Sony SAL135F28 Operating Instructions

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Year 2006

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Sony SAL135F28 Specification

The Sony SAL135F28 is a high-performance telephoto lens designed for professional photographers seeking exceptional image quality and creative control. This lens features a focal length of 135mm, making it ideal for portrait, wildlife, and sports photography, where capturing subjects with clarity and detail is paramount. It boasts an aperture range from f/2.8 to f/32, allowing for excellent low-light performance and the ability to create stunning bokeh effects. The lens construction consists of 8 elements in 6 groups, including special glass elements that minimize chromatic aberrations and enhance overall image sharpness.

Equipped with Sony's Smooth Trans Focus (STF) technology, the SAL135F28 delivers beautifully smooth and natural defocused backgrounds, enhancing subject isolation and artistic expression. The lens incorporates a circular aperture design with 11 blades, contributing to the pleasing bokeh quality. It features a manual focus mechanism, providing precise control for photographers who prefer to fine-tune their focus settings. The lens is compatible with Sony's A-mount cameras and can be adapted for use with E-mount systems through a compatible adapter.

Weighing approximately 730 grams and measuring 99.5mm in length, the lens offers a robust build quality with high-grade materials ensuring durability and reliability in various shooting conditions. The SAL135F28 is also equipped with a focus-hold button, which allows photographers to lock focus at a specific distance, facilitating ease of use during complex shoots. This lens stands out for its ability to produce images with exceptional color fidelity, contrast, and resolution, making it a valuable addition to any professional photographer's toolkit.

Sony SAL135F28 F.A.Q.

What are the key features of the Sony SAL135F28 lens?

The Sony SAL135F28 is a 135mm F2.8 STF (Smooth Trans Focus) lens, designed to deliver smooth and beautiful bokeh. It features an apodization filter to enhance defocusing effects and a circular aperture for natural-looking out-of-focus areas.

How do I achieve the best bokeh effect with the Sony SAL135F28?

To achieve the best bokeh with the SAL135F28, use a wide aperture setting to maximize the defocusing effect. Position your subject away from the background to enhance the bokeh, and use the STF feature to smooth out the transition from in-focus to out-of-focus areas.

How can I maintain the Sony SAL135F28 lens for optimal performance?

Regularly clean the lens with a microfiber cloth and lens cleaning solution. Avoid touching the lens elements with your fingers. Store the lens in a dry, dust-free environment, and use a lens cap when not in use to protect against scratches and dust.

What should I do if the autofocus on my Sony SAL135F28 is not working?

First, ensure that the camera body is set to autofocus mode. Clean the electrical contacts on both the lens and camera body with a dry cloth. If the problem persists, try using the lens with another camera to determine if the issue is with the lens or the camera body.

Is the Sony SAL135F28 lens weather-sealed?

The Sony SAL135F28 lens does not feature weather-sealing. It is recommended to use this lens in dry conditions and to take precautions when shooting in adverse weather to prevent moisture ingress.

How do I switch between manual and autofocus on the Sony SAL135F28?

You can switch between manual and autofocus by using the focus mode switch located on the lens barrel. Ensure that your camera body is also set to the corresponding focus mode to use the desired setting effectively.

What is the best way to store the Sony SAL135F28 lens when not in use?

Store the lens with both the front and rear lens caps on to prevent dust accumulation. Keep it in a padded lens case or camera bag in a cool, dry place to avoid humidity and temperature extremes.

How can I reduce lens flare when using the Sony SAL135F28?

To reduce lens flare, use a lens hood to block stray light. Avoid shooting directly into strong light sources, and try to angle the lens to minimize reflections within the lens elements.

What type of filter size does the Sony SAL135F28 lens accept?

The Sony SAL135F28 lens accepts 72mm screw-on filters. Ensure you use the correct size to avoid vignetting and ensure proper fit.

Can the Sony SAL135F28 be used with a teleconverter for increased focal length?

The Sony SAL135F28 can be used with compatible Sony teleconverters, but note that using a teleconverter may affect autofocus performance and image quality. Always check compatibility with your specific teleconverter model.