Announcement: Sigma 28-70mm 1: 2.8 DG DN C | Contemporary

The Sigma 24-2021mm 28: 70 DG DN C lens was announced on February 1, 2.8 | Contemporary.

Basic properties

• Sigma lens DG DN Contemporary
  
• For full-frame mirrorless cameras with Sony E / FE and Leica L mount
• Focal Length: 28-70 mm
• Relative Hole: 1: 2.8-1: 22
• MDF: 19 centimeters
• Maximum magnification ratio 1:3-1:4.6 (depending on focal length, from 28 to 70 mm)
  
• Optical design: 16 elements in 12 groups, including 2 SLD, 2 FLD and 3 aspherical elements
• Enlightenment: SML + Nano Porous
• Aperture: 9 rounded blades
• Focusing with a stepper motor
• Filter Diameter: 67 mm
• Protected enclosure
• Weight: 470 gram
• Price: about 900 dollars. Prices for modern Sigma lenses can be viewed on E-Katalog at this link

Appearance

All Sigma Contemporary Lenses

Line of lenses Sigma C (Sigma Contemporary) It comprises:

DG

Lenses for full-frame SLR cameras (series DG), for Nikon F, Canon EF and Sigma SA mounts:

1. SIGMA 100-400 mm 1: 5-6.3 DG OS | C (Contemporary), 21/15, February 2017 [AliExpress]
2. SIGMA 150-600 mm 1: 5-6.3 DG OS MACRO | C (Contemporary), 20/14, September 2014 [AliExpress]

DG DN

Lenses for full-frame mirrorless cameras (series DG DN) for bayonets Sony E и Leica l. SIGMA I - compact premium prime lenses:

1. Sigma 17 mm 1: 4 DG DN C | (Contemporary), 9/8 April 2023 [I] [AliExpress]
2. Sigma 20 mm 1: 2 DG DN C | (Contemporary), 13/11, February 2022 [I] [Aliexrepss]
3. Sigma 24 mm 1: 2 DG DN C | (Contemporary), 13/11 September 2021 [I] [AliExpress]
4. Sigma 24 mm 1: 3.5 DG DN C | (Contemporary), 10/8, December 2020 [I] [AliExpress]
5. Sigma 35 mm 1: 2 DG DN C | (Contemporary), 10/9, December 2020 [I] [AliExpress]
6. Sigma 45 mm 1: 2.8 DG DN C | (Contemporary), 8/7, July 2019 [I][AliExpress]
7. Sigma 50 mm 1: 2 DG DN C | (Contemporary), 11/9, April 2023 [I] [AliExpress]
8. Sigma 65 mm 1: 2 DG DN C | (Contemporary), 12/9, December 2020 [I] [AliExpress]
9. Sigma 90 mm 1: 2.8 DG DN C | (Contemporary), 11/10, September 2021 [I] [AliExpress]
10. Sigma 16-28 mm 1: 2.8 DG DN C | (Contemporary), 16/11, June 2022 [AliExpress]
11. Sigma 28-70 mm 1: 2.8 DG DN C | (Contemporary), 16/12, February 2021 [AliExpress]
12. Sigma 100-400 1: 5-6.3 DG DN OS C | (Contemporary), 22/16, June 2020 [AliExpress]

DC

Lenses for cropped SLR cameras (series DC) for Nikon F, Canon EF, Sigma SA, Sony A, Pentax K:

1. SIGMA 17-70 mm 1: 2.8-4 DC OS MACRO | C (Contemporary), 16/14, September 2012 [AliExpress]
2. SIGMA 18-200 mm 1: 3.5-6.3 DC OS MACRO | C (Contemporary), 16/13, January 2014
3. SIGMA 18-300 mm 1: 3.5-6.3 DC OS MACRO | C (Contemporary), 17/13, September 2014 [AliExpress]

DC DN

Lenses for cropped mirrorless cameras (series DC DN) for bayonets fujifilm x, Micro 4 / 3, Sony E, Canon EOS M, Leica l, Nikon Z:

1. SIGMA 16 mm 1: 1.4 DC DN | C (Contemporary), 16/13, October 2017 [AliExpress]
2. SIGMA 23 mm 1: 1.4 DC DN | C (Contemporary), 13/10, April 2023 [only E, L] [Alixexpress]
3. SIGMA 30 mm 1: 1.4 DC DN | C (Contemporary), 9/7, September 2016 [AliExpress]
4. SIGMA 56 mm 1: 1.4 DC DN | C (Contemporary), 10/6, September 2018 [AliExpress]
5. SIGMA 18-50 mm 1: 2.8 DC DN | C (Contemporary), 13/10, October 2021 [only X, E, L] [AliExpress]

Additionally, you can look at all lenses SIGMA ART (A) и all lenses SIGMA SPORT (S). Here here there is a short video about the rulers and markings of Sigma lenses.

