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Sony SLT-A35

APS-C AF digital SLT camera

Specification

Production details
Announced:June 2011
System: Sony A APS-C (2006)
Imaging plane
Maximum format:APS-C
Mount and Flange focal distance:Minolta/Sony A [44.5mm]
Imaging plane:23.5 × 15.6mm CMOS sensor
Resolution:4912 × 3264 - 16 MP
Shutter
Type:Focal-plane
Model:Electronically controlled
Speeds:30 - 1/4000 + B
Sensor-shift image stabilization:Yes
Exposure
Exposure metering:Through-the-lens (TTL)
Exposure modes:Programmed Auto
Aperture-priority Auto
Shutter-priority Auto
Manual
Physical characteristics
Weight:415g
Dimensions:124.4x92x84.7mm

Manufacturer description

SAN DIEGO, June 8, 2011 -- Light, compact and easy to use, Sony’s new α35 (SLT-A35) interchangeable lens camera brings pro-style shooting speeds and diverse creative options to photographers of all abilities.

Building on the acclaimed α33 and α55 models, the α35 camera with Sony’s Translucent Mirror Technology allows responsive, accurate continuous autofocus - whether shooting high-speed still photos or recording full HD movies.

“Our Translucent Mirror Technology continues to push the limits of modern DSLR technology,” said Kristen Elder, director of the alpha digital imaging business at Sony Electronics. “The new α35 camera combines this unique innovation with a newly developed APS HD CMOS sensor and a diverse, user-friendly interface, making it a compelling choice for experienced photographers and first-time SLR buyers alike.”

She added, “Amateur photographers will appreciate the on-screen Help Guide, which gives a clear explanation of selected functions and how they’re used. More advanced photographers will welcome features such as a top panel-mounted button that is fully customizable, allowing instant recall of any one of 14 frequently-used functions according to their preference.”

Premium, High-Speed Performance

Making its debut on the α35 camera, Tele-zoom High Speed Shooting magnifies a central portion of the image area providing an effective 1.4x magnification (appx) while shooting at up to 7 fps. Providing continuous tracking autofocus of still or moving objects, this feature is ideal for capturing fast-moving sports, children’s expressions at just the right moment or distant subjects with a high-speed burst of frames. There’s also a rapid up to5.5 fps drive mode that offers full-resolution continuous shooting with tracking AF.

With a resolution of 16.2 effective megapixels, the Exmor™ APS HD CMOS sensor delivers stunningly detailed, low-noise still and HD video images. Complementing the sensor’s extremely high resolution and sensitivity, the camera’s powerful BIONZ® processor optimizes image data to assure flawless images with rich, natural color reproduction. A maximum sensitivity of ISO 12800 and extension to ISO 25600 makes it possible to capture beautifully natural still images and HD video in low light.

Advanced Quick AF Live View continuously displays a real-time output from the main image sensor during still or Full HD video shooting. Light is partially directed from the translucent mirror to an AF sensor to permit non-stop precision TTL phase-detection autofocus – a benefit not possible with traditional DSLR cameras.

Shooting stills or AVCHD™ video, users can enjoy a superbly detailed view on the high-quality 3-inch Xtra Fine LCD™ display. Sony’s TruBlack™ technology assures high-contrast images with rich, deep blacks – even when shooting outdoors.

The high-resolution Tru-Finder™ display offers a precision alternative to framing shots on the camera’s LCD. Offering an extremely detailed, high contrast image with full 100% field coverage, it’s ideal for live preview of picture effects and exposure adjustments. Accurate composition of landscapes, architecture and other scenes is enhanced by 3 selectable grid line patterns.

Creative New “Picture Effects”

The α35 model offers a new in-camera ‘Picture Effect’ setting that lets users add extra impact to stills or Full HD video during shooting, without the worry of editing images afterwards. Effects can be previewed on the camera screen, allowing photographers to see the result of a chosen effect instantly rather than post-shooting. The inspiring palette of artistic treatments includes Retro Photo, High-key, Toy Camera and Posterization.

It’s also easy to produce dramatic Partial Color effects, with a single color highlighted against the rest of the image in monochrome. This popular effect is normally achieved through a series of painstaking steps using photo editing software. With the new α35 camera it’s both automatic and instant.

Improved Battery Life and Compatible α Accessories

Reductions in power consumption boost the camera’s battery life to a generous 440 still shots (approx. when using the rear LCD panel) between battery charges – a 30 percent increase over its predecessor.

The α35 model is compatible with the full range of 32 A-mount interchangeable lenses that includes six Carl Zeiss® lenses, as well as the full range of alpha accessories including flashes, carrying cases, LCD monitors and more.

The new camera is compatible with Sony’s full line of SD memory cards, including the newest Class 10 versions, as well as the Memory Stick PRO-HG™ Duo HX series. Available in capacities up to 32 GB, both media enable higher read speeds for more stable and optimal performance by Sony hardware features such as high-speed burst shooting or HD movie shooting.

