Sony 135mm f/2.8 STF Lens

Sony 135mm f/2.8 STF Lens

Sony 135mm f/2.8 STF Lens

B&H # SO13528 MFR # SAL135F28
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Product Highlights

  • A-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to 31 | T4.5 to 32
  • Apodization Elements for Smooth Bokeh
  • Manual Focus Design
  • Minimum Focus Distance: 2.9'
  • Manual Aperture with Ten-Blade Diaphragm
  • Auto Aperture with Nine-Blade Diaphragm
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Sony 135mm f/2.8 overview

  • 1Description

Exceptionally smooth bokeh with sharp subject matter are the calling cards of the 135mm f/2.8 STF Lens from Sony. Equipped with Smooth Trans Focus technology, this lens uses apodization optics in order to diffuse the edges of out-of-focus elements, rendering them even smoother than a standard lens can produce. The f/2.8 maximum aperture assists in capture images with shallow depth of field, though with the apodization elements this functions as a T4.5. The lens also features a manual focus design with a manual focus distance of 2.9'. Additionally, it features both a ten-blade manual aperture diaphragm and a nine-blade auto aperture diaphragm, both rounded to create smooth bokeh.

This telephoto prime lens is optimized for full-frame A-mount cameras, however it can be used on APS-C models where it will provide a 202.5mm equivalent focal length.
Optical design incorporates Smooth Trans Focus technology, which uses an apodization element that helps to improve the quality of bokeh. This element, which resembles a radially graduated ND filter that tapers from clear in the center to more dense around the edges, produces more circular out-of-focus highlights for more pleasing selective focus and shallow depth of field effects while still rendering the subject in sharp focus.
An aperture range of f/2.8 to f/31 is available, however the implementation of the apodization filter renders this range as T4.5 to T32.
This lens incorporates two separate aperture diaphragms in order to provide more control over operation and image quality. When shooting near wide open, from T4.5 to T6.7, the manual aperture ring offers a rounded ten-blade diaphragm for smoother and more circular bokeh. For ease of use, there is an electronically controlled aperture which has a rounded nine-blade design for smooth out-of-focus elements.
This lens uses a manual focus design to provide tactile control over focusing during use. It can also focus as close as 2.9'.
Compatible with Sony's line of teleconverters, shooters can easily add the 1.4x or 2x versions to create 189mm f/4 [T6.3] or 270mm f/5.6 [T9] optics, respectively.
UPC: 027242694378
In the Box
Sony 135mm f/2.8 STF Lens
  • ALC-SH0014 Lens Hood
  • ALC-F72S 72mm Front Lens Cap
  • ALC-R55 Rear Lens Cap
  • Lens Case
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Sony 135mm f/2.8 specs

    Focal Length 135mm
    Comparable APS-C Focal Length: 202.5 mm
    Aperture Maximum: f/2.8
    Minimum: f/31
    Camera Mount Type Sony A
    Format Compatibility 35mm Film / Full-Frame Digital Sensor
    Angle of View 18°
    Minimum Focus Distance 2.85' / 87 cm
    Magnification 0.25x
    Maximum Reproduction Ratio 1:4
    Optical Design 8 Elements in 6 Groups
    Diaphragm Blades 10, Rounded
    Image Stabilization No
    Autofocus No
    Tripod Collar No
    Filter Thread Front: 72 mm
    Dimensions (DxL) 3.15 x 3.90" / 80 x 99 mm
    Weight 1.61 lb / 730 g
    Packaging Info
    Package Weight 2.9 lb
    Box Dimensions (LxWxH) 11.9 x 5.0 x 4.9"

    Sony 135mm f/2.8 reviews

    135mm f/2.8 STF Lens is rated 4.9 out of 5 by 7.
    Rated 5 out of 5 by from The Bokeh Machine If you like bokeh this is the lens for you the down side is its not as useful (no autofocus)as the CZ135mm if you can afford only one high end 135mm prime the CZ135mm maybe the way to go. The build quality is excellent, a lens that will last forever if not abused. This is the bokeh lens that is unparalled by any lens by any brand. Its in a class by its self. If bokeh is something you care about its THE lens to have. I list not having auto-focus as a con but its not that big of a drawback, the focus ring is very smooth and precise and a pleasure to use, but if it had AF it would be a must have lens.
    Date published: 2008-07-07
    Rated 5 out of 5 by from A lens for superb bokeh! This lens is truly one-of-a-kind! I use this for portraits and nature (wildflowers, blossoms, etc). It's 135mm range is made for full frame on my a850, but it is just as suitable on my a700. The bokeh that is produced is creamy and delightful creating unique perspectives. The manual focus characterisitcs of the lens allow you to get the focus perspective you desire and the lens is real sharp on the in-focus subjects. The lens is made very sturdy, but you can carry it around just fine. I'm planning on taking it in my backpack on my next trip to Europe this Spring. Makes a great addition to your lens arsenal.
    Date published: 2013-03-24
    Rated 5 out of 5 by from Awesome I own the Minolta Maxxum 135 STF lens, which has the same optical design inside as the Sony. Only the barrel on the Sony lens has been changed (for the better) from the Minolta barrel. I can say without hesitation that this lens (the Maxxum version)is a perfect portrait lens. Don't let the Smooth Trans Focus in the name fool you. There is just no sharper lens. The STF refers to the parts of the image that are out of focus-in the foreground and backround having a very pleasing soft look. A small bright light in the distance, behind a person 6 feet away from the camera, would look bright in the center and gradually less bright toward the edges of the (out of focus) light. In a typical lens, the whole light would just look like a circle of light with the same brightness all across. Being designed in large part for portraiture, the lens does have slightly less contrast than my 100mm Maxxum macro, or my 200mm Maxxum macro. I have taken many test shots with the 135 STF on Fuji 100iso slide film in my Maxxum 9, and the shapness on the slides, from center through corners is just amazing and perfect. I am glad to see that Sony has kept it in production. The build quality-fugetabout-fantastic. It is all metal and solid as a rock-no looseness or play between the parts of the barrel. Even the serial number is engraved right in the metal barrel, instead of having a sticker recessed in the barrel. The very large lens hood is plastic but is very thick and strong. It has black felt on the inside and has an overall look of high quality. This lens is f/2.8 but T/4.5, which means that the light throughput is actually the same as an f/4.5 lens. T stands for true. I think this lens is a must-have if you intend to do much potrait or flower/nature work on a full frame Sony. It is better than my Maxxum 85mm 1.4 on film and probably on a FF digital camera. This lens also has a nice close minimum focus distance-resulting in about 1:4 reproduction. Make sure you get a 72mm filter to protect the front of the lens.
    Date published: 2008-03-14
    Rated 5 out of 5 by from An often overlooked, but amazing lens I initially bought that Zeiss 135 1.8 but returned it and got the STF model instead. The Sony STF simply gives a nicer picture and it's plenty sharp. This is a great lens for people. Everyone looks a bit better when photographed with this lens. I read that this is the lens of choice for one of Sony's top lens designers. No surprise. The only downside is the lack of autofocus and you have to watch out for flare. Always use the lens with a lens shade.
    Date published: 2015-09-16
    Rated 5 out of 5 by from Superb lens for flower On my A850: Sharpness: Sony 135mm STF is sharper and with better contrast than my Minolta 135mm AF f/2.8 and Minolta 80-200 f/2.8 APO when it is accurately focused. Only my Sony 135mm f/1.8 gives higher resolution than the Sony 135mm STF. Bokeh: Sony 135mm STF show much smoother bokeh than the Sony 135mm f/1.8 when the subject has a closed and busy backgound. For example, I see much more bokeh different between 2 lenses for taking a flower picture out of a brush with a lot of leave and branch right next to the subject. However, when shooting a single rose in a vase on an empty table, I can hardly see any bokeh different between Sony 135mm STF and Sony 135mm f/1.8. Unless takeing wild flower picture is your main usage, most people would be better served with the Sony 135mm f/1.8(if only could pick one) for AF and larger aperture. For taking flower picture, I often add Canon 500D to increase magnification. I find close-up lens works better that teleconverter since it would be easiler to MF without light lost to teleconverter. Stack 2 Canon 500D would get me 1:1 but with a little softness at the frame edge. A single Canon 500D won't change sharpness much. I now mostly use the Sony 135mm STF for flower, and I would only use my Minolta 100mm Macro for moving bug.
    Date published: 2013-05-24
    Rated 5 out of 5 by from AMAZING LENS!!! BOKEH like nothing else! For Product Photography, Portrait and still life this lens is amazingly sharp and has THE BEST Bokeh EVER. Use it with Full frame or 35mm Film and you'll treat yourself with one of a kind lens. some how Easy to focus on a 35mm film due to the bright viewfinder. However, No focus confirmation of any kind!! I found this is the only problem with it. But doesn't bother me.
    Date published: 2011-05-15
    Rated 4 out of 5 by from A great lens but not as good as Zeiss this is a good lens but unfortunately , it is still not better or as good as the Zeiss 135mm f1.4. The bokeh is not creamy and smoothy enough compare to the Zeiss,if you want a manual focus and you don't have a Zeiss 135mm ,this would be a good lens for you.Finally i decide to return it back to B& H.
    Date published: 2010-11-15
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    Sony 135mm f/2.8 Q&A

    Sony 135mm f/2.8 accessories

    Designed for use with:

    • Sony Alpha A68
    • Sony Alpha A77 II
    • Sony Alpha A99 II
    • Sony NXCAM NEX-EA50UH
    • Sony NXCAM NEX-FS700
    • Sony NEX-FS100
    • Sony NEX-FS100U
    • Sony NEX-FS700
    • Sony NEX-FS700R
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