Olympus E-520 vs Sony A77

In this write-up, we will be contrasting the Olympus E-520 vs Sony A77, one is a Entry-Level DSLR and the latter is a Advanced DSLR by companies Olympus and Sony. There is a sizeable difference between the image resolutions of the E-520 (10MP) and A77 (24MP) and the E-520 (Four Thirds) and A77 (APS-C) use totally different sensor sizing.

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The E-520 was brought out 4 years prior to the A77 which is quite a large gap as far as tech is concerned. Both cameras offer different body type with the Olympus E-520 being a Compact SLR camera and the Sony A77 being a Mid-size SLR camera.

Before going in to a step-by-step comparison, below is a concise view of how the E-520 scores vs the A77 with regards to portability, imaging, features and an overall mark.

Following is a preview of the gallery images for Olympus E-520 and Sony SLT-A77. The entire galleries are viewable at Olympus E-520 Gallery and Sony A77 Gallery.

If you're intending to travel with your camera frequently, you will want to factor its weight and volume. The Olympus E-520 has external measurements of 136mm x 92mm x 68mm (5.4" x 3.6" x 2.7") accompanied by a weight of 552 grams (1.22 lbs) while 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).

Check the Olympus E-520 vs Sony A77 in the latest Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will differ based on the lens you have during that time. The following is the front view dimensions comparison of the E-520 vs the A77.

Looking at size and weight, the portability rating of the E-520 and A77 is 68 and 59 respectively.

Often, it is difficult to visualise the difference between sensor dimensions merely by reading through specs. The picture here will offer you a much better sense of the sensor sizing in the E-520 and A77.

As you can plainly see, both of these cameras enjoy different megapixels and different sensor dimensions. The E-520 featuring a tinier sensor will make achieving shallow depth of field tougher and the Sony A77 will give you more detail having its extra 14 Megapixels. Higher resolution can also enable you to crop pictures far more aggressively. The more aged E-520 is going to be behind in sensor innovation.