OM System OM-5 vs Panasonic G1

Let's look a little more closely at the OM System OM-5 and Panasonic G1, former is a Advanced Mirrorless while the other is a Entry-Level Mirrorless by rivals Olympus and Panasonic. There exists a sizable gap between the resolutions of the OM System OM-5 (20MP) and G1 (12MP) but both cameras provide the same sensor sizes (Four Thirds).

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The OM System OM-5 was brought out 13 years after the G1 which is quite a significant difference as far as technology is concerned. Each of these cameras have the same body design (SLR-style mirrorless).

Before getting right into a complete comparison, here is a brief highlight of how the OM System OM-5 matches up versus the G1 when considering portability, imaging, features and an overall mark.

This is a sample of the gallery pics for OM System OM-5 & Panasonic Lumix DMC-G1. The entire galleries are viewable at OM System OM-5 Gallery & Panasonic G1 Gallery.

For those who are intending to travel with your camera frequently, you will need to take into account its weight and dimensions. The OM System OM-5 offers external measurements of 125mm x 85mm x 50mm (4.9" x 3.3" x 2.0") accompanied by a weight of 414 grams (0.91 lbs) whilst the Panasonic G1 has dimensions of 124mm x 84mm x 45mm (4.9" x 3.3" x 1.8") having a weight of 360 grams (0.79 lbs).

Contrast the OM System OM-5 and Panasonic G1 in our brand new Camera plus Lens Size Comparison Tool.

Don't forget, the weight of an ILC will differ based on the lens you are employing at the time. Following is a front view sizing comparison of the OM System OM-5 versus the G1.

Taking into consideration dimensions and weight, the portability score of the OM System OM-5 and G1 is 80 and 82 respectively.

Normally, it is very difficult to visualise the gap between sensor dimensions only by reading through specs. The image below should provide you a better sense of the sensor sizing in the OM System OM-5 and G1.

All in all, the 2 cameras provide the same sensor dimensions but not the same resolution. You can expect to see the OM System OM-5 to give you more detail having its extra 8MP. Greater resolution can also allow you to crop photos more aggressively. The fresher OM System OM-5 will have an edge in sensor technology.