Sony TX7 vs Sony A77

Below is a complete analysis of the Sony TX7 and Sony A77, one being a Ultracompact and the latter is a Advanced DSLR and both of them are sold by Sony. There exists a big gap between the image resolutions of the TX7 (10MP) and A77 (24MP) and the TX7 (1/2.4") and A77 (APS-C) provide different sensor dimensions.

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The TX7 was manufactured 21 months prior to the A77 which makes them a generation apart from one another. Each of the cameras feature different body design with the Sony TX7 being a Ultracompact camera and the Sony A77 being a Mid-size SLR camera.

Before getting right into a more detailed comparison, here is a brief summary of how the TX7 grades against the A77 when it comes to portability, imaging, features and an overall grade.

The following is a preview of the gallery images for Sony Cyber-shot DSC-TX7 and Sony SLT-A77. The entire galleries are available at Sony TX7 Gallery and Sony A77 Gallery.

If you are going to lug around your camera regularly, you need to consider its weight and proportions. The Sony TX7 provides outside measurements of 98mm x 60mm x 18mm (3.9" x 2.4" x 0.7") having a weight of 149 grams (0.33 lbs) and the Sony A77 has measurements of 143mm x 104mm x 81mm (5.6" x 4.1" x 3.2") and a weight of 732 grams (1.61 lbs).

Take a look at the Sony TX7 and Sony A77 in the new Camera and Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary dependant on the lens you use at the time. Underneath is a front view dimensions comparison of the TX7 versus the A77.

Factoring in dimensions and weight, the portability grade of the TX7 and A77 is 95 and 59 respectively.

Sometimes, it is very difficult to picture the difference between sensor measurements simply by looking at a spec sheet. The graphic below will help give you a much better sense of the sensor measurements in the TX7 and A77.

As you can see, both of these cameras feature different megapixels and different sensor measurements. The TX7 due to its tinier sensor is going to make achieving shallower depth of field trickier and the Sony A77 will give you extra detail due to its extra 14MP. Higher resolution will also let you crop shots way more aggressively. The older TX7 is going to be behind with regard to sensor tech.