Panasonic G1 vs Pentax K100D

Its time to look a bit more in depth at the Panasonic G1 vs Pentax K100D, former being a Entry-Level Mirrorless while the latter is a Entry-Level DSLR by rivals Panasonic and Pentax. There is a considerable difference among the image resolutions of the G1 (12MP) and K100D (6MP) and the G1 (Four Thirds) and K100D (APS-C) provide different sensor sizes.

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The G1 was introduced 2 years later than the K100D and that is a fairly large difference as far as camera tech is concerned. The two cameras feature different body design with the Panasonic G1 being a SLR-style mirrorless camera and the Pentax K100D being a Compact SLR camera.

Before getting into a step-by-step comparison, here is a simple view of how the G1 grades versus the K100D with regards to portability, imaging, features and an overall rating.

Here is a preview of the gallery images for Panasonic Lumix DMC-G1 & Pentax K100D. The whole galleries are available at Panasonic G1 Gallery & Pentax K100D Gallery.

When you are planning to carry your camera often, you need to factor its weight and size. The Panasonic G1 provides exterior measurements of 124mm x 84mm x 45mm (4.9" x 3.3" x 1.8") having a weight of 360 grams (0.79 lbs) whilst the Pentax K100D has specifications of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") having a weight of 660 grams (1.46 lbs).

Examine the Panasonic G1 vs Pentax K100D in our completely new Camera plus Lens Size Comparison Tool.

Keep in mind, the weight of an ILC will differ based on the lens you select at that time. Below is a front view overall size comparison of the G1 and the K100D.

Factoring in size and weight, the portability rating of the G1 and K100D is 82 and 64 respectively.

In many cases, its hard to picture the contrast in sensor sizing just by going through specs. The graphic underneath will help provide you a much better sense of the sensor measurements in the G1 and K100D.

As you can plainly see, the two cameras feature different resolutions and different sensor sizing. The G1 with its smaller sensor is going to make shooting shallow DOF trickier and the Panasonic G1 will produce greater detail using its extra 6MP. Higher resolution will allow you to crop shots way more aggressively. The newer G1 should have a benefit in sensor innovation.