Sigma SD1 vs Sony A900

Let's look much closer at the Sigma SD1 vs Sony A900, both Advanced DSLR digital cameras by manufacturers Sigma and Sony. There exists a noticeable gap between the image resolutions of the SD1 (15MP) and A900 (25MP) and the SD1 (APS-C) and A900 (Full frame) have totally different sensor size.

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The SD1 was manufactured 24 months later than the A900 making them a generation apart from one another. Both of these cameras have the same body design (Mid-size SLR).

Before delving straight to a detailed comparison, here is a concise synopsis of how the SD1 grades against the A900 with regards to portability, imaging, features and an overall rating.

Following is a sample of the gallery pics for Sigma SD1 & Sony Alpha DSLR-A900. The entire galleries are provided at Sigma SD1 Gallery & Sony A900 Gallery.

When you are intending to carry your camera frequently, you will need to consider its weight and size. The Sigma SD1 features external dimensions of 146mm x 113mm x 80mm (5.7" x 4.4" x 3.1") accompanied by a weight of n/a grams (0.00 lbs) and the Sony A900 has specifications of 156mm x 117mm x 82mm (6.1" x 4.6" x 3.2") having a weight of 895 grams (1.97 lbs).

Take a look at the Sigma SD1 vs Sony A900 in our brand new Camera & Lens Size Comparison Tool.

Take into consideration, the weight of an ILC will change dependant on the lens you have during that time. Following is a front view measurement comparison of the SD1 compared to the A900.

Considering dimensions and weight, the portability rating of the SD1 and A900 is 77 and 54 respectively.

More often than not, it can be difficult to envision the difference between sensor sizing simply by going over technical specs. The photograph here should give you a much better sense of the sensor dimensions in the SD1 and A900.

As you can tell, both of those cameras provide different resolutions and different sensor sizing. The SD1 because of its tinier sensor will make shooting shallow depth of field trickier and the Sony A900 will offer you extra detail due to its extra 10 Megapixels. Greater resolution can also let you crop pics more aggressively. The more modern SD1 is going to have an advantage when it comes to sensor technology.