Canon is expected to formally reveal the full-frame Canon EOS R5 this Thursday, along with a previously announced lens (RF 100-500mm F4.5-7.1 L IS USM) and two teleconverters (RF 1.4x, RF 2x) during a live-streamed event, starting at 2pm CEST. According to Canon Japan, there are a further six RF lenses that are expected to be announced ‘under-development’, with the aim of having them introduced by the year-end. Some of the camera’s specifications have been revealed already, including full sensor-width 8K RAW at 29.97 fps and 4K up to 119.88 fps in either 4:2:2 10-bit Canon log or 4:2:2 in 10-bit HDR PQ. Despite announcing some of the video features,…