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Sony Alpha a6400 compact mirrorless camera black with 16-50mm and 55-210mm lenses 32GB
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Nikon Inc
Sigma 50mm f/1.4 DG HSM Art Lens for Nikon F 311306
A 50 mm f/1.4 prime for Nikon F-mount DSLRs with ultrasonic autofocus and 77 mm filter thread
- PartSLR Lenses
- TypeTelephoto Lens
- ColorBlack
- Diameter77 mm
- CompatibilityCanon EOS
- Focus TypeAuto Focus
- Wide f/1.4 aperture enables shallow depth of field and low-light shooting
- 50mm focal length gives 75mm equivalent on APS-C and 80mm on Canon APS-C
- Ring-type ultrasonic AF motor delivers fast autofocus with full-time manual override
- Minimum focus distance of 15.7 inches allows close-up detail work
- Brass bayonet mount and thermally stable composite ensure durable, precise fit
Ideal for portrait and low-light photography
The Sigma 50mm f/1.4 DG HSM Art Lens is built for Nikon F-mount FX-format cameras and also covers APS-C bodies with 75mm and 80mm equivalent focal lengths. Its bright f/1.4 maximum aperture suits photographers who need shallow depth of field and reliable indoor performance. The lens is not zoomable and focuses as close as .4 metres. Buyers who want a zoom range or a wider angle of view should look elsewhere.
Optics and autofocus in daily use
One moulded glass aspherical element and three Special Low Dispersion elements correct axial chromatic aberration throughout the focusing range. Super Multi-Layer Coating reduces flare and ghosting in normal lighting. The ring-type ultrasonic Hyper Sonic Motor delivers swift, quiet autofocus with full-time manual override. A rounded nine-blade diaphragm produces smooth background rendition at typical working apertures.
Behaviour during extended sessions
Thermally Stable Composite material and a brass bayonet mount maintain alignment when the lens is used for long periods. Focus calibration can be fine-tuned with the optional Sigma USB Dock. The fixed 50mm focal length and f/16 minimum aperture remain consistent regardless of session length.
Highlights
- Wide f/1.4 aperture enables shallow depth of field and low-light shooting
- 50mm focal length gives 75mm equivalent on APS-C and 80mm on Canon APS-C
- Ring-type ultrasonic AF motor delivers fast autofocus with full-time manual override
- Minimum focus distance of 15.7 inches allows close-up detail work
- Brass bayonet mount and thermally stable composite ensure durable, precise fit
Specifications
| Brand | SIGMA |
|---|---|
| Model | 311306 |
| Part | SLR Lenses |
| Type | Telephoto Lens |
| Color | Black |
| Diameter | 77 mm |
| Compatibility | Canon EOS |
| Focus Type | Auto Focus |
| Focal Length | 50 mm |
| Aperture | Maximum: f/1.4 Minimum: f/16 |
| Camera Mount | Nikon F |
| Filter thread (Diameter) | 77 mm |
| Specifications | 77mm filters |
| Autofocus | Yes |
| Features | Ring-type ultrasonic-type AF motor with full-time manual focusing |
| Weight | 2.52 |
Questions about this item
How do I mount this 50 mm f/1.4 lens on my Nikon F camera and what step is often missed?
Align the brass bayonet mount with the camera’s lens index, twist until it clicks, then remove the rear cap; the step many skip is calibrating autofocus using the optional Sigma USB Dock before critical work.
What maintenance will this lens need over time?
Clean the front and rear elements with a blower and microfibre cloth, keep the 77 mm filter thread protected when not in use, and re-run focus calibration via the USB Dock if autofocus accuracy drifts.
What limit appears first during extended shooting at f/1.4?
The shallow depth of field at f/1.4 makes precise focus placement the practical limit; focus breathing and motor heat are minimal, so missed focus shows up before any thermal or mechanical constraint.
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