Sigma SD9 vs Sony A450

Below is a in-depth review of the Sigma SD9 versus Sony A450, one being a Advanced DSLR and the latter is a Entry-Level DSLR by manufacturers Sigma and Sony. There is a big difference among the resolutions of the SD9 (3MP) and A450 (14MP) but they come with the same exact sensor size (APS-C).

Photography Glossary

The SD9 was revealed 8 years earlier than the A450 and that is a fairly big gap as far as camera tech is concerned. The two cameras offer different body type with the Sigma SD9 being a Mid-size SLR camera and the Sony A450 being a Compact SLR camera.

Before going through a full comparison, below is a brief summation of how the SD9 scores vs the A450 when considering portability, imaging, features and an overall grade.

The following is a preview of the gallery images for Sigma SD9 and Sony Alpha DSLR-A450. The full galleries are provided at Sigma SD9 Gallery and Sony A450 Gallery.

For anybody who is looking to lug around your camera frequently, you need to factor in its weight and dimensions. The Sigma SD9 comes with outer dimensions of 152mm x 120mm x 79mm (6.0" x 4.7" x 3.1") and a weight of 950 grams (2.09 lbs) and the Sony A450 has dimensions of 137mm x 104mm x 81mm (5.4" x 4.1" x 3.2") accompanied by a weight of 560 grams (1.23 lbs).

Compare the Sigma SD9 versus Sony A450 in the new Camera with Lens Size Comparison Tool.

Remember, the weight of an Interchangeable Lens Camera will change dependant on the lens you use at that moment. Here is the front view sizing comparison of the SD9 and the A450.

Taking into account size and weight, the portability rating of the SD9 and A450 is 54 and 65 respectively.

Generally, it's tough to envision the contrast in sensor measurements purely by checking out technical specs. The photograph here might offer you a more clear sense of the sensor sizes in the SD9 and A450.

As you have seen, both of these cameras offer the same exact sensor sizing albeit not the same resolution. You should expect the Sony A450 to produce extra detail because of its extra 11MP. Higher resolution will also let you crop shots a little more aggressively. The older SD9 will be behind with regard to sensor technology.