Description
Laowa 105mm f / 2 STF is a dual aperture lens with an APD element for maximum precise control over exposure and depth of focus, and for smooth, natural defocus.
The optical APD element functions as a special neutral filter with a radial gradient, which gradually limits the transmission of light to its periphery to T3.2, maintaining the depth of focus of a lens with a maximum aperture of f / 2.
The optical circuit of Laowa 105mm f / 2 STF includes three more elements with low dispersion and one with a high refractive index to control chromatic aberrations and maximum sharpness and clarity of images.
The two apertures with 8 and 14 elements are controlled with separate rings for exposure and the influence of the APD element, respectively.
Characteristics
| General features | |
| Viewfinder Magnification | 0.16x |
| Filter Thread | 67 mm |
| Aperture Max | f / 2 |
| Aperture Min | f / 22 |
| Image Stabilization | No. |
| Minimum Focus Distance | 90 cm |
| Optical Design | 8/11 |
| Angle of View | 23 ° 16 ' |
| Diaphragm Blades | 8/14 |
| Size | 76 x 98.9 mm |
| Weight | 745 g |
Box contents
Front cap
Rear cap
Sunshade