Exceptionally smooth bokeh with sharp subject matter are the calling cards of the 135mm f/2.8 STF Lens from Sony. Equipped with Smooth Trans Focus technology, this lens uses apodization optics in order to diffuse the edges of out-of-focus elements, rendering them even smoother than a standard lens can produce. The f/2.8 maximum aperture assists in capture images with shallow depth of field, though with the apodization elements this functions as a T4.5. The lens also features a manual focus design with a manual focus distance of 2.9'. Additionally, it features both a ten-blade manual aperture diaphragm and a nine-blade auto aperture diaphragm, both rounded to create smooth bokeh.
Focal Length | 135mm |
Maximum Aperture | f/2.8 |
Minimum Aperture | f/31 |
Lens Mount | Sony A |
Format Compatibility | Full-Frame |
Angle of View | 18° |
Minimum Focus Distance | 2.85' / 86.87 cm |
Maximum Magnification | 0.25x |
Optical Design | 8 Elements in 6 Groups |
Diaphragm Blades | 10, Rounded |
Focus Type | Manual Focus |
Image Stabilization | No |
Filter Size | 72 mm (Front) |
Dimensions (ø x L) | 3.15 x 3.9" / 80 x 99 mm |
Weight | 25.8 oz / 0.73 kg |
Package Weight | 2.9 lb |
Box Dimensions (LxWxH) | 11.9 x 5 x 4.9" |