The Samyang AF 18mm F2.8 Full Frame Lens for Sony E mount is optimized for portability, compactness, and ergonomic handling.
It is Samyang‘s fourth compact lens designed specifically for Sony mirrorless cameras which are surprisingly capable for their size. At 5.12oz in weight and 1.99” in length, it is the most compact, lightweight, and affordable super-wide angle full frame lens for Sony E mount.
The 18mm focal length provides a rectilinear 100.1° super wide angle view that is especially suitable for landscape, interior, architectural, and night sky applications. For Sony APS-C sensor cameras, the focal length is equivalent to 27mm with a 76.2° field of view.
Optically, the lens is made up of nine Ultra Multicoated elements in eight groups. Eight specialized lens elements (3 Aspherical, 2 High Refractive Index, and 3 Extra-low Dispersion elements) combine to minimize distortion and ensure high image sharpness, clarity, and contrast.
The internal focusing design of the Samyang AF 18mm utilizes a STM (Stepless Motor) for quiet, smooth and precise autofocusing to 9.8”. This also prevents both changes in length and front element rotation to enable easy use of 58mm polarizing and other filters that require precise positioning.
This compact wide-angle optic is designed with a metal mount and glass strengthened composite material to reduce weight while increasing durability. Each lens comes equipped with a removable petal-shaped hood, lens caps, and a custom fitted case.
Specifications
| Model name | AF 18mm F2.8 | |
| Aperture range | F2.8 ~ 22 | |
| Lens optical construction | 9 Elements in 8 Groups | |
| Special lens | 3 Aspherical, 3 Extra Low Dispersion, 2 High Refractive Index | |
| Coating | UMC | |
| Minimum focusing distance | 0.25m (9.8") | |
| Maximum magnification ratio | x 0.09 | |
| Filter size | 58mm | |
| Number of blades | 7 | |
| Mount | Sony E | |
| Angle of view | Full Frame | 100.1˚ |
| ASP-C | 76.2˚ | |
| Maximum diameter | 63.5mm | |
| Length | 60.5mm | |
| Weight | 145g | |
| AF Motor | Linear stepping motor | |
MTF Chart
Optical Construction
Features
A Tiny, Ultra-Lightweight Lens
A Prime Lens with 8 Specialized Elements
Employs a Linear Stepping Motor
A Wide-Angle Lens with Depth
The Ultimate Travel Companion
A Multi-Use Lens for Any Occasion
Sample Gallery
A
I have used this lens on 2 real estate shoots so far. It has works really well. The glass isn't the best but images focus fine and I have has no issues with vinetting around the corners.
D
I bought this as a travel lens to supplement my 24-105mm f4 lens. It is a great companion while travelling for the landscape shots, big crowds and low light. It is so small and compact that it hardly takes any space in the bag. This will be a permanent travel lens for me going forward.
s
It's not as sharp as my 35mm Sony F1.8 prime but for the price this is a nice fast wide angle lens. I use it often for room scenes for a furniture company. I use it inside where I need the fast speed. And I like it for landscapes. But it doesn't give me great bokeh because it's so wide angle and I wish it were a bit sharper and had less distortion around the edges, when I'm feeling picky.
M
Great quality and lightweight takes great pictures
t
If you're looking for a wider-angle look for your Sony camera, I highly recommend Samyang's third-party lenses. They're affordable and deliver great quality that never disappoints.
