F2.8 DG OS HSM [S]
- 120-400mm F4.5-5.6 DG OS HSM
- 135 mm F1.8 DG HSM [A]
- MAKRO 150 mm F2.8 EX DG OS HSM
- 150-500mm F5.0-6.3 DG OS HSM
- 150–600 mm F5.0-6.3 DG OS HSM [C]
- 150–600 mm F5.0-6.3 DG OS HSM [S]
- 200-500mm F2.8 EX DG
- 300 mm F2.8 EX DG / HSM
- 300-800 mm F5.6 EX DG HSM
- 500 mm F4.5 EX DG / HSM
- 800 mm F5.6 EX DG HSM
macro
- MACRO 50mm F2.8 EX DG
- MACRO 70 mm F2.8 EX DG
- MAKRO 105 mm F2.8 EX DG OS HSM
- MAKRO 150 mm F2.8 EX DG OS HSM
- MAKRO 180 mm F2.8 EX DG OS HSM
Mirrorless
- 19 mm F2.8 DN [A]
- 30 mm F2.8 DN [A]
- 60 mm F2.8 DN [A]
Flash units
In addition to lenses, Sigma also offers flashes. These can be used for Sigma's own cameras as well as for Canon, Nikon, Sony and Pentax cameras.
- EF 610 DG ST
- EF 610 DG Super
- EF 630 DG
- EM 140 DG
USB dock
Individual adjustments can be made using the USB dock. Together with special software, the lens firmware can be updated or the focus parameters can be adjusted. In addition, the autofocus speed, the focus range limiter or the OS function can also be changed for lenses from the Sports product line. The USB dock only works with lenses from the new Arts, Contemporary or Sport product line.
software
Sigma Photo Pro
With the Sigma Photo Pro software, image processing and conversion of RAW - into JPEG - or TIFF files can be carried out with all cameras of the SD series, DP series and dp-quattro series. Version 6.x can be downloaded free of charge for Windows 7+ and Mac OS from version 10.7 (6.3.0).
As of December 2016, software version 6.5.1 is available for Windows 7+ and Mac OS 10.8+.
With older cameras, data transfer is only possible with a card reader due to the lack of a driver.
Version 5.5.3 is still available for users of older operating systems such as Windows XP and Vista, as well as MacOS from 10.4.
SIGMA Capture Pro
SIGMA Capture Pro enables photographers to connect the SD1 and SD1 Merrill cameras to the computer and use the computer to remotely control camera settings and recordings.
The software is available free of charge to all Windows users (Windows XP (SP2 or higher), Windows Vista or Windows 7 or higher) and Mac users (Mac OS X Ver. 10.5 or higher) in version 1.1.1. Version 1.2.0 is available for Windows 7 to 10 and MacOS 10.8-10.11.
SIGMA Optimization Pro
SIGMA Optimization Pro is special, free software that enables lenses from the new product lines to be connected to your computer via the SIGMA USB dock and to adapt the lens to your requirements with options such as firmware updates and focus settings. An improved adaptation of the respective lens to your own camera is also possible at home. The current version is 1.3 for Windows 7-10 and MacOS 10.8-10.11.
With the SIGMA USB-DOCK UD-01, the interchangeable lenses of the three Sigma lens product lines (Contemporary, Art and Sports) are set with the software.
service
Connection change service
Since September 2013, customers have been able to convert lenses from the Contemporary, Art and Sports product line to a different connection system as part of the "connection change service". For a fee of 100 to 325 euros or 100 to 400 francs, all relevant parts of the lens can be exchanged in Japan so that it can be used with a new camera. This should enable photographers who change their camera system to continue using their Sigma lenses without any problems.
Warranty and product registration
Germany
Customers who bought a lens introduced there in Germany and register it online receive an extended 3-year warranty from Sigma. As a result of the camera registration, customers are informed about promotions, firmware and software updates as well as new accessories by email.
Switzerland
Lenses imported into Switzerland have been subject to a lifelong guarantee since 2009, which is guaranteed by the general importer, including free annual cleaning and inspection. Registration is not necessary. This is intended to contain the gray market , on whose products the customer can only claim the statutory 2-year guarantee from the seller concerned. However, the lenses are around 20% more expensive compared to lenses for the German market - in comparison, Canon and Nikon lenses are cheaper in Switzerland than in Germany.
