Pentax 645D vs Pentax E70

On this page, we will be looking at the Pentax 645D and Pentax E70, former being a Pro DSLR while the latter is a Small Sensor Compact and both of them are produced by Pentax. There is a substantial difference between the sensor resolutions of the 645D (40MP) and E70 (10MP) and the 645D (Medium format) and E70 (1/2.3") have different sensor measurements.

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The 645D was revealed 15 months later than the E70 which makes them a generation apart from each other. Both the cameras have different body design with the Pentax 645D being a Large SLR camera and the Pentax E70 being a Compact camera.

Before we go straight to a detailed comparison, here is a brief view of how the 645D matches up versus the E70 for portability, imaging, features and an overall rating.

This is a preview of the gallery images for Pentax 645D & Pentax Optio E70. The full galleries are viewable at Pentax 645D Gallery & Pentax E70 Gallery.

In case you're aiming to carry your camera often, you should consider its weight and proportions. The Pentax 645D features external dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs) whilst the Pentax E70 has measurements of 94mm x 61mm x 26mm (3.7" x 2.4" x 1.0") along with a weight of 175 grams (0.39 lbs).

Analyze the Pentax 645D and Pentax E70 in our brand new Camera & Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change dependant on the lens you select at that moment. Underneath is a front view dimensions comparison of the 645D against the E70.

Considering size and weight, the portability score of the 645D and E70 is 50 and 94 respectively.

Often, its hard to picture the difference between sensor sizing only by reading specifications. The photograph below should give you a much better sense of the sensor dimensions in the 645D and E70.

Plainly, both cameras provide different megapixels and different sensor sizing. The 645D using its bigger sensor is going to make shooting shallow DOF simpler and the Pentax 645D will deliver greater detail because of its extra 30 Megapixels. Higher resolution will help you crop shots more aggressively. The younger 645D should have an advantage with regard to sensor innovation.