History

Sigma has the largest family tree of universal high-aperture zoom lenses. It is sometimes very difficult to distinguish one model from another, as well as find information on a particular modification.

Below are listed all such lenses in chronological order of their publication, the names are indicated according to the spelling on the lens housing or near the front lens, and the optical design and the number of special elements are indicated:

1. Sigma 28-70mm 1: 2.8 Zoom, 13/10 [0], since May 1992, aka Vivitar Series 1 28-70/2.8 VMC
   
2. Sigma 28-70mm 1: 2.8 Zoom EX Ashperical [+ -D], 15/12 [2 ASP], from the end 1998
3. Sigma 28-70mm 1: 2.8 Zoom EX aspherical DF [+ -D], 15/12 [2 ASP], since February 2001
4. Sigma 24-70mm 1: 2.8 Zoom EX DG aspherical [+ -D], [DF] 14/13 [3 ASP, 2 SLD], since February 2001
5. Sigma 24-60mm 1: 2.8 Zoom EX DG [+ -D], 16/15 [4 ASP, 2 SLD], several subversions, since May 2004
6. Sigma 24-70mm 1: 2.8 Zoom EX DG Macro [+ -D], 14/13, [3 ASP, 2 SLD], since September 2004
7. Sigma 28-70mm 1: 2.8 Zoom EX DG [+ -D], 14/12 [4 ASP, 2 SLD] since September 2004
8. Sigma 24-70mm 1: 2.8 EX DG HSM, 14/12 [3 ASP, 1 ELD, 2 SLD], since September 2008
9. Sigma 24-70mm 1: 2.8 DG OS A, 19/14 [4 ASP, 3 SLD], since February 2017
10. Sigma 24-70mm 1: 2.8 DG DN A, 19/15 [3 ASP, 2 SLD, 6 FLD], since November 2019
11. Sigma 28-70 mm 1:2.8 DG DN C, 16/12 [3 ASP, 2 SLD, 2 FLD], from February 2021

Separately, you can still identify almost universal:

1. Sigma 20-40mm Zoom 1: 2.8 EX DG aspherical IF [+-D], 17/13 [2 ASP], since August 2001
2. Sigma 24-35mm 1:2 DG A, 18/13 [1 ASP, 7 SLD, 1 FLD, 1 ASP SLD], since June 2015

Designations in the names of the lenses:

• EX (EXcellent) - the highest quality professional lens
• DG - the lens is designed for full-frame SLR digital cameras
• DN - lens designed for mirrorless digital cameras
• Df (Dual Focus) - a focusing system for convenient work with the focusing ring (DF is written near the front lens, or on the box / instruction)
• IF (Iinternal Focusing) - internal focus
• aspherical (ASP) - the presence of aspherical elements in the optical scheme
• SLD (Special Low Dispersion) - special low dispersion elements in the optical scheme
• FLD - (Fluorite-like Low Dispersion) - special low-disperse elements in the optical scheme with characteristics close to fluorite
• ASP SLD (ASPherical Special Low Dispersion) - special elements that are simultaneously aspherical and low dispersion
• ZOOM - zoom lens, the presence of zoom
• HSM (Hyper Sabout nothing Motor) - ultrasonic focusing motor
• OS (Optical Stabilizer) - built-in optical image stabilizer
• A (Art) - Sigma Art Premium Lens Range
• С (Ccontemporary) - a line of modern lenses with a good price / quality ratio
• D - a letter in the name of the lens, which was placed only on some lenses for Nikon F cameras (analogue 'Nikon D') and Sony / Minolta (because the name of the lenses from the list is [plus or minus D]). Typically, the letter 'D' is located near the focal length indicated on the case, such as 20-40mmD, 24-60mmD, 24-70mmD, 28-70mmD)

Materials on the topic:

1. Full frame mirrorless systems... Discussion, choice, recommendations.
2. Cropped mirrorless systems... Discussion, choice, recommendations.
3. Cropped mirrorless systems that have stopped or are no longer developing
4. Digital SLR systems that have stopped or are no longer developing
5. JVI or EVI (an important article that answers the question 'DSLR or mirrorless')
6. About mirrorless batteries
7. Simple and clear medium format
8. High-speed solutions from Chinese brands
9. All fastest autofocus zoom lenses
10. All fastest AF prime lenses
11. Mirrored full frame on mirrorless medium format
12. Autofocus Speed ​​Boosters
13. One lens to rule the world
14. The impact of smartphones on the photography market
15. What's next (smartphone supremacy)?
16. All announcements and novelties of lenses and cameras

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Material prepared Arkady Shapoval. Training/Consultations | Youtube | Facebook | Instagram | Twitter | Telegram