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
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.
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.
- Front and rear lens cap
- SH0014 solid-circular lens hood
- Lens carrying case
|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|
|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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