- Webcode: 238569 • Mfr: SAL135F28
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Product Highlights
- f/2.8 - f/31 Aperture Range
- Full-Frame Format
- 8/6 Elements/Groups
- Body-Integrated Image Stabilization
- Sony A Mount

Sony 135mm f/2.8 Smooth Transition Focus A-Mount Lens (A99 & A77)
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Overview
The advanced SAL-135F28 STF (Smooth Transition Focus) telephoto lens incorporates an apodization optical element that distributes light rays to create smooth, aesthetically pleasing out-of-focus backgrounds and foregrounds that make sharp-focus subjects stand out more vividly. Mounted on your Sony α (alpha) DSLR-A100 camera, this lens provides a 200mm focal length (35mm equivalent).
Smooth Transmission Focus
While subjects remain in sharp focus, out-of-focus backgrounds or foregrounds are blurred smoothly and evenly with gradation that thickens toward the edges of the frame for a pleasing aesthetic effect
Transmissive Brightness
After light passes through the apodization element, the lens aperture of f2.8 yields a T (transmissive brightness) equivalent of 4.5; a manual aperture ring can adjust T setting from 4.5 to 6.7.
Wide Focus Ring
The dedicated manual focusing system is controlled by a wide focus ring that’s comfortable to hold and gives you a solid, hands-on feel for pinpoint focusing of your subject.
Circular Aperture
Because aperture blades form a near circle at the wide openings used for low-light shots, spot-light sources have a pleasing circular defocused effect.
What's Included
- Front and rear lens cap
- SH0014 solid-circular lens hood
- Lens carrying case
Reviews
Product Specifications
Detailed Specifications | |
---|---|
Dimensions (Approx.) : | 3 1/8 x 3 7/8” (80 x 99mm) |
Weight (Approx.) : | 1lb 10oz (730g) |
Aperture (Max.) : | f/2.8 |
Aperture (Min.) : | f/31 |
Blades : | 9 aperture blades |
Depth-of-Field : | Yes |
Distance Encoder : | Yes |
Focal Length : | APS: 202.5mm (35mm Equivalent: 135mm) |
Lens Groups-Elements : | 1 group, 2 elements |
Lens Type : | Standard & Medium Telephoto |
Magnification : | x 0.25 |
Minimum Focus Distance : | 2.85' (87cm) |
Questions & Answers
Sony 135mm f/2.8 Smooth Transition Focus A-Mount Lens (A99 & A77)
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