Olympus TG-820 iHS vs Pentax 645D

Let's take a deeper look at the Olympus TG-820 iHS and Pentax 645D, former is a Waterproof while the other is a Pro DSLR by rivals Olympus and Pentax. There exists a sizable gap among the sensor resolutions of the TG-820 iHS (12MP) and 645D (40MP) and the TG-820 iHS (1/2.3") and 645D (Medium format) offer totally different sensor size.

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The TG-820 iHS was unveiled 24 months after the 645D making them a generation away from one another. Both of the cameras have different body design with the Olympus TG-820 iHS being a Compact camera and the Pentax 645D being a Large SLR camera.

Before getting right into a full comparison, here is a simple synopsis of how the TG-820 iHS matches up against the 645D for portability, imaging, features and an overall score.

Here is a sample of the gallery pictures for Olympus TG-820 iHS & Pentax 645D. The full galleries are provided at Olympus TG-820 iHS Gallery & Pentax 645D Gallery.

When you are intending to carry around your camera, you should consider its weight and measurements. The Olympus TG-820 iHS features outer measurements of 101mm x 65mm x 26mm (4.0" x 2.6" x 1.0") and a weight of 206 grams (0.45 lbs) whilst the Pentax 645D has proportions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") with a weight of 1480 grams (3.26 lbs).

Look at the Olympus TG-820 iHS and Pentax 645D in our completely new Camera & Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary dependant on the lens you select at the time. Here is a front view sizing comparison of the TG-820 iHS against the 645D.

Considering dimensions and weight, the portability grade of the TG-820 iHS and 645D is 92 and 50 respectively.

Sometimes, it can be tough to see the contrast in sensor sizes only by looking through specifications. The picture below will help offer you a much better sense of the sensor sizing in the TG-820 iHS and 645D.

To sum up, both of those cameras have different resolutions and different sensor sizes. The TG-820 iHS using its smaller sensor will make getting bokeh trickier and the Pentax 645D will result in extra detail having an extra 28MP. Greater resolution will enable you to crop photos a bit more aggressively. The more recent TG-820 iHS will have an edge when it comes to sensor tech.