Olympus 7040 vs Sony A55

Here, we are analyzing the Olympus 7040 vs Sony A55, one being a Small Sensor Compact and the other is a Entry-Level DSLR by brands Olympus and Sony. The sensor resolution of the 7040 (14MP) and the A55 (16MP) is fairly close but the 7040 (1/2.3") and A55 (APS-C) have totally different sensor measurements.

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The 7040 was unveiled 7 months before the A55 and they are both of a similar generation. The two cameras feature different body design with the Olympus 7040 being a Compact camera and the Sony A55 being a Compact SLR camera.

Before going into a comprehensive comparison, here is a brief introduction of how the 7040 matches up against the A55 in regards to portability, imaging, features and an overall grade.

Following is a sample of the gallery pictures for Olympus Stylus 7040 and Sony SLT-A55. The full galleries are provided at Olympus 7040 Gallery and Sony A55 Gallery.

For anyone who is planning to lug around your camera, you are going to need to factor its weight and proportions. The Olympus 7040 provides external dimensions of 95mm x 56mm x 26mm (3.7" x 2.2" x 1.0") and a weight of 144 grams (0.32 lbs) while the Sony A55 has measurements of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") having a weight of 500 grams (1.10 lbs).

Examine the Olympus 7040 vs Sony A55 in the new Camera and Lens Size Comparison Tool.

Always remember, the weight of an Interchangeable Lens Camera will vary based on the lens you have at that time. Underneath is a front view dimension comparison of the 7040 compared to the A55.

Factoring in size and weight, the portability grade of the 7040 and A55 is 95 and 67 respectively.

In many cases, it's hard to visualise the difference in sensor measurements merely by looking through a spec sheet. The visual underneath will help provide you a greater sense of the sensor dimensions in the 7040 and A55.

Clearly, both of those cameras come with different megapixel count and different sensor measurements. The 7040 with its smaller sensor will make shooting shallow DOF more challenging and the Sony A55 will render more detail having an extra 2MP. Greater resolution will also enable you to crop pics a good deal more aggressively. The older 7040 will be behind when it comes to sensor technology.