Firmware Upgrade for A33 / A55 Models

Available beginning June 20th, a firmware update for existing α33 and α55 cameras adds several creative and operational enhancements.

Support for the ‘Picture Effect’ function featured on the new α35 model is now offered. High-Speed Synch is supported during wireless operation with a compatible external flash (α55 only). Ergonomics are further improved with revised menus and a new mode that lets users switch shooting parameters overlaid on-screen for clear, uncluttered composition.

The a33 and a55 camera’s Digital Level Gauge can also be displayed when shooting via the optional CLM-V55 external LCD monitor. Frequently used features can now be custom-assigned to the D-RANGE button for rapid, menu-free access.

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35mm full frame

43.27 24 36
  • Dimensions: 36 × 24mm
  • Aspect ratio: 3:2
  • Diagonal: 43.27mm

Travellers' choice

Note

Among autofocus lenses designed for 35mm full-frame mirrorless cameras only. Speed of standard and telephoto lenses is taken into account.

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Image stabilizer

A technology used for reducing or even eliminating the effects of camera shake. Gyro sensors inside the lens detect camera shake and pass the data to a microcomputer. Then an image stabilization group of elements controlled by the microcomputer moves inside the lens and compensates camera shake in order to keep the image static on the imaging sensor or film.

The technology allows to increase the shutter speed by several stops and shoot handheld in such lighting conditions and at such focal lengths where without image stabilizer you have to use tripod, decrease the shutter speed and/or increase the ISO setting which can lead to blurry and noisy images.

Original name

Lens name as indicated on the lens barrel (usually on the front ring). With lenses from film era, may vary slightly from batch to batch.

Format

Format refers to the shape and size of film or image sensor.

35mm is the common name of the 36x24mm film format or image sensor format. It has an aspect ratio of 3:2, and a diagonal measurement of approximately 43mm. The name originates with the total width of the 135 film which was the primary medium of the format prior to the invention of the full frame digital SLR. Historically the 35mm format was sometimes called small format to distinguish it from the medium and large formats.

APS-C is an image sensor format approximately equivalent in size to the film negatives of 25.1x16.7mm with an aspect ratio of 3:2.

Medium format is a film format or image sensor format larger than 36x24mm (35mm) but smaller than 4x5in (large format).

Angle of view

Angle of view describes the angular extent of a given scene that is imaged by a camera. It is used interchangeably with the more general term field of view.

As the focal length changes, the angle of view also changes. The shorter the focal length (eg 18mm), the wider the angle of view. Conversely, the longer the focal length (eg 55mm), the smaller the angle of view.

A camera's angle of view depends not only on the lens, but also on the sensor. Imaging sensors are sometimes smaller than 35mm film frame, and this causes the lens to have a narrower angle of view than with 35mm film, by a certain factor for each sensor (called the crop factor).

This website does not use the angles of view provided by lens manufacturers, but calculates them automatically by the following formula: 114.6 * arctan (21.622 / CF * FL),

where:

CF – crop-factor of a sensor,
FL – focal length of a lens.

Mount

A lens mount is an interface — mechanical and often also electrical — between a camera body and a lens.

A lens mount may be a screw-threaded type, a bayonet-type, or a breech-lock type. Modern camera lens mounts are of the bayonet type, because the bayonet mechanism precisely aligns mechanical and electrical features between lens and body, unlike screw-threaded mounts.

Lens mounts of competing manufacturers (Canon, Nikon, Pentax, Sony etc.) are always incompatible. In addition to the mechanical and electrical interface variations, the flange focal distance can also be different.

The flange focal distance (FFD) is the distance from the mechanical rear end surface of the lens mount to the focal plane.

Lens construction

Lens construction – a specific arrangement of elements and groups that make up the optical design, including type and size of elements, type of used materials etc.

Element - an individual piece of glass which makes up one component of a photographic lens. Photographic lenses are nearly always built up of multiple such elements.

Group – a cemented together pieces of glass which form a single unit or an individual piece of glass. The advantage is that there is no glass-air surfaces between cemented together pieces of glass, which reduces reflections.

Focal length

The focal length is the factor that determines the size of the image reproduced on the focal plane, picture angle which covers the area of the subject to be photographed, depth of field, etc.

Speed

The largest opening or stop at which a lens can be used is referred to as the speed of the lens. The larger the maximum aperture is, the faster the lens is considered to be. Lenses that offer a large maximum aperture are commonly referred to as fast lenses, and lenses with smaller maximum aperture are regarded as slow.

In low-light situations, having a wider maximum aperture means that you can shoot at a faster shutter speed or work at a lower ISO, or both.

Closest focusing distance

The minimum distance from the focal plane (film or sensor) to the subject where the lens is still able to focus.

Closest working distance

The distance from the front edge of the lens to the subject at the maximum magnification.

Magnification ratio

Determines how large the subject will appear in the final image. For example, a magnification ratio of 1:1 means that the image of the subject formed on the film or sensor will be the same size as the subject in real life. For this reason, a 1:1 ratio is often called "life-size".

Manual focus override in autofocus mode

Allows to perform final focusing manually after the camera has locked the focus automatically. Note that you don't have to switch camera and/or lens to manual focus mode.

Manual focus override in autofocus mode

Allows to perform final focusing manually after the camera has locked the focus automatically. Note that you don't have to switch camera and/or lens to manual focus mode.

Electronic manual focus override is performed in the following way: half-press the shutter button, wait until the camera has finished the autofocusing and then focus manually without releasing the shutter button using the focusing ring.

Electromagnetic diaphragm control system

Provides highly accurate diaphragm control and stable auto exposure performance during continuous shooting.

Manual diaphragm

The diaphragm must be stopped down manually by rotating the detent aperture ring.

Preset diaphragm

The lens has two rings, one is for pre-setting, while the other is for normal diaphragm adjustment. The first ring must be set at the desired aperture, the second ring then should be fully opened for focusing, and turned back for stop down to the pre-set value.

Semi-automatic diaphragm

The lens features spring mechanism in the diaphragm, triggered by the shutter release, which stops down the diaphragm to the pre-set value. The spring needs to be reset manually after each exposure to re-open diaphragm to its maximum value.

Automatic diaphragm

The camera automatically closes the diaphragm down during the shutter operation. On completion of the exposure, the diaphragm re-opens to its maximum value.

Fixed diaphragm

The aperture setting is fixed at F/ on this lens, and cannot be adjusted.

Number of blades

As a general rule, the more blades that are used to create the aperture opening in the lens, the rounder the out-of-focus highlights will be.

Some lenses are designed with curved diaphragm blades, so the roundness of the aperture comes not from the number of blades, but from their shape. However, the fewer blades the diaphragm has, the more difficult it is to form a circle, regardless of rounded edges.

At maximum aperture, the opening will be circular regardless of the number of blades.

Weight

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

Maximum diameter x Length

Excluding case or pouch, caps and other detachable accessories (lens hood, close-up adapter, tripod adapter etc.).

For lenses with collapsible design, the length is indicated for the working (retracted) state.

Weather sealing

A rubber material which is inserted in between each externally exposed part (manual focus and zoom rings, buttons, switch panels etc.) to ensure it is properly sealed against dust and moisture.

Lenses that accept front mounted filters typically do not have gaskets behind the filter mount. It is recommended to use a filter for complete weather resistance when desired.

Fluorine coating

Helps keep lenses clean by reducing the possibility of dust and dirt adhering to the lens and by facilitating cleaning should the need arise. Applied to the outer surface of the front and/or rear lens elements over multi-coatings.

Filters

Lens filters are accessories that can protect lenses from dirt and damage, enhance colors, minimize glare and reflections, and add creative effects to images.

Lens hood

A lens hood or lens shade is a device used on the end of a lens to block the sun or other light source in order to prevent glare and lens flare. Flare occurs when stray light strikes the front element of a lens and then bounces around within the lens. This stray light often comes from very bright light sources, such as the sun, bright studio lights, or a bright white background.

The geometry of the lens hood can vary from a plain cylindrical or conical section to a more complex shape, sometimes called a petal, tulip, or flower hood. This allows the lens hood to block stray light with the higher portions of the lens hood, while allowing more light into the corners of the image through the lowered portions of the hood.

Lens hoods are more prominent in long focus lenses because they have a smaller viewing angle than that of wide-angle lenses. For wide angle lenses, the length of the hood cannot be as long as those for telephoto lenses, as a longer hood would enter the wider field of view of the lens.

Lens hoods are often designed to fit onto the matching lens facing either forward, for normal use, or backwards, so that the hood may be stored with the lens without occupying much additional space. In addition, lens hoods can offer some degree of physical protection for the lens due to the hood extending farther than the lens itself.

Teleconverters

Teleconverters increase the effective focal length of lenses. They also usually maintain the closest focusing distance of lenses, thus increasing the magnification significantly. A lens combined with a teleconverter is normally smaller, lighter and cheaper than a "direct" telephoto lens of the same focal length and speed.

Teleconverters are a convenient way of enhancing telephoto capability, but it comes at a cost − reduced maximum aperture. Also, since teleconverters magnify every detail in the image, they logically also magnify residual aberrations of the lens.

Lens caps

Scratched lens surfaces can spoil the definition and contrast of even the finest lenses. Lens covers are the best and most inexpensive protection available against dust, moisture and abrasion. Safeguard lens elements - both front and rear - whenever the lens is not in use.