Panasonic S1R vs Pentax K100D S

On this page, we are contrasting the Panasonic S1R vs Pentax K100D S, one being a Pro Mirrorless and the other is a Entry-Level DSLR by companies Panasonic and Pentax. There is a huge difference between the resolutions of the S1R (47MP) and K100D S (6MP) and the S1R (Full frame) and K100D S (APS-C) provide totally different sensor sizing.

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The S1R was unveiled 11 years later than the K100D S and that is quite a significant gap as far as tech is concerned. Each of these cameras have different body design with the Panasonic S1R being a SLR-style mirrorless camera and the Pentax K100D S being a Compact SLR camera.

Before we go straight to a in depth comparison, here is a short summary of how the S1R scores versus the K100D S in regards to portability, imaging, features and an overall rating.

Below is a sample of the gallery pics for Panasonic Lumix DC-S1R and Pentax K100D Super. The full galleries are viewable at Panasonic S1R Gallery and Pentax K100D S Gallery.

If you are looking to carry your camera regularly, you are going to need to think about its weight and volume. The Panasonic S1R has outside measurements of 149mm x 110mm x 97mm (5.9" x 4.3" x 3.8") with a weight of 1020 grams (2.25 lbs) while the Pentax K100D S has sizing of 129mm x 91mm x 71mm (5.1" x 3.6" x 2.8") having a weight of 646 grams (1.42 lbs).

Take a look at the Panasonic S1R vs Pentax K100D S in the new Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will differ depending on the lens you use at that time. Here is a front view dimension comparison of the S1R against the K100D S.

Looking at size and weight, the portability score of the S1R and K100D S is 54 and 65 respectively.

Usually, it is tough to envision the difference between sensor sizing simply by checking technical specs. The graphic below may provide you a much better sense of the sensor sizing in the S1R and K100D S.

As you have seen, both cameras have different resolutions and different sensor sizing. The S1R with its larger sensor will make shooting shallow DOF less difficult and the Panasonic S1R will give more detail having an extra 41MP. Greater resolution will also help you crop photos a bit more aggressively. The more modern S1R is going to have a benefit in sensor technology.