Featuring improved rendering performance in a shorter and lighter body Sigma's flagship Sony E-mount 24-70mm f/2.8 DG DN II Art Lens deploys an advanced optical design for gains in sharpnessresolutionand portability. Additions like accelerated autofocusa clickable aperture ringand a scant6.7" minimum focusing distance make this small-footprint follow-up ideal for those seeking versatility without compromising excellence.
Sophisticated Optical Design
- Six "F" Low Dispersion (FLD)two Special Low Dispersion (SLD) elementsand five aspherical elements markedly reduce chromatic aberrations and color fringing throughout the zoom range for improved clarity and color accuracy. Alsoincreased control over sagittal coma flare yields high resolution across the entire frame.
- In addition to superior optical performancethe five aspherical elements contribute to the lens' compact build with their thinhighly polarized construction.
- The brightf/2.8 aperture and rounded 11-blade diaphragm produce a largebeautiful bokeh effect.
- Super multilayer and nano porous coatings have been applied to lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and color-neutral imageryeven in backlit conditions.
- The lens was also designed to suppress focus breathing as the angle of view changes across the zoom rangecreating natural-looking focus pulls when recording video.
Focus FasterFocus Closer
- The introduction of a linear motor high-response linear actuator (HLA) to drive the autofocus yields focusing speeds more than three times faster than its predecessor.
- At the wide-angle end of the zoom rangethe minimum focusing distance improves to 6.7" with a maximum magnification of 1:2.7 to suit working with close-up subjects or in tight spaces.
Built Strong and Svelte
- Maintaining the same number of lens elementsthe overall length has been shortened to 4.8" while the weight has been reduced to 1.6 lb.
- The aperture ring features both click and lock switches for improved handling during use.
- The robust internal structure features metal parts for the zoom extensionwhile the exterior boasts rubber seals in the mount to protect the lens from dust and moisture.
- Two integrated AF-L buttons can be programmed to adjust various shooting settings and the lens also features a dedicated AF/MF switch and a zoom lock switch to prevent the barrel from accidentally extended.
