Pentax 645D vs Sony NEX-5T

Here, we are comparing the Pentax 645D versus Sony NEX-5T, one being a Pro DSLR and the other is a Entry-Level Mirrorless by rivals Pentax and Sony. There is a crucial difference among the sensor resolutions of the 645D (40MP) and NEX-5T (16MP) and the 645D (Medium format) and NEX-5T (APS-C) have totally different sensor sizes.

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The 645D was introduced 4 years earlier than the NEX-5T and that is a fairly serious gap as far as camera tech is concerned. Each of these cameras feature different body design with the Pentax 645D being a Large SLR camera and the Sony NEX-5T being a Rangefinder-style mirrorless camera.

Before going into a thorough comparison, here is a simple synopsis of how the 645D grades against the NEX-5T in relation to portability, imaging, features and an overall rating.

Here is a sample of the gallery pictures for Pentax 645D and Sony Alpha NEX-5T. The whole galleries are viewable at Pentax 645D Gallery and Sony NEX-5T Gallery.

For those who are going to carry your camera frequently, you have to take into account its weight and proportions. The Pentax 645D enjoys exterior dimensions of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") and a weight of 1480 grams (3.26 lbs) whilst the Sony NEX-5T has measurements of 111mm x 59mm x 39mm (4.4" x 2.3" x 1.5") having a weight of 276 grams (0.61 lbs).

Check out the Pentax 645D versus Sony NEX-5T in the all new Camera and Lens Size Comparison Tool.

Bear in mind, the weight of an Interchangeable Lens Camera will differ depending on the lens you have chosen at that time. The following is a front view proportions comparison of the 645D compared to the NEX-5T.

Looking at size and weight, the portability rating of the 645D and NEX-5T is 50 and 89 respectively.

Usually, it is very tough to visualise the gap in sensor sizing purely by viewing technical specs. The photograph here will provide you a more clear sense of the sensor sizes in the 645D and NEX-5T.

As you can tell, the 2 cameras come with different megapixel count and different sensor sizing. The 645D having a larger sensor will make achieving shallower depth of field less difficult and the Pentax 645D will render greater detail using its extra 24MP. Greater resolution will also enable you to crop images a good deal more aggressively. The older 645D will be behind in sensor tech.