Olympus E-620 vs Sony A77

Here, we are matching up the Olympus E-620 vs Sony A77, one being a Entry-Level DSLR and the other is a Advanced DSLR by companies Olympus and Sony. There is a big difference between the image resolutions of the E-620 (12MP) and A77 (24MP) and the E-620 (Four Thirds) and A77 (APS-C) provide totally different sensor dimensions.

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The E-620 was manufactured 3 years earlier than the A77 and that is quite a big gap as far as tech is concerned. Each of the cameras feature different body design with the Olympus E-620 being a Compact SLR camera and the Sony A77 being a Mid-size SLR camera.

Before delving straight to a thorough comparison, here is a quick view of how the E-620 grades versus the A77 for portability, imaging, features and an overall grade.

Following is a sample of the gallery pics for Olympus E-620 and Sony SLT-A77. The entire galleries are provided at Olympus E-620 Gallery and Sony A77 Gallery.

If you are going to lug around your camera regularly, you will want to think about its weight and volume. The Olympus E-620 offers exterior dimensions of 130mm x 94mm x 60mm (5.1" x 3.7" x 2.4") having a weight of 500 grams (1.10 lbs) and the Sony A77 has sizing of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") having a weight of 732 grams (1.61 lbs).

Contrast the Olympus E-620 vs Sony A77 in the latest Camera and Lens Size Comparison Tool.

Keep in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you are using at the time. Below is a front view proportions comparison of the E-620 and the A77.

Factoring in size and weight, the portability rating of the E-620 and A77 is 71 and 59 respectively.

Often, it is very hard to envision the contrast between sensor measurements simply by checking specs. The photograph below will help give you a far better sense of the sensor sizes in the E-620 and A77.

As you can plainly see, each of these cameras feature different megapixel count and different sensor measurements. The E-620 because of its tinier sensor will make shooting shallower depth of field more challenging and the Sony A77 will resolve greater detail due to its extra 12MP. Greater resolution will allow you to crop pics way more aggressively. The older E-620 is going to be behind when it comes to sensor innovation.