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Adorama

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Item Includes Description Features Specifications

Sony 135mm f/2.8 - f/4.5 STF Smooth Transition Focus a (Alpha) Mount Digital SLR Telephoto Lens with Hood

Mfr. Part: SAL135F28     SKU: ISO13528STF

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Item Includes
Front and Rear Lens Cap - SH0014 Lens Hood - Sony Warranty

Description
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.

A unique telephoto lens for smooth, natural focus effects in foreground and background.
· 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).

Features
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 ofthe 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.

Specifications
Type135mm 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
FocusingManual 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 Distance2.85 ft (87 cm)
Aperture Maximumf2.8 (T=4.5)
Aperture Minimumf31 (T=f32)
Maximum Magnification0.25X
Lens Construction6 elements in 8 groups with 9 aperture blades
Filter Diameter72 mm
Lens Dimensions3-1/8" x 3-7/8" (80 x 99 mm)
Lens Weight1 lb 9-3/4 oz (730 g)
  
 
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