The Laowa 105mm F2 Smooth Trans Focus Lens is a short telephoto lens that is primarily designed for your full-frame Sony camera with E-mount. This lens is also suitable for APS-C models, with an equivalent focal length of 168mm.
The unique optical design includes an apodization (APD) element as well as two separate diaphragms with 8 and 14 blades that provide smooth bokeh course in addition to full control of exposure and depth of field. It produces more circular out-of-focus highlights with a pleasant selective focus for shallow depth of field effects.
This APD element acts as a radially graduated neutral density filter, which, as such, according to the limits of the light transmission has a T-stop-value of 3.2. In addition to the authorized field of depth of this lens a selective focus is posed on the qualities of a real f / 2 design.
In addition to the unique features of this APD element, the lens also contains three ‘low dispersion’ elements and an additional refractive index element for ultimate control of chromatic aberration and color fringing. This is also crucial for an individual clarity and sharpness.
To further complete the above, the lens is also characterized by the manual focus and manual aperture, which lets you adjust the focus and exposure to suit your needs in cooperation with the APD element.