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

Sony 135mm F/2.8: Picture 1 thumbnail Sony 135mm F/2.8: Picture 2 thumbnail

Protect Your Investment:

Add a Protection Plan
  • Add a protection plan
  • New Leaf 3 Year Extended Warranty + $29.95
  • New Leaf 3 Year Drops & Spills Extra Protection + $49.95
  • New Leaf 5 Year Drops & Spills Extra Protection + $74.95

Our Price

Buy more and save
Quantity Discount

The quantity discount will be reflected in your shopping cart

About Sony 135mm F/2.8

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).

Sony 135mm F/2.8 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.

Sony 135mm F/2.8 Specifications

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

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

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
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)

Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  I understand that this is a manual focus only lens, and that it doesn't work with focus verification. How about with cameras like the A77 and A99 -- Will focus peaking work with this lens?
DANIEL C  Yes, it does. In my opinion focusing is even easier than auto-focus with the peaking of my A99.
Share this item: is top rated for customer serviceHACKER SAFE certified sites prevent over 99.9% of hacker crime.