Sigma DP1 Merrill vs Sony A7S

Following is a detailed review of the Sigma DP1 Merrill vs Sony A7S, one is a Large Sensor Compact and the other is a Pro Mirrorless by competitors Sigma and Sony. There is a big difference among the sensor resolutions of the DP1 Merrill (15MP) and A7S (12MP) and the DP1 Merrill (APS-C) and A7S (Full frame) offer different sensor sizing.

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The DP1 Merrill was revealed 3 years prior to the A7S which is a fairly big gap as far as camera tech is concerned. Both cameras feature different body design with the Sigma DP1 Merrill being a Large Sensor Compact camera and the Sony A7S being a SLR-style mirrorless camera.

Before we go straight to a in depth comparison, here is a quick view of how the DP1 Merrill matches up versus the A7S with respect to portability, imaging, features and an overall score.

This is a sample of the gallery pictures for Sigma DP1 Merrill and Sony Alpha A7S. The full galleries are available at Sigma DP1 Merrill Gallery and Sony A7S Gallery.

If you are looking to carry around your camera regularly, you need to consider its weight and measurements. The Sigma DP1 Merrill comes with physical dimensions of 122mm x 67mm x 64mm (4.8" x 2.6" x 2.5") having a weight of 330 grams (0.73 lbs) while the Sony A7S has proportions of 127mm x 94mm x 48mm (5.0" x 3.7" x 1.9") with a weight of 489 grams (1.08 lbs).

Check the Sigma DP1 Merrill vs Sony A7S in the all new Camera and Lens Size Comparison Tool.

Take into account, the weight of an Interchangeable Lens Camera will vary based on the lens you have chosen at that time. Following is a front view physical size comparison of the DP1 Merrill compared to the A7S.

Using size and weight, the portability score of the DP1 Merrill and A7S is 82 and 77 respectively.

Generally, it is very difficult to imagine the difference in sensor sizes just by researching specs. The picture here might offer you a far better sense of the sensor dimensions in the DP1 Merrill and A7S.

As you can plainly see, both of those cameras feature different resolutions and different sensor sizes. The DP1 Merrill with its smaller sensor is going to make shooting shallower depth of field tougher and the Sigma DP1 Merrill will render more detail because of its extra 3 Megapixels. Greater resolution will also allow you to crop images way more aggressively. The more aged DP1 Merrill will be behind in sensor technology.