Loan service
For customers who do not want to buy a specific product straight away, Sigma or its general importers offer a loan service in various countries. Current cameras and lenses can be borrowed for up to four weeks and tested for a fee.
Repair service
The company, its branches or its general importers offer repair services, which can be used to carry out service or repair work on SIGMA products in the event of damage.
Individual evidence
- ↑ a b c Sigma - company overview. Accessed December 7, 2015 .
- ^ Company: SIGMA Deutschland GmbH. Retrieved January 3, 2014 .
- ↑ a b Michihiro Yamaki, Sigma founder and CEO dies. Retrieved June 17, 2014 .
- ^ A b History of Sigma Corporation. Retrieved June 17, 2014 .
- ↑ SIGMA press release: Here you can find the "Top Jobs" in Rödermark. (PDF) Retrieved June 18, 2014 (English).
- ↑ http://forums.dpreview.com/forums/read.asp?forum=1027&message=24482496&changemode=1
- ↑ http://www.sigma-photo.co.jp/english/camera/discontinued.htm
- ↑ - ( Memento of the original from July 15, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Sigma SD1 Merrill Overview. (No longer available online.) Archived from the original on February 2, 2014 ; accessed on January 29, 2014 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ One sensor, three layers and 14 mm. Retrieved August 7, 2015 .
- ↑ Sigma dp0 Quattro data sheet. Retrieved August 6, 2015 .
- ↑ Sigma introduces dp0 Quattro for the first time and dp3 Quattro again. Retrieved August 7, 2015 .
- ↑ SIGMA dp1 Quattro. Retrieved October 30, 2014 (eng).
- ↑ One sensor, three layers and an unusual camera. Retrieved October 30, 2014 .
- ↑ Sigma dp2 Quattro: New compact camera with Foveon sensor presented. Retrieved April 27, 2014 .
- ↑ Sigma dp3 Quattro data sheet. Retrieved August 7, 2015 .
- ^ Sigma dp3 Quattro. Retrieved August 7, 2015 .
- ↑ Sigma dp3 Quattro overview. (No longer available online.) Archived from the original on August 11, 2015 ; Retrieved August 5, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Data sheet for Sigma DP1 Merrill. Retrieved January 29, 2014 .
- ↑ Sigma DP2 Merrill in the test: compact with full format level. Retrieved January 29, 2014 .
- ↑ Sigma DP3 Merrill in the test. Retrieved January 29, 2014 .
- ↑ Sigma sd Quattro technical data. Retrieved April 13, 2016 .
- ↑ Sigma sd Quattro H technical data. Retrieved April 13, 2016 .
- ↑ Sigma with a new lens strategy: Noble instead of cheap alternative. In: Heise online . Retrieved May 13, 2014 .
- ↑ Sigma USB Dock. Accessed October 21, 2015 (eng).
- ↑ Sigma USB Dock Review. Retrieved on October 20, 2015 (eng).
- ↑ current download Sigma Photo Pro. Retrieved April 4, 2016 .
- ↑ SIGMA software download for version 5.5.3. Retrieved November 11, 2015 .
- ↑ SIGMA Capture Pro 1.0.1 Download with German description. Retrieved November 11, 2015 .
- ↑ current download Sigma Capture Pro with English description. Retrieved November 6, 2016 .
- ↑ SIGMA Optimization Pro: Download software. (No longer available online.) Archived from the original on November 5, 2015 ; accessed on November 11, 2015 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Sigma offers connection change service for lenses. Retrieved February 20, 2014 .
- ↑ Sigma mount conversion service.
- ↑ Sigma - Product Registration - 3 Year Warranty. Retrieved February 21, 2014 .
- ^ Sigma - registration form for cameras. Retrieved February 21, 2014 .
- ↑ http://www.owy.ch/service/garantie.html
- ↑ Fotointern.ch: New warranty conditions for Sigma products
- ↑ General terms and conditions for the loan service. Retrieved February 21, 2014 .
- ↑ General Terms and Conditions of Rent
Web links
![135 mm F1.8 DG HSM [A]](https://commons.wikimedia.org/wiki/File:Sigma_135mm_F1.8_DG_HSM_A_Canon_EF_lens_%26_compatible_Sigma_MC-11_Mount_Converter.jpg){kind=link}
- KK Sigma (Japanese, English)
- Sigma Germany
- Escher Photo Wholesale (General Distributor Austria)
- Ott + Wyss AG (general distributor Switzerland)