CAMERA

Sony Alpha A58 Digital SLT Camera (Part 1)

8/12/2013 9:24:05 AM

The 20.1 megapixel Sony Alpha A58 DSLT is the newest Sony camera with interchangeable lens and translucent mirror technology and is designed to replace both the Sony Alpha A37 and A57, provides simplicity for users of Sony Alpha DSLT.

Features

Sony Alpha A58 DSLT

Sony Alpha A58 DSLT

Sony Alpha A58 DSLT has a new 20.1 megapixel Exmor CMOS APS-C sensor, with ISO100 to ISO16000, and a BIONZ image processor for improving image detail with low noise. The camera includes SteadyShot INSIDE, which reflect the motion sensor of any camera shake. Sony Translucent Mirror Technology means it uses a translucent mirror with autofocus sensor separately, allowing continuous AF, and mirror does not need to move while shooting. Due to using the mirror technology, camera does not feature optical viewfinder as other Digital SLR, but instead has an electronic viewfinder - this model boasts a 1.44million dot OLED viewfinder with eye – detection sensor, and the back is the flip screen of 460K dot.

The camera can be replaced with translucent mirror technology

The camera can be replaced with translucent mirror technology

Auto objects framing, will automatically frame portraits, macro or AF Tracking, and cut while also retaining the original image. This function is an update to the auto portrait framing on previous model, and can be disabled if necessary. Lock on AF is another new feature, which will automatically recognize the size and track objects moving accordingly. New 20.1 megapixel sensor offers ISO 100 to ISO 16000, with area based on noise reduction to improve low light performance.

Introduced with Sony Alpha A58 is a new kit lens, the Sony DT f/3.5-5.6 18-55mm SAM II (Model SAL18552). The lens has newly-designed tail lens to prevent flare and ghost, while the mechanical components are upgraded to more active and comfortable.

15-point AF system with 3 cross-sensors

15-point AF system with 3 cross-sensors

Key Features

·         20.1 megapixel APS-C Exmor CMOS sensor

·         2.7inch 460k dot tilting screen

·         1.44k dot OLED EVF (SVGA)

·         SteadyShot INSIDE™ image stabilization sensor

·         15-point AF system with 3 cross-sensor

·         New ISO standard hot-shoe with Multi Terminal (Ni) port

·         Panoramic shooting

·         1080/60i/24p Full AVCHD™ or 1080/30p MP4

·         ISO100 - 16000, Multi-frame noise reduction

·         5fps continuous shooting with AF / 8fps at 5mp

·         Auto HDR / Picture effects / Hand-held twilight

·         Memory Stick PRO Duo / SD/SDHC/SDCX Memory Slot

Handling

ISO standard flash hot-shoe

ISO standard flash hot-shoe

At the top you will notice that A58 has followed Sony Alpha and NEX cameras and has a more ISO standard flash hot-shoe, with a Terminal Multi Ni accessory port. Included in the box is an adapter to convert it back to the old style of Sony flash plug if necessary. In front of the shutter release button is a control wheel to adjust aperture or shutter based on the mode you use.

There is a front grip, for high barrier levels because it is made of rubber. On the rear is a good sized thumb grip, but it's made ​​of plastic and not rubber as front grip. Electronic viewfinder is the same resolution as the Sony Alpha A57; however, this new model is OLED instead of LCD, and looks good with clear display.

Also on the back is menu button, video, AEL, exposure, FN, and Playback and (Help), with a four-way control and middle AF button. Four-way control allows quick access to DISP, Drive, WB and Creative shooting effects.

The 2.7 inch screen features a 460k dot resolution and tilts up and down

The 2.7 inch screen features a 460k dot resolution and tilts up and down

The 2.7inch screen has a 460k dot resolution and tilts up and down, though does not look good when no direct angle. The menu is clear and easy to use, and many setups can be adjusted with the Fn button on the screen. Under the camera has a tripod jack and battery with a memory card, access from the side.

Plastic lens mount, while the previous model, A37 and A35 has a metal lens metal mount, although this is only in the front, with the rear of the ring is also made ​​of plastic (on the previous model too) . Whether this will affect the reliability of the camera has not been detected, but did not cause any problems unless you regularly and roughly, change your lens. The appearance of the plastic lens mount that makes camera looks unfinished when viewed without the lens attached.

Battery life


Battery life is rated at 690-700 shots

Battery life is rated at 690-700 shots

Battery life is rated 690-700 shoots according to Sony / CIPA test results, with long battery life when using the LCD screen.

Speed

After shooting 8 JPEG shots in continuous mode, the camera slows to roughly 2 to 3fps

After shooting 8 JPEG shots in continuous mode, the camera slows to roughly 2 to 3fps

We took some photos to test the response of the camera, from the opening of the first photo, turn over each one in turn, focus speed, etc.... We have some photos and then use average to ensure the accuracy and consistency, makes it easy to compare with other cameras.

Sony Alpha A58

·         Shutter Response: 0.05s

·         Wide - Focus / Shutter Response: 0.125s

·         Full zoom - Focus / Shutter Response: 0.125s

·         Switch on Time to Taking a Photo: 2.1s

·         Shot to Shot without Flash: 0.6s

·         Shot to Shot with Flash: 0.8s

·         Continuous Shooting - JPEG: 5fps (8 shots)

·         Continuous Shooting - Flash: 0.8s

·         Continuous Shooting - RAW: 5fps (6 shots)

Sony RX100

·         Shutter Response: 0.0s

·         Wide - Focus / Shutter Response: 0.3s

·         Full zoom - Focus / Shutter Response: 0.3s

·         Switch on Time to Taking a Photo: 2.2s

·         Shot to Shot without Flash: 0.9s

·         Shot to Shot with Flash: 2.1s

·         Continuous Shooting - JPEG: 7fps (15 shots)

·         Continuous Shooting - Flash: 1.6s

·         Continuous Shooting - Flash: 4fps (13 shots)

After shooting 8 JPEG shoots in continuous mode, the camera slows to roughly 2 to 3 fps. There is a high speed continuous shooting mode on the rotating wheels that shoots at 8 fps at a resolution of 5 megapixels, after 15 shots it slows to 4 to 5 fps.

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