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Same silicon CMOS sensors are used up to this day in most photo cameras, an exception is Sigma’s Foveon design. Traditional silicon CMOS sensors are inