Sony TX20 vs Sony A77

Here is a in depth analysis of the Sony TX20 versus Sony A77, former being a Ultracompact while the latter is a Advanced DSLR and both of them are designed by Sony. There is a sizable difference between the image resolutions of the TX20 (16MP) and A77 (24MP) and the TX20 (1/2.3") and A77 (APS-C) provide totally different sensor measurements.

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The TX20 was revealed 5 months later than the A77 and they are both of a similar age. Both cameras feature different body design with the Sony TX20 being a Ultracompact camera and the Sony A77 being a Mid-size SLR camera.

Before diving straight to a more detailed comparison, here is a short view of how the TX20 scores vs the A77 in relation to portability, imaging, features and an overall rating.

Here is a preview of the gallery images for Sony Cyber-shot DSC-TX20 & Sony SLT-A77. The full galleries are viewable at Sony TX20 Gallery & Sony A77 Gallery.

For those who are aiming to carry your camera often, you'll have to take into account its weight and volume. The Sony TX20 offers physical dimensions of 96mm x 56mm x 18mm (3.8" x 2.2" x 0.7") with a weight of 133 grams (0.29 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).

Check the Sony TX20 versus Sony A77 in our brand new Camera & Lens Size Comparison Tool.

Take into account, the weight of an ILC will change depending on the lens you are employing at that time. Underneath is a front view measurements comparison of the TX20 against the A77.

Considering size and weight, the portability score of the TX20 and A77 is 96 and 59 respectively.

In many cases, it is very difficult to visualise the difference between sensor sizing just by checking a spec sheet. The graphic here will offer you a better sense of the sensor sizes in the TX20 and A77.

Clearly, both cameras come with different megapixels and different sensor sizing. The TX20 with its tinier sensor will make achieving shallow depth of field harder and the Sony A77 will give extra detail because of its extra 8MP. Higher resolution can also enable you to crop shots a good deal more aggressively.