Pentax K-70 vs Sony A33

Below is a in-depth comparison of the Pentax K-70 and Sony A33, both Entry-Level DSLR cameras by competitors Pentax and Sony. There is a sizeable difference among the resolutions of the K-70 (24MP) and A33 (14MP) but both cameras boast the same sensor dimensions (APS-C).

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The K-70 was released 5 years later than the A33 and that is a fairly large gap as far as camera tech is concerned. Both of the cameras have the same body design (Compact SLR).

Before going right into a step-by-step comparison, here is a concise summation of how the K-70 grades vs the A33 with regards to portability, imaging, features and an overall grade.

Following is a sample of the gallery pictures for Pentax K-70 and Sony SLT-A33. The complete galleries are available at Pentax K-70 Gallery and Sony A33 Gallery.

If you're intending to lug around your camera frequently, you will want to factor its weight and volume. The Pentax K-70 enjoys exterior measurements of 126mm x 93mm x 74mm (5.0" x 3.7" x 2.9") with a weight of 688 grams (1.52 lbs) while the Sony A33 has sizing of 124mm x 92mm x 85mm (4.9" x 3.6" x 3.3") along with a weight of 500 grams (1.10 lbs).

Take a look at the Pentax K-70 and Sony A33 in the latest Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will differ based on the lens you have attached at that time. Underneath is a front view dimension comparison of the K-70 versus the A33.

Factoring in size and weight, the portability score of the K-70 and A33 is 62 and 67 respectively.

Generally, it is tough to visualise the difference in sensor measurements purely by going through specs. The photograph below may provide you a more clear sense of the sensor sizing in the K-70 and A33.

All in all, both cameras provide the same sensor dimensions but not the same megapixels. You should anticipate the Pentax K-70 to produce more detail as a result of its extra 10 Megapixels. Greater resolution can also let you crop images more aggressively. The newer K-70 is going to have an edge with regard to sensor technology.