|DG||The lens is designed for full-frame SLR cameras but can be also used on APS-C SLR cameras.|
|HSM||The lens is equipped with ultrasonic motor to provide very fast and virtually silent autofocus. Learn more|
|II||Second version of the lens.|
|Position in the lineup|
|Sigma 12-24mm F/4 DG HSM | A||Sep 2016||⊗|
|Sigma 12-24mm F/4.5-5.6 DG HSM II||Feb 2011||⊗|
|Sigma 12-24mm F/4.5-5.6 EX DG Aspherical HSM||Oct 2003||⊗|
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|Maximum format:||35mm full frame|
|Diagonal angle of view:||121.9°-84° (35mm full frame)
109.7°-70.7° (Canon APS-H)
97.2°-59.1° (Canon APS-C)
99.3°-61° (Nikon APS-C)
99.3°-61° (Pentax APS-C)
92°-54.8° (Sigma APS-C)
99.3°-61° (Sony APS-C)
|Lens construction:||17 elements in 13 groups, including 4 ASPH, 4 FLD, 1 SLD|
|Closest focusing distance:||28 cm|
|Number of diaphragm blades:||6|
|Type of autofocus motor:||Ultrasonic (Canon EF)
Ultrasonic (Minolta/Sony A)
Ultrasonic (Nikon F)
Ultrasonic (Pentax K)
Ultrasonic (Sigma SA)
|Full-Time Manual Focus:||Yes|
|Weight:||SA: 670 g|
|Maximum diameter x Length:||SA: Ø87 x 120.2 mm|
|Materials:||High-quality plastic barrel, metallic mount|
|Filter size:||No thread|
The lens barrel is of moderate weight, made of high-quality plastic. The lens mount is metallic.
The lens has rather narrow focal range. Formally it is the disadvantage, however in practice it contributes to a good compensation of optical aberrations and equally high image quality at the entire focal range.
The lens features AF/M focus mode switch.
|AF||Autofocus mode with Full-Time Manual Focus.|
|M||Manual focus mode.|
Aspherical elements (ASPH, XA) minimize spherical aberration, astigmatism, coma and ensure excellent sharpness and contrast even at maximum aperture.
Low dispersion elements (AD, ED, LD, HLD, SD, UD etc) and fluorite elements minimize chromatic aberrations and ensure excellent sharpness and contrast even at maximum aperture.
The zooming is performed internally.
Due to the prominent convex profile of the front element the lens does not have a filter thread. However, the manufacturer provided a slip-in filter holder for cut gelatin filters at the rear of the lens.
The buyer gets dedicated adapter ring which allows use of front filters. However the adapter causes mechanical vignetting at most focal lengths.
|Camera||Canon EOS 5D mark II||Nikon D3X|
|Sensor size||36×24 mm||35.9×24 mm|
|Distortion at 12 mm||-4.11 %||-2.67 %|
|Distortion at 24 mm||+1.2 %||+2.13 %|
|Vignetting at 12 mm F/4.5||-2.85 EV||-2.59 EV|
|Vignetting at 24 mm F/5.6||-1.57 EV||-1.72 EV|
|Prime lenses for Canon EOS DSLR cameras|
|Pentax lenses: compendium|