Olympus TG-870 vs Sigma SD1

In this article, we will be reviewing the Olympus TG-870 vs Sigma SD1, former is a Ultracompact while the latter is a Advanced DSLR by rivals Olympus and Sigma. The image resolution of the TG-870 (16MP) and the SD1 (15MP) is relatively close but the TG-870 (1/2.3") and SD1 (APS-C) feature different sensor sizing.

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The TG-870 was unveiled 5 years after the SD1 which is a fairly sizable difference as far as camera tech is concerned. The two cameras offer different body type with the Olympus TG-870 being a Ultracompact camera and the Sigma SD1 being a Mid-size SLR camera.

Before getting through a comprehensive comparison, below is a concise synopsis of how the TG-870 scores vs the SD1 in terms of portability, imaging, features and an overall mark.

This is a preview of the gallery photos for Olympus Stylus Tough TG-870 & Sigma SD1. The full galleries are available at Olympus TG-870 Gallery & Sigma SD1 Gallery.

In case you're aiming to travel with your camera regularly, you'll need to consider its weight and proportions. The Olympus TG-870 comes with outer dimensions of 113mm x 64mm x 28mm (4.4" x 2.5" x 1.1") having a weight of 221 grams (0.49 lbs) whilst the Sigma SD1 has measurements 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).

Contrast the Olympus TG-870 vs Sigma SD1 in our completely new Camera plus Lens Size Comparison Tool.

Bear in mind, the weight of an ILC will vary based on the lens you have chosen during that time. Below is the front view measurements comparison of the TG-870 versus the SD1.

Taking into consideration size and weight, the portability score of the TG-870 and SD1 is 91 and 77 respectively.

Often, it can be hard to imagine the difference in sensor dimensions merely by looking through specs. The picture below might offer you a far better sense of the sensor dimensions in the TG-870 and SD1.

As you can plainly see, both of the cameras offer different megapixel count and different sensor dimensions. The TG-870 with its smaller sensor is going to make achieving bokeh harder and the Olympus TG-870 will provide you with extra detail having an extra 1MP. Higher resolution will also make it easier to crop shots a little more aggressively. The younger TG-870 should have an advantage in sensor tech.