Olympus E-510 vs Pentax Q7

Here is a thorough comparison of the Olympus E-510 and Pentax Q7, one being a Advanced DSLR and the other is a Entry-Level Mirrorless by rivals Olympus and Pentax. The sensor resolution of the E-510 (10MP) and the Q7 (12MP) is very similar but the E-510 (Four Thirds) and Q7 (1/1.7") boast totally different sensor sizes.

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The E-510 was manufactured 6 years earlier than the Q7 and that is quite a large gap as far as tech is concerned. Both of these cameras feature different body design with the Olympus E-510 being a Mid-size SLR camera and the Pentax Q7 being a Rangefinder-style mirrorless camera.

Before we go into a thorough comparison, here is a short summation of how the E-510 grades versus the Q7 in relation to portability, imaging, features and an overall rating.

This is a sample of the gallery pics for Olympus E-510 and Pentax Q7. The entire galleries are viewable at Olympus E-510 Gallery and Pentax Q7 Gallery.

If you're looking to carry your camera often, you have to think about its weight and measurements. The Olympus E-510 has got outside measurements of 136mm x 92mm x 68mm (5.4" x 3.6" x 2.7") accompanied by a weight of 490 grams (1.08 lbs) and the Pentax Q7 has proportions of 102mm x 58mm x 34mm (4.0" x 2.3" x 1.3") along with a weight of 200 grams (0.44 lbs).

Contrast the Olympus E-510 and Pentax Q7 in the new Camera with Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will change dependant on the lens you are using during that time. Here is a front view overall size comparison of the E-510 compared to the Q7.

Factoring in size and weight, the portability grade of the E-510 and Q7 is 69 and 92 respectively.

In many cases, it is very hard to visualise the gap between sensor sizing only by reviewing technical specs. The graphic here should give you a greater sense of the sensor sizing in the E-510 and Q7.

As you can tell, both of these cameras come with different megapixel count and different sensor sizing. The E-510 due to its larger sensor will make shooting shallower DOF less difficult and the Pentax Q7 will deliver more detail due to its extra 2MP. Greater resolution can also make it easier to crop pics a good deal more aggressively. The older E-510 is going to be behind with regard to sensor tech.