Sony SLT-A55: A Revolutionary Camera for Professional Photographers!

Sony SLT-A55 is a powerful digital camera designed to capture impeccable images and high-quality videos. This camera features an array of cutting-edge features and technology that make it stand out from the competition.

Written by Victor Chan | Updated: Mon May 01 2023

Sony SLT-A55 article cover photo

Key Features

Aug 24 2010


16 megapixels


Sensor TypeAPS-C

Other similar cameras

Overview of the SLT-A55

As a professional photographer, having the right camera is a top priority. In recent years, the Sony SLT-A55 has become a go-to option for many photographers worldwide. This camera boasts advanced features that make it a must-have for experienced photographers who are serious about their craft. The Sony SLT-A55 combines high performance with professional-grade features that make it ideal for everything from amateur photography to professional work. So, let's dive in and explore why the Sony SLT-A55 is the camera for you!

Sony SLT-A55 Pros and Cons

Now, we will look more closely at our review of the Sony SLT-A55 camera. We will see what it can do and compare it to other cameras like it. We will tell you what's good about it and what's not so good. This way, you'll know if it's the camera for you!


16.2 megapixel sensor
Fast autofocus
Excellent image quality
Built-in image stabilization
Compact and lightweight
Full HD video recording
Electronic viewfinder
High ISO performance
GPS geotagging
Flexible LCD screen


No optical viewfinder
Limited battery life
No continuous autofocus in video mode
Limited lens selection compared to DSLR cameras
Low-light performance not as good as some competitors
Fixed LCD screen, not fully adjustable
Small buffer for continuous shooting
Some buttons and controls are small and hard to use
No built-in flash

Build and Construction

Body and dimensions

Sony SLT-A55

Weather sealed
Dimensions124 x 92 x 85mm

Weather Sealing

The Sony SLT-A55 is not sealed against water and dust, so it's important to be careful when using it in such conditions. If you often shoot in environments with water or dust, it's recommended to check out another camera with weather sealing.

Design and Handling

Main design features

View FinderElectronic
Screen TypeFully Articulated
Screen Resolution921k dots
Body typeCompact SLR

Suitable for:

PhotographyAbove Avg.
VideographyAbove Avg.
TravelAbove Avg.

LCD Screen

This camera has a fully articulated 3.00" screen, with a display resolution of 921k dots. This makes the Sony SLT-A55 very suitable for those looking for a vlogging camera as you can view yourself while shooting selfies. Unfortunately, the camera does not have a touch screen, which may make it less user-friendly.


SLT-A55 includes a electronic viewfinder with 1,150k dots of resolution with a coverage of 100% and a magnification of 0.73x. This feature enhances the camera's suitability for outdoor photography in bright conditions.

Image Quality

Sony SLT-A55 has a 16MP sized CMOS sensor. You can shoot at maximum resolution of 16 pixels. Sony SLT-A55 has a native ISO range of 100 - 12800 which can be boosted to null - 25600. It can also save files in RAW format which gives you a wider room for post processing.

Key Features

Aug 24 2010


100 - 12800

ISO Range

Extended ISOnull - 25600
Max resolution4912 x 3264 pixels

DXO Sensor Scores


73 / 102

Color Depth

23 / 26.5

Dynamic Range

12.4 / 14.8

Low Light ISO

816 / 4505

DXO mark sensor scores

The DXOmark rankings indicate that the Sony SLT-A55 camera has above average color depth performance, which refers to the number of colors the sensor can distinguish. Additionally, its dynamic range is also above average, allowing it to retain low amounts of details in both bright and dark areas of a scene. The camera's low light ISO performance is poor, which is an important factor to consider if you plan to use it in dimly lit indoor environments or at night. Overall the image quality of the SLT-A55 is average

Crop Factor

Camera crop factor (or focal length multiplier) refers to how a camera's sensor size affects the apparent field of view of a lens. Crop factor is determined by comparing the size of a camera's sensor to that of a full-frame sensor, which is a standard reference size for camera sensors.

Size comparison

Medium FormatFull FrameAPS-C (Sony, Nikon)

Crop factor calculator

Crop factor


Full frame equivalent


This camera: APS-C



Connectivity, storage, battery

StorageSD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo
Battery Life380 shots
Battery ModelNP-FW50
Wireless Connectivity


The Sony SLT-A55 supports SD/SDHC/SDXC/Memory Stick Pro Duo/ Pro-HG Duo with 1 slots for storage. This may suffice for everyday use. However, for professional applications such as wedding photography, it is not recommended as a memory card malfunction could lead to the loss of all footage.


The Sony SLT-A55 uses the NP-FW50 model of battery pack. This is rated for 380 shots shots which is high. If you intend to take photos or record videos for an extended period, it might be a good idea to bring along additional batteries.

Photography Features


The Sony SLT-A55 has built in flash which is great for event photography and in low light situations. It also offers a flash shoe that allows you to attach external flashes. This provides more versatility in your lighting choices.


The Sony SLT-A55 boasts a maximum mechanical shutter speed of 1/4000s, which is ideal for shooting fast-moving subjects in bright environments, such as in sports photography. Faster shutter speeds enable you to freeze the action and capture every detail, making it easier to get the perfect shot.

With a continuous mechanical shutter speed of n/a or an electronic shutter speed of n/a, this camera is not capable of capturing the perfect moment more easily, making it not as suited for wedding, sports, and wildlife photography. Higher shutter speeds make it easier to capture fast-paced action, ensuring that you never miss the perfect shot.


The Sony SLT-A55 includes phase detection autofocus (AF), with 15 number of focus points.

While contrast detection is generally more accurate and precise, phase detection autofocus is faster and more effective in most situations, particularly when photographing moving subjects.

Phase detection autofocus works by dividing the incoming light into pairs and then analyzing how they intersect on the camera's sensor. This method allows the camera to determine not only if a subject is in focus but also the direction and distance needed to adjust the focus to achieve perfect sharpness.

On the other hand, contrast detection autofocus works by analyzing the contrast of an image and adjusting the focus until the highest contrast is detected. While this method is very accurate, it can be slow, especially in low light conditions or when photographing moving subjects.

View on Amazon


What is the sensor size of the Sony SLT-A55?

The Sony SLT-A55 features a CMOS sensor

Is the Sony SLT-A55 weather sealed?

No the SLT-A55 does not have weather sealing.

When was the Sony SLT-A55 announced?

The Sony SLT-A55 was announced on Aug 24 2010

Does the Sony SLT-A55 have in-body image stabilization?

Yes the SLT-A55 does have in-body image stabilization that can compensate for camera shake, making it easier to shoot handheld in low light conditions.

What is the ISO range of the Sony SLT-A55?

The SLT-A55 has a native ISO range of 100-12800, which can be expanded to ISO null-25600 for even greater sensitivity in low light conditions.

View on Amazon

Similar Camera Reviews