Pentax K-01 vs Sony a1

Below, we are comparing the Pentax K-01 vs Sony a1, former being a Entry-Level Mirrorless while the other is a Pro Mirrorless by competitors Pentax and Sony. There is a noticeable difference between the sensor resolutions of the K-01 (16MP) and a1 (50MP) and the K-01 (APS-C) and a1 (Full frame) enjoy totally different sensor dimensions.

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The K-01 was launched 9 years before the a1 and that is quite a sizable difference as far as tech is concerned. The two cameras come with the identical body type (SLR-style mirrorless).

Before getting in to a full comparison, below is a brief overview of how the K-01 grades against the a1 with regards to portability, imaging, features and an overall rating.

The following is a sample of the gallery pictures for Pentax K-01 & Sony Alpha a1. The complete galleries are available at Pentax K-01 Gallery & Sony a1 Gallery.

If you're going to carry your camera regularly, you'll have to consider its weight and size. The Pentax K-01 has external dimensions of 122mm x 79mm x 58mm (4.8" x 3.1" x 2.3") and a weight of 561 grams (1.24 lbs) whilst the Sony a1 has specifications of 129mm x 97mm x 70mm (5.1" x 3.8" x 2.8") and a weight of 737 grams (1.62 lbs).

Examine the Pentax K-01 vs Sony a1 in our completely new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will change based on the lens you have attached during that time. The following is the front view physical size comparison of the K-01 compared to the a1.

Looking at size and weight, the portability rating of the K-01 and a1 is 76 and 61 respectively.

Generally, it is hard to see the difference between sensor sizing simply by reading through a spec sheet. The graphic underneath will offer you a better sense of the sensor sizes in the K-01 and a1.

Clearly, both cameras posses different resolutions and different sensor sizing. The K-01 because of its tinier sensor will make shooting bokeh trickier and the Sony a1 will give extra detail utilizing its extra 34 Megapixels. Greater resolution will help you crop pics somewhat more aggressively. The older K-01 is going to be behind in sensor tech.