Pentax Efina vs Sony A7R IV

Lets look a bit more in depth at the Pentax Efina vs Sony A7R IV, former is a Ultracompact while the latter is a Pro Mirrorless by brands Pentax and Sony. There is a considerable difference among the resolutions of the Efina (14MP) and A7R IV (61MP) and the Efina (1/2.3") and A7R IV (Full frame) come with different sensor sizes.

Photography Glossary

The Efina was revealed 7 years earlier than the A7R IV which is a fairly large difference as far as camera tech is concerned. Each of these cameras offer different body type with the Pentax Efina being a Ultracompact camera and the Sony A7R IV being a SLR-style mirrorless camera.

Before getting in to a thorough comparison, below is a quick summary of how the Efina matches up versus the A7R IV with respect to portability, imaging, features and an overall score.

Following is a preview of the gallery photos for Pentax Efina & Sony Alpha A7R IV. The full galleries are available at Pentax Efina Gallery & Sony A7R IV Gallery.

In case you're looking to carry around your camera often, you'll have to factor in its weight and size. The Pentax Efina enjoys external dimensions of 87mm x 54mm x 21mm (3.4" x 2.1" x 0.8") accompanied by a weight of 91 grams (0.20 lbs) and the Sony A7R IV has specifications of 129mm x 96mm x 78mm (5.1" x 3.8" x 3.1") and a weight of 665 grams (1.47 lbs).

Take a look at the Pentax Efina vs Sony A7R IV in our brand new Camera & Lens Size Comparison Tool.

Remember that, the weight of an ILC will vary based on the lens you use during that time. Here is the front view over all size comparison of the Efina and the A7R IV.

Considering size and weight, the portability rating of the Efina and A7R IV is 97 and 62 respectively.

In many cases, its hard to visualize the gap in sensor sizes simply by researching specs. The picture here might provide you a greater sense of the sensor sizes in the Efina and A7R IV.

All in all, both of these cameras enjoy different resolutions and different sensor sizes. The Efina having a smaller sensor is going to make getting shallow depth of field tougher and the Sony A7R IV will render extra detail because of its extra 47MP. Higher resolution will allow you to crop photographs far more aggressively. The more aged Efina will be disadvantaged with regard to sensor innovation.