Olympus SH-3 vs Pentax 645D

Here is a comprehensive analysis of the Olympus SH-3 vs Pentax 645D, one being a Small Sensor Superzoom and the other is a Pro DSLR by companies Olympus and Pentax. There is a crucial difference between the sensor resolutions of the SH-3 (16MP) and 645D (40MP) and the SH-3 (1/2.3") and 645D (Medium format) enjoy different sensor size.

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The SH-3 was manufactured 6 years later than the 645D and that is quite a serious gap as far as tech is concerned. Both of these cameras come with different body type with the Olympus SH-3 being a Compact camera and the Pentax 645D being a Large SLR camera.

Before delving straight into a comprehensive comparison, below is a quick summary of how the SH-3 scores vs the 645D when considering portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Olympus Stylus SH-3 and Pentax 645D. The entire galleries are provided at Olympus SH-3 Gallery and Pentax 645D Gallery.

For those who are planning to carry your camera frequently, you'll need to factor in its weight and proportions. The Olympus SH-3 has outer dimensions of 109mm x 63mm x 42mm (4.3" x 2.5" x 1.7") with a weight of 271 grams (0.60 lbs) and the Pentax 645D has measurements of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") accompanied by a weight of 1480 grams (3.26 lbs).

Check the Olympus SH-3 vs Pentax 645D in the all new Camera and Lens Size Comparison Tool.

Remember that, the weight of an Interchangeable Lens Camera will change based on the lens you are utilizing at that moment. The following is the front view physical size comparison of the SH-3 and the 645D.

Factoring in size and weight, the portability rating of the SH-3 and 645D is 88 and 50 respectively.

Often, its difficult to visualize the gap between sensor sizing simply by reading specifications. The photograph underneath will help provide you a better sense of the sensor sizes in the SH-3 and 645D.

To sum up, each of the cameras posses different resolutions and different sensor sizing. The SH-3 due to its tinier sensor is going to make shooting shallow depth of field more challenging and the Pentax 645D will offer you greater detail due to its extra 24 Megapixels. Greater resolution can also make it easier to crop images somewhat more aggressively. The more recent SH-3 provides an advantage with regard to sensor innovation.