Pentax 645D vs Pentax E85

Lets look a bit more in depth at the Pentax 645D vs Pentax E85, one being a Pro DSLR and the latter is a Small Sensor Compact and they are both designed by Pentax. There is a big difference among the image resolutions of the 645D (40MP) and E85 (12MP) and the 645D (Medium format) and E85 (1/2.3") use different sensor sizes.

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The 645D was unveiled 6 months later than the E85 so they are both of a similar generation. Each of the cameras offer different body type with the Pentax 645D being a Large SLR camera and the Pentax E85 being a Compact camera.

Before getting straight into a step-by-step comparison, below is a quick overview of how the 645D matches up against the E85 when considering portability, imaging, features and an overall grade.

Here is a preview of the gallery images for Pentax 645D and Pentax Optio E85. The full galleries are provided at Pentax 645D Gallery and Pentax E85 Gallery.

When you are aiming to lug around your camera, you are going to need to consider its weight and proportions. The Pentax 645D enjoys outer measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") having a weight of 1480 grams (3.26 lbs) while the Pentax E85 has measurements of 93mm x 58mm x 24mm (3.7" x 2.3" x 0.9") along with a weight of 145 grams (0.32 lbs).

Check the Pentax 645D vs Pentax E85 in the all new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will vary based on the lens you have at that moment. Here is the front view size comparison of the 645D vs the E85.

Using size and weight, the portability rating of the 645D and E85 is 50 and 95 respectively.

Generally, it can be tough to visualize the gap in sensor measurements purely by researching technical specs. The photograph below may give you a far better sense of the sensor sizing in the 645D and E85.

As you have seen, the two cameras enjoy different megapixels and different sensor measurements. The 645D using its bigger sensor is going to make shooting shallower DOF less difficult and the Pentax 645D will provide you with extra detail having an extra 28MP. Higher resolution can also allow you to crop pictures far more aggressively.