PMR writes:
Much of sports, action, and performance photography happens under less than ideal lighting and so f/2.8 lenses are still needed to capture quality images in these situations. As it stands now, there are only two lenses that are f/2.8 for this purpose, the FE70-200mm f/2.8 GM and the FE400mm f/2.8GM lenses. This video is a formal request asking Sony to produce a 300mm f/2.8 prime lens ASAP.