Sirui Aurora 85mm f1.4 Lens (Nikon Z)
50,000.00৳
The Sirui Aurora 85mm f/1.4 is a significant release for Nikon Z-mount users, as it represents Sirui’s first foray into high-end, full-frame autofocus portrait primes. It is designed to offer the “G Master” or “S-Line” experience—extreme background separation and sharpness—at a much more aggressive price point.
| Feature | Specification |
| Aperture | $f/1.4$ to $f/16$ (15-blade diaphragm for ultra-smooth bokeh) |
| Autofocus | STM (Stepping Motor) — Fast and nearly silent |
| Optics | 14 Elements in 9 Groups (includes ED, HR, and Aspherical glass) |
| Min. Focus | 0.85m (2.79 ft) |
| Weight | 540g (Remarkably light for an $f/1.4$ 85mm) |
| Filter Size | 67mm |
| Special Features | AF/MF Switch, Custom Button, Aperture Ring (De-clickable) |
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The Sirui Aurora 85 mm f/1.4 is an autofocus portrait‑length prime lens made for Nikon Z‑mount full‑frame mirrorless cameras. It combines a bright f/1.4 maximum aperture with a lightweight, compact design to deliver strong subject isolation, pleasing bokeh, and good low‑light performance—all at a price point significantly lower than many traditional first‑party 85 mm lenses.
This lens is tailored for portraiture and hybrid workflows (photo + video), with a fast aperture helping with shallow depth of field and smooth background blur. Its optical construction includes several corrective elements to control aberrations and enhance image quality, and the lens features physical control switches (e.g., AF/MF, focus hold) for practical use on location.
Key Specifications
General
- Lens Type: Short telephoto prime (portrait lens)
- Mount: Nikon Z‑mount (full‑frame)
- Focal Length: 85 mm
- Maximum Aperture: f/1.4
- Minimum Aperture: f/16
- Format Compatibility: 35 mm full‑frame / APS‑C (equivalent ~127.5 mm)
- Series: Sirui Aurora series autofocus lens
Optical Design
- Optical Construction: 14 elements in 9 groups
- Special Elements:
- 1 × Aspherical element
- 2 × ED (Extra‑Low Dispersion) glass
- 3 × HRI (High Refractive Index) glass for improved transmission and reduced aberrations
- Diaphragm Blades: 15 (for smooth, circular bokeh)
- Coating: Multi‑coatings to reduce flare and ghosting
Autofocus & Focus
- Autofocus: Yes (Stepper motor AF)
- Focus Performance: Fast, smooth, and near‑silent—suitable for both stills and video
- Minimum Focus Distance: 0.85 m (2.79 ft)
- Maximum Magnification: ~0.115×
- Manual Focus Override: Yes
- Control Switches: Dedicated AF/MF switch and focus‑hold button for on‑lens convenience
Imaging Qualities
- Aperture Range: f/1.4–f/16
- Depth‑of‑Field Control: Strong subject separation with wide‑open f/1.4
- Bokeh: Very smooth, circular background blur suitable for portraits
- Low‑Light Performance: Excellent given the fast f/1.4 aperture
Physical & Handling
- Filter Thread: 67 mm
- Weight: ~540 g (1.19 lb)
- Dimensions: ~80 × 102 mm (diameter × length)
- Mount‑Specific: Body‑mounted for Nikon Z
- Build: Compact and lightweight for handheld shooting and gimbal use
- Included Accessories: Lens hood and caps
Key Features
- Bright f/1.4 maximum aperture for creative depth‑of‑field and better low‑light capture
- Rich, smooth bokeh thanks to a 15‑blade diaphragm
- Advanced optical elements (HRI + ED + aspherical) for controlled aberrations and good resolution
- Fast, quiet autofocus with dedicated on‑lens controls
- Compact, lightweight design ideal for portrait work and hybrid shooters
- Dust‑ and weather‑resistant build (improved durability in outdoor conditions)
Ideal For
- Portrait photography (headshots, environmental portraits)
- Weddings, engagements, and event work
- Hybrid photo/video creation
- Low‑light and ambient‑light situations
- Creators seeking a cost‑effective portrait prime for Nikon Z
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