Pentax X90 vs Sony A7R

Here, we will be reviewing the Pentax X90 vs Sony A7R, former is a Small Sensor Superzoom while the latter is a Pro Mirrorless by rivals Pentax and Sony. There is a large difference between the resolutions of the X90 (12MP) and A7R (36MP) and the X90 (1/2.3") and A7R (Full frame) offer different sensor measurements.

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The X90 was released 4 years prior to the A7R which is quite a serious difference as far as tech is concerned. Both of the cameras feature different body design with the Pentax X90 being a SLR-like (bridge) camera and the Sony A7R being a SLR-style mirrorless camera.

Before getting into a step-by-step comparison, here is a short summation of how the X90 matches up versus the A7R in regards to portability, imaging, features and an overall score.

The following is a preview of the gallery images for Pentax X90 & Sony Alpha A7R. The complete galleries are provided at Pentax X90 Gallery & Sony A7R Gallery.

If you are intending to carry around your camera frequently, you need to factor its weight and volume. The Pentax X90 has outer dimensions of 111mm x 85mm x 110mm (4.4" x 3.3" x 4.3") and a weight of 428 grams (0.94 lbs) while the Sony A7R has sizing of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") accompanied by a weight of 465 grams (1.03 lbs).

Contrast the Pentax X90 vs Sony A7R in our completely new Camera plus Lens Size Comparison Tool.

Take into account, the weight of an ILC will differ based on the lens you are employing at that time. Following is a front view overall size comparison of the X90 vs the A7R.

Taking into account size and weight, the portability score of the X90 and A7R is 69 and 78 respectively.

Usually, it's difficult to imagine the gap between sensor sizes merely by reading technical specs. The image underneath will give you a clearer sense of the sensor dimensions in the X90 and A7R.

As you have seen, the 2 cameras feature different megapixels and different sensor sizes. The X90 because of its tinier sensor is going to make achieving shallower DOF trickier and the Sony A7R will offer greater detail as a result of its extra 24MP. Higher resolution can also allow you to crop photographs way more aggressively. The more aged X90 is going to be behind with regard to sensor technology.