Panasonic G9 sensor tested: Is Panasonic’s best sensor yet! July 15, 2018 reviews 0 Comments PhotonsToPhotos tested the G9 sensor performance. And it shows the best Panasonic performance yet. It only gets slightly beaten by the Olympus E-M1II. Panasonic G9 at BHphoto. Amazon. Adorama. FocusCamera. AmazonDE. Wex UK.