Sony 135mm f/2.8 - f/4.5 STF Alpha A DSLR Mount Lens
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Sony 135mm f/2.8 - f/4.5 STF Alpha A DSLR Mount Lens

Price: $1,398.00

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Description

About Sony 135mm F/2.8

Product Information provided by 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.

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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.

Sony Store customer reviews

Overall:

 
 

(10 reviews)

Tailor-made for beautiful defocus - 135mm F2.8 [T4.5] Smooth Transition Focus lens (SAL135F28) 
 This unique lens has been specifically designed to deliver smooth transitions between crisp in-focus areas and creamily defocused background and foreground areas. 

• Smooth-Transition Focus design with apodization optics 
• Sharp in-focus areas with creamy defocus areas 
• Smooth, natural highlight diffusion 
• Manual focus and aperture rings for total control 
• Minimum focus distance of 34.25 in 

Create smooth, aesthetically pleasing out-of-focus backgrounds that make sharp-focus subjects stand out more vividly with the Sony SAL-135F28 special purpose lens. This advanced STF (Smooth Transition Focus) telephoto lens incorporates an apodization optical element that distributes light rays to create smooth, aesthetically pleasing out-of-focus backgrounds that make sharp-focus subjects stand out more vividly. Mounted on the Sony a (alpha) DSLR-A100 camera, this lens provides a 200mm focal length (35mm equivalent). 

Smooth Transition Focus - Smooth Transition Focus (STF) optics produce images with high resolution at the plane of focus, melting away to beautifully diffused out of focus rendition. 

Say goodbye to blur - Pair the lens with a camera by Sony featuring built-in SteadyShot image stabilization and you'll enjoy smooth, blur-free results when shooting handheld. 

Refined optical performance - Special apodization elements cause the intensity of the defocused point light sources to fade out radially so that no sharply defined edges or geometry remain

Specification

Sony 135mm F/2.8 Specifications

Type
135mm f/2.8 (T4.5) STF Telephoto Lens
Design

Smooth Transmission Focus system for pleasing effect
Apodization Lens Element smoothes out-of-focus areas
Subjects stand out vividly against smooth, even backgrounds
Focusing
Manual focusing with comfortable wide focus ring
Aperture

Circular Aperture gives spot-light sources a circular shape
Manual aperture ring adjusts from T 4.5 to T 6.7
Focal Length

35mm Equivalent: 135 mm
APS: 202.5 mm
Angle of View

35mm Equivalent: 18 deg
APS: 12 deg
Min Focus Distance
2.85 ft (87 cm)
Aperture Maximum
f2.8 (T=4.5)
Aperture Minimum
f31 (T=f32
Maximum Magnification
0.25X
Lens Construction
6 elements in 8 groups with 9 aperture blades
Filter Diameter
72 mm
Lens Dimensions
3-1/8" x 3-7/8" (80 x 99 mm)
Lens Weight
1 lb 9-3/4 oz (730 g)

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