DESCRIPTION
The AF 135mm f/1.8 FE from Samyang is a medium-length telephoto prime designed for full-frame Sony E-mount mirrorless cameras. It is intended for portrait, landscape, and astrophotography photography. The optical design, which has three extra-low dispersion elements and an ultra-precision aspherical element, provides exceptional resolution and reduces chromatic and spherical aberrations for enhanced clarity, sharpness, and colour accuracy. In order to achieve higher contrast when working in harsh lighting conditions, an ultra multicoating has also been applied to reduce ghosting and flare.
The lens has a 2.3-inch minimum focusing distance to accommodate working with up-close subjects and a linear STM autofocus motor for quick, quiet, and precise focusing performance. Focus hold, a custom switch, and a focus range limiter switch are three different customised buttons for improved functionality. For astrophotography, it has an astro-focus function as well. The weather-sealed design provides defence against snow, light rain, and dust.
- Medium-length telephoto prime designed for full-frame Sony E-mount mirrorless cameras, however can also be used with APS-C models where it provides a 202.5mm equivalent focal length.
- Bright f/1.8 maximum aperture benefits working in low-light conditions and also affords significant control over depth of field for working with selective focus techniques.
- Three extra-low dispersion elements reduce color fringing and chromatic aberrations in order to produce greater clarity and color rendering.
- Ultra-precision aspherical element provides natural and refined bokeh.
- Ultra multicoating reduces flare and ghosting for increased contrast and a neutral color balance.
- Linear STM autofocus motor works in conjunction with Sony cameras' focusing systems for quick, quiet, and precise AF control.
- Custom switch can be used for lens-based control over select exposure or shooting functions, such as aperture selection, with additional settings coming via future firmware updates.
- Focus hold button lets you keep the lens locked to your desired focusing distance. Also allows you to assign functions such as Eye AF in settings on the camera body.
- Focus limiter switch lets you constrain the focusing to two different ranges to suit different applications: 27 to 79" for closeup shooting or 59" to infinity for standard shooting.
- Astro-focus mode for astrophotography.
- Eleven-blade diaphragm contributes to a pleasing out-of-focus quality that benefits the use of shallow depth of field and selective focus techniques.
- Weather-sealed construction helps protect against dust and moisture.
- Included lens hood helps to block stray light from causing flare and ghosting.
SPECIFICATIONS
- Aperture Range
- F1.8 - 22
- Mount
- Sony E
- Optical Construction
- 13 elements in 11 groups (1 U-ASPf2 HRf3 ED)
- Aperture Blades
- 11
- Image Sensor
- Full Frame
- AF Motor
- Linear STM (Stepping Motor)
- Minimum Objective Distance
- 2.26' (0.69m)
- Filter Size
- 82mm
- Maximum Diameter
- 93.4mm
- Weather Sealing
- Yes
- Size
- 5.1" (129.6mm)
- Weight
- 27.2 oz (772g)
