Sigma 85mm f/1.4 DG HSM Art Lens for Nikon F
Sigma looked to create a peak portrait prime with the 85mm f/1.4 DG HSM Art Lens, and they delivered an optic with high performance, a large f/1.4 aperture, and a variety of technologies. Available here with a Nikon F mount, this lens offers a super-fast f/1.4 aperture that is great for getting images with an exceptionally shallow depth of field and smooth bokeh. It also uses two SLD elements, one anomalous partial dispersion/high-refractive index element, and one aspherical element that minimize aberrations and ensures a crisp, clear image. A Super Multi-Layer coating helps by suppressing flare and ghosting.
For operation, a Hyper Sonic AF motor provides fast, accurate focusing, and a large focusing ring permits manual focus override for making fine adjustments. A rounded 9-blade diaphragm also helps create round, smooth bokeh. It is made from a thermally-stable composite material that is light and durable and it has a brass bayonet mount. Additionally, it is fully compatible with Sigma's USB Dock.
Two SLD elements, one element with a high rate of anomalous partial dispersion and a high index of refraction, and one aspherical element have been incorporated within the lens design to correct for chromatic aberrations throughout the entire focusing range and help to ensure high image sharpness, clarity, and contrast regardless of focus point or aperture setting. This optical design also helps to control distortion and limit vignetting.
The rounded nine-blade diaphragm helps to produce an attractive out-of-focus quality
The lens is constructed using a Thermally Stable Composite (TSC) material, along with traditional metals, for greater precision and use in wide temperature variations
Fast f/1.4 maximum aperture is well-suited for working in low-light conditions
Specifications:
| Focal Length: | 85mm |
| Maximum Aperture: | f/1.4 |
| Minimum Aperture: | f/16 |
| Lens Mount: | Nikon F |
| Lens Format Coverage: | Full-Frame |
| The angle of View: | 28.6° |
| Minimum Focus Distance: | 33.46" / 85 cm |
| Maximum Magnification: | 0.12x |
| Optical Design: | 14 Elements in 12 Groups |
| Diaphragm Blades: | 9, Rounded |
| Focus Type: | Autofocus |
| Image Stabilization: | No |
| Filter Size: | 86 mm (Front) |
| Dimensions (ø x L): | 3.73 x 4.97" / 94.7 x 126.2 mm |
| Weight: | 2.49 lb / 1.13 kg |
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