Olympus E-300 vs Pentax K-S1

On this page, we are comparing the Olympus E-300 vs Pentax K-S1, both Advanced DSLR digital cameras by manufacturers Olympus and Pentax. There is a big difference between the resolutions of the E-300 (8MP) and K-S1 (20MP) and the E-300 (Four Thirds) and K-S1 (APS-C) posses totally different sensor sizes.

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The E-300 was launched 10 years earlier than the K-S1 which is quite a big gap as far as tech is concerned. The two cameras have the same body design (Mid-size SLR).

Before delving straight to a in depth comparison, here is a quick highlight of how the E-300 matches up vs the K-S1 in relation to portability, imaging, features and an overall score.

Below is a sample of the gallery pics for Olympus E-300 and Pentax K-S1. The complete galleries are provided at Olympus E-300 Gallery and Pentax K-S1 Gallery.

If you are going to carry around your camera regularly, you're going to have to take into account its weight and dimensions. The Olympus E-300 offers external measurements of 147mm x 85mm x 64mm (5.8" x 3.3" x 2.5") and a weight of 624 grams (1.38 lbs) while the Pentax K-S1 has dimensions of 121mm x 93mm x 70mm (4.8" x 3.7" x 2.8") along with a weight of 558 grams (1.23 lbs).

Take a look at the Olympus E-300 vs Pentax K-S1 in the new Camera with Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will change depending on the lens you have attached during that time. Underneath is a front view sizing comparison of the E-300 versus the K-S1.

Factoring in size and weight, the portability rating of the E-300 and K-S1 is 67 and 69 respectively.

Often, its hard to visualise the contrast between sensor sizes simply by checking specs. The picture below will give you a better sense of the sensor measurements in the E-300 and K-S1.

As you can plainly see, each of these cameras provide different megapixels and different sensor sizes. The E-300 due to its tinier sensor will make getting shallower depth of field tougher and the Pentax K-S1 will give you extra detail utilizing its extra 12MP. Greater resolution will also help you crop images more aggressively. The more aged E-300 is going to be disadvantaged when it comes to sensor innovation.