Panasonic GX1 vs Pentax K100D S

Below, we will be looking at the Panasonic GX1 vs Pentax K100D S, former being a Entry-Level Mirrorless while the latter is a Entry-Level DSLR by rivals Panasonic and Pentax. There is a noticeable difference between the resolutions of the GX1 (16MP) and K100D S (6MP) and the GX1 (Four Thirds) and K100D S (APS-C) use different sensor dimensions.

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The GX1 was announced 4 years later than the K100D S and that is quite a sizable difference as far as tech is concerned. The two cameras come with different body type with the Panasonic GX1 being a Rangefinder-style mirrorless camera and the Pentax K100D S being a Compact SLR camera.

Before getting straight into a complete comparison, below is a quick overview of how the GX1 grades against the K100D S for portability, imaging, features and an overall rating.

Following is a preview of the gallery images for Panasonic Lumix DMC-GX1 & Pentax K100D Super. The whole galleries are available at Panasonic GX1 Gallery & Pentax K100D S Gallery.

When you are aiming to carry your camera, you have to factor in its weight and proportions. The Panasonic GX1 features external dimensions of 116mm x 68mm x 39mm (4.6" x 2.7" x 1.5") along with a weight of 318 grams (0.70 lbs) while the Pentax K100D S has measurements of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") accompanied by a weight of 646 grams (1.42 lbs).

Compare the Panasonic GX1 vs Pentax K100D S in our completely new Camera & Lens Size Comparison Tool.

Remember, the weight of an ILC will change based on the lens you are working with at that moment. Below is the front view dimensions comparison of the GX1 versus the K100D S.

Using size and weight, the portability rating of the GX1 and K100D S is 87 and 65 respectively.

Oftentimes, it's hard to picture the contrast between sensor sizing simply by reading specs. The graphic here might provide you a more clear sense of the sensor sizes in the GX1 and K100D S.

As you can plainly see, the 2 cameras posses different resolutions and different sensor sizing. The GX1 having a tinier sensor is going to make achieving shallow depth of field harder and the Panasonic GX1 will offer more detail with its extra 10MP. Higher resolution will also make it easier to crop shots somewhat more aggressively. The newer GX1 should have a benefit when it comes to sensor tech.