Pentax K100D vs Sony G3

Here is a complete review of the Pentax K100D vs Sony G3, former being a Entry-Level DSLR while the other is a Small Sensor Compact by brands Pentax and Sony. There is a noticeable difference among the sensor resolutions of the K100D (6MP) and G3 (10MP) and the K100D (APS-C) and G3 (1/2.3") enjoy different sensor size.

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The K100D was released 3 years earlier than the G3 and that is a fairly sizable difference as far as camera tech is concerned. Each of the cameras offer different body type with the Pentax K100D being a Compact SLR camera and the Sony G3 being a Compact camera.

Before we go straight into a step-by-step comparison, below is a brief synopsis of how the K100D grades versus the G3 in relation to portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Pentax K100D & Sony Cyber-shot DSC-G3. The complete galleries are provided at Pentax K100D Gallery & Sony G3 Gallery.

For anybody who is going to carry your camera regularly, you will need to factor in its weight and dimensions. The Pentax K100D enjoys exterior dimensions of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") and a weight of 660 grams (1.46 lbs) whilst the Sony G3 has dimensions of 97mm x 59mm x 22mm (3.8" x 2.3" x 0.9") along with a weight of 185 grams (0.41 lbs).

Check the Pentax K100D vs Sony G3 in our brand new Camera & Lens Size Comparison Tool.

Don't forget, the weight of an ILC will vary depending on the lens you select during that time. Below is the front view physical size comparison of the K100D against the G3.

Looking at size and weight, the portability grade of the K100D and G3 is 64 and 94 respectively.

Often, its hard to picture the contrast in sensor sizing purely by looking through specifications. The graphic here will provide you a better sense of the sensor dimensions in the K100D and G3.

To sum up, both cameras enjoy different megapixel count and different sensor sizing. The K100D because of its larger sensor is going to make achieving shallower DOF easier and the Sony G3 will render greater detail as a result of its extra 4MP. Greater resolution will also let you crop photos far more aggressively. The older K100D will be behind in sensor innovation.