Canon 1Ds vs Pentax 645D

In this write-up, we will be evaluating the Canon 1Ds vs Pentax 645D, both Pro DSLR digital cameras by rivals Canon and Pentax. There is a huge difference between the sensor resolutions of the 1Ds (11MP) and 645D (40MP) and the 1Ds (Full frame) and 645D (Medium format) feature different sensor size.

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The 1Ds was brought out 8 years earlier than the 645D which is quite a significant gap as far as tech is concerned. Each of these cameras offer the identical body type (Large SLR).

Before diving through a complete comparison, below is a short overview of how the 1Ds scores versus the 645D in terms of portability, imaging, features and an overall mark.

Here is a preview of the gallery photos for Canon EOS-1Ds and Pentax 645D. The entire galleries are provided at Canon 1Ds Gallery and Pentax 645D Gallery.

If you are going to travel with your camera, you will want to factor its weight and volume. The Canon 1Ds comes with outside dimensions of 156mm x 158mm x 80mm (6.1" x 6.2" x 3.1") having a weight of 1585 grams (3.49 lbs) whilst the Pentax 645D has sizing of 156mm x 117mm x 119mm (6.1" x 4.6" x 4.7") with a weight of 1480 grams (3.26 lbs).

Take a look at the Canon 1Ds vs Pentax 645D in the new Camera and Lens Size Comparison Tool.

Take into consideration, the weight of an Interchangeable Lens Camera will vary dependant on the lens you are using during that time. Below is the front view over all size comparison of the 1Ds compared to the 645D.

Taking into account size and weight, the portability grade of the 1Ds and 645D is 50 and 50 respectively.

In many cases, it can be difficult to picture the gap between sensor dimensions purely by checking technical specs. The image below might offer you a far better sense of the sensor dimensions in the 1Ds and 645D.

As you can tell, both of these cameras enjoy different megapixel count and different sensor dimensions. The 1Ds due to its tinier sensor is going to make getting shallow DOF more challenging and the Pentax 645D will give greater detail having its extra 29MP. Higher resolution will let you crop pictures far more aggressively. The more aged 1Ds is going to be behind in sensor technology.