Pentax K10D vs Sigma SD1

Below is a extended review of the Pentax K10D vs Sigma SD1, both Advanced DSLR digital cameras by companies Pentax and Sigma. There is a large difference between the image resolutions of the K10D (10MP) and SD1 (15MP) but both cameras offer the same sensor dimensions (APS-C).

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The K10D was launched 4 years before the SD1 and that is quite a serious difference as far as tech is concerned. Both the cameras have the same body design (Mid-size SLR).

Before we go right into a step-by-step comparison, here is a short view of how the K10D matches up against the SD1 when it comes to portability, imaging, features and an overall grade.

The following is a sample of the gallery pictures for Pentax K10D & Sigma SD1. The complete galleries are viewable at Pentax K10D Gallery & Sigma SD1 Gallery.

In case you're looking to lug around your camera regularly, you'll have to factor its weight and proportions. The Pentax K10D features outside measurements of 142mm x 101mm x 70mm (5.6" x 4.0" x 2.8") along with a weight of 793 grams (1.75 lbs) while the Sigma SD1 has measurements of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") with a weight of n/a grams (0.00 lbs).

Take a look at the Pentax K10D vs Sigma SD1 in our brand new Camera & Lens Size Comparison Tool.

Remember that, the weight of an ILC will change dependant on the lens you select at the time. Here is a front view over all size comparison of the K10D versus the SD1.

Considering size and weight, the portability rating of the K10D and SD1 is 59 and 77 respectively.

Generally, its difficult to visualise the difference between sensor measurements simply by reading a spec sheet. The graphic below might give you a clearer sense of the sensor measurements in the K10D and SD1.

As you can see, both the cameras provide the same sensor dimensions but not the same resolution. You can anticipate the Sigma SD1 to deliver more detail utilizing its extra 5MP. Greater resolution can also allow you to crop images more aggressively. The older K10D is going to be disadvantaged when it comes to sensor tech.