- Smooth transmission focus system for Pleasing effect
- Apodization lens element smooths out-of-focus areas
- Subjects stand out vividly against smooth, even backgrounds
- Manual aperture ring adjusts from T 4.5 to t 6.7, Manual focusing with comfortable wide focus ring
- Circular aperture gives spot light sources a circular shape

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Product Description

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.
From the Manufacturer



135mm F2.8 (T4.5) STF Telephoto Zoom Lens

This unique lens has been specifically deisnged to deliver smooth transitions between crisp in-focus areas and creamily defocused background and foreground areas. Featuring a manual aperture ring to provide direct, hands-on defocusing control and offers smooth, natural highlight diffusion. This 135mm lens promises a one-of-a-kind photographic experience.




Technology



Circular Aperture

When changing your aperture to defocus the background, the light sources appear blurred. This ‘bokeh’ effect of the blurred background can be enhanced with circular aperture blades used in this lens. Conventional aperture blades have flat sides creating unappealing polygonal shaped defocussed points of light. α lenses overcome this problem through a unique design that keeps the aperture almost perfectly circular from its wide-open setting to when it is closed by 2 stops. Smoother, more natural defocusing can be obtained as a result.




2008 Sony Electronics, Inc.

All rights reserved. Sony, the Sony logo, Alpha, “α” and Super SteadyShot are trademarks of Sony. All other trademarks are trademarks of their respective owners.






ASIN : B000JE5CJQ


PROD번호 : 690192704
정보업데이트 : CV.39403 : 2020-10-05 오후 12:29:24