Olympus SP-820UZ vs Sony A77

Lets examine more closely at the Olympus SP-820UZ versus Sony A77, one being a Small Sensor Superzoom and the latter is a Advanced DSLR by competitors Olympus and Sony. There is a sizeable difference between the resolutions of the SP-820UZ (14MP) and A77 (24MP) and the SP-820UZ (1/2.3") and A77 (APS-C) feature different sensor sizing.

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The SP-820UZ was announced 11 months later than the A77 which means that they are both of a similar generation. Both of the cameras come with different body type with the Olympus SP-820UZ being a Compact camera and the Sony A77 being a Mid-size SLR camera.

Before delving in to a full comparison, below is a short summary of how the SP-820UZ scores versus the A77 with respect to portability, imaging, features and an overall rating.

Here is a preview of the gallery photos for Olympus Stylus SP-820UZ and Sony SLT-A77. The whole galleries are provided at Olympus SP-820UZ Gallery and Sony A77 Gallery.

If you're planning to carry your camera regularly, you're going to have to factor in its weight and size. The Olympus SP-820UZ has outside measurements of 117mm x 78mm x 93mm (4.6" x 3.1" x 3.7") accompanied by a weight of 485 grams (1.07 lbs) and the Sony A77 has specifications of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") with a weight of 732 grams (1.61 lbs).

See the Olympus SP-820UZ versus Sony A77 in the latest Camera and Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will differ dependant on the lens you use at that time. Here is the front view sizing comparison of the SP-820UZ vs the A77.

Taking into account size and weight, the portability score of the SP-820UZ and A77 is 69 and 59 respectively.

Generally, its tough to imagine the gap between sensor sizing merely by reading through specs. The graphic underneath may give you a much better sense of the sensor sizing in the SP-820UZ and A77.

All in all, both of those cameras posses different resolutions and different sensor sizing. The SP-820UZ having a tinier sensor is going to make achieving shallower depth of field tougher and the Sony A77 will give extra detail with its extra 10MP. Higher resolution will also enable you to crop photographs somewhat more aggressively. The more modern SP-820UZ provides an edge when it comes to sensor technology.