Sony 135mm f/2.8 Smooth Transition Focus Lens, Model SAL135F28
Take powerful video or camera shots with this Sony 135mm f/2.8 smooth transition focus A-mount lens. It's specifically designed to include exceptionally smooth transitions between focused areas and defocused areas so that subjects stand out and the blur gradually increases as you enter midfield and the background. This is achieved through an apodization element, which gradually tapers the focus down to zero at the edges of the photo. Consequently, highlights are beautifully diffused in the background yet are sharp and crisp in the foreground.
This Sony smooth transition lens is fully manual to let you exert complete control over your photos, although you can alter the circular aperture from the camera. Because the blades form a perfect circle at f/2.8, this Sony 135mm lens creates circular highlights in out-of-focus areas for creamy bokeh. Get close in to your subjects thanks to the 87cm minimum focusing distance, and use a 72mm filter to achieve additional effects, such as UV filtering or polarization. The lens carrying case included with this Sony 135mm f/2.8 smooth transition focus A-mount lens keeps it safe when you're not using it.
Smooth Trans Focus (STF)
Smooth Trans Focus (STF) employs a special "apodization" element that causes the intensity of the defocused point light sources to fade out radially so that no sharply defined edges or geometry remain.
Due to the STF design of the SAL135F28, the bokeh, or defocusing, on this lens is extraordinarily creamy and unique, going beyond the capabilities of conventional lens technology.
Manual focus only
Due to the unique characteristics of the STF technology, focusing can only be achieved manually. The effects are well worth the effort.
- Lens Type Standard & Medium Telephoto
- Aperture (Max.) f/2.8
- Aperture (Min.) f/31
- Filter Diameter 72mm
- Lens Groups-Elements 8 group, 6 elements
- Minimum Focus Distance 0.87m
- Aspheric Elements no aspheric
- Depth-of-Field Yes
- Distance Encoder Yes
- Angle of View 12° (35mm), 18° (APS-C)
- Aperture Blade 9 blades
- Dimensions (Max. Diameter x Length) 80mm x 99mm
- Focal Length (35mm equivalent) APS: 202.5mm (35mm Equivalent: 135mm)
- Magnification x 0.25
In the Box
- Front and rear lens cap
- ALC-SH0014 Solid-circular lens hood
- Lens carrying case
- Width: 3.125"
- Depth: 3.875"
- Unit: 1.625 lbs
- Shipping: 3 lbs
- Manufacturer Warranty (authorized online retailer): Limited 1 Year
Features and specifications are subject to change without notice