Sony SAL-135F28 Manual (en)

1···Focusing ring 2···Distance scale 3···Stepless 
aperture range 4···Lens contacts 5···Mounting index 
6···A position 7···Aperture ring 8···Distance index 
9···Depth-of-field scale
9 8
This lens is a manual focus lens with a highly developed defocusing 
design. A special apodization element gives defocused areas a smooth and 
attractive appearance. This lens is equipped with the aperture ring that 
enables a stepless aperture setting between F No.2.8-5.7 (T No.4.5-6.7
*), and 
makes the most of the defocusing effect in the foreground and background 
areas. Enjoy this unique image-expression, which cannot be duplicated on 
traditional lenses.
*  T No. (T-Numbers) : the T No. is a practical value that indicates how much 
light is in the lens, allowing for the lens’s transmission rate. Although this 
lens’s wide-open aperture is f/2.8, the special apodization system provides the 
light amount of T/4.5, which is the same as that of f/4.5 on a normal lens. The 
aperture value on the lens, the value indicated on a camera, and the value used 
when determining the exposure are all indicated by T No. Use the T No. as a 
normal aperture value.
This lens is designed for Sony 
To reduce fire or shock hazard, do not expose the unit to rain or moisture.
Do not directly look at the sun through this lens.
Doing so might harm your eyes or cause loss of eyesight.
Keep the lens out of reach of small children.
There is danger of accident or injury.
Disposal of Old Electrical & Electronic Equipment 
(Applicable in the European Union and other 
European countries with separate collection 
This symbol on the product or on its packaging indicates that 
this product shall not be treated as household waste. Instead it 
shall be handed over to the applicable collection point for the 
recycling of electrical and electronic equipment. By ensuring this product is 
disposed of correctly, you will help prevent potential negative consequences 
for the environment and human health, which could otherwise be caused 
by inappropriate waste handling of this product. The recycling of materials 
will help to conserve natural resources. For more detailed information 
about recycling of this product, please contact your local Civic Office, your 
household waste disposal service or the shop where you purchased the 
For the customers in the U.S.A.
You are cautioned that any changes or modifications not expressly approved 
in this manual could void your authority to operate this equipment.
This equipment has been tested and found to comply with the limits for a 
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits 
are designed to provide reasonable protection against harmful interference 
in a residential installation. This equipment generates, uses, and can radiate 
radio frequency energy and, if not installed and used in accordance with the 
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular 
installation. If this equipment does cause harmful interference to radio or 
television reception, which can be determined by turning the equipment off 
and on, the user is encouraged to try to correct the interference by one or 
more of the following measures:
– Reorient or relocate the receiving antenna.
– Increase the separation between the equipment and receiver.
– Connect the equipment into an outlet on a circuit different from that to which the 
receiver is connected.
– Consult the dealer or an experienced radio/TV technician for help.
For the customers in Canada
This Class B digital apparatus complies with Canadian ICES-003.
Notes on use
•  Do not leave the lens in direct sunlight. If sunlight is focused onto a nearby 
object, it may cause a fire. If circumstances necessitate leaving the lens in direct 
sunlight, be sure to attach the lens cap.
•  Be careful not to subject the lens to mechanical shock while attaching it.
•  Always place the lens caps on the lens when storing.
•  Do not keep the lens in a very humid place for a long period of time to prevent 
•  Do not hold the camera by the lens part extended for focusing, etc.
•  Do not touch the lens contacts. If dirt, etc., gets on the lens contacts, it may 
interfere or prevent the sending and receiving of signals between the lens and the 
camera, resulting in operational malfunction.
 Names of parts
©2006 Sony Corporation Printed in Japan
Lens for Digital Single Lens  
Reflex Camera 
Operating Instructions 
135mm F2.8 [T4.5] STF
 Attaching/detaching the lens
To attach the lens
  Remove the rear and front lens caps and the camera body cap.
•  You can attach/detach the front lens cap in two ways, (1) and (2). When you attach/detach the 
lens cap with the lens hood attached, use method (2).
  Align the orange index on the lens barrel with the orange index on the 
camera (mounting index), then insert the lens into the camera mount and 
rotate it clockwise until it locks.
•  Do not press the lens release button on the camera when mounting the lens.
•  Do not mount the lens at an angle.
To remove the lens
While pressing and holding the lens release button on the camera, rotate the 
lens counterclockwise until it stops, then detach the lens.
 Attaching the lens hood
It is recommended that you use a lens hood to reduce flare and ensure maximum image 
Align the lens hood with the tip of the lens and rotate it clockwise.
•  When using a built-in camera flash, make sure to remove the lens hood to avoid blockage of the 
flash light.
•  When storing, turn over the lens hood and place it onto the lens backwards.
This lens is a manual-focus lens.
  Select manual-focus mode on your camera.
•  Refer to the camera manual for details.
•  This lens can be used in manual-focus mode, even if your camera is set to autofocus mode.
If your lens is brought directly from a cold place to a warm place, 
condensation may appear on the lens. To avoid this, place the lens in a plastic 
bag or something similar. When the air temperature inside the bag reaches 
the surrounding temperature, take the lens out.
Cleaning the lens
•  Do not touch the surface of the lens directly.
•  If the lens gets dirty, brush off dust with a lens blower and wipe with a soft, 
clean cloth (Cleaning Cloth KK-CA (optional) is recommended).
•  Do not use any organic solvent, such as thinner or benzine, to clean the lens or 
the camera cone.
  Turn the focusing ring until the image appears sharp.
•  The focus signal found in the viewfinder does not work.