Olympus TG-630 iHS vs Pentax 645Z

Following is a thorough comparison of the Olympus TG-630 iHS vs Pentax 645Z, one is a Waterproof and the latter is a Pro DSLR by competitors Olympus and Pentax. There exists a huge gap among the sensor resolutions of the TG-630 iHS (12MP) and 645Z (51MP) and the TG-630 iHS (1/2.3") and 645Z (Medium format) provide totally different sensor sizing.

Pentax 17 Pre-Orders Outperform Expectations by a Landslide

The TG-630 iHS was unveiled 15 months prior to the 645Z which makes them a generation away from one another. Each of these cameras have different body design with the Olympus TG-630 iHS being a Compact camera and the Pentax 645Z being a Large SLR camera.

Before diving straight to a complete comparison, here is a concise summary of how the TG-630 iHS matches up against the 645Z with respect to portability, imaging, features and an overall score.

This is a preview of the gallery photos for Olympus TG-630 iHS and Pentax 645Z. The full galleries are available at Olympus TG-630 iHS Gallery and Pentax 645Z Gallery.

In case you're looking to carry around your camera often, you're going to have to factor in its weight and proportions. The Olympus TG-630 iHS has got exterior dimensions of 98mm x 66mm x 22mm (3.9" x 2.6" x 0.9") accompanied by a weight of 167 grams (0.37 lbs) whilst the Pentax 645Z has measurements of 156mm x 117mm x 123mm (6.1" x 4.6" x 4.8") with a weight of 1550 grams (3.42 lbs).

Check out the Olympus TG-630 iHS vs Pentax 645Z in the all new Camera with Lens Size Comparison Tool.

Don't forget, the weight of an Interchangeable Lens Camera will vary based on the lens you are working with at that time. Following is a front view dimensions comparison of the TG-630 iHS versus the 645Z.

Taking into consideration dimensions and weight, the portability rating of the TG-630 iHS and 645Z is 94 and 49 respectively.

Typically, it is very tough to envision the gap in sensor sizes just by seeing a spec sheet. The pic below should give you a far better sense of the sensor sizes in the TG-630 iHS and 645Z.

Clearly, both of the cameras provide different resolutions and different sensor sizes. The TG-630 iHS with its smaller sensor will make getting shallow DOF tougher and the Pentax 645Z will show more detail having an extra 39MP. Higher resolution can also allow you to crop pictures more aggressively. The more aged TG-630 iHS will be behind in sensor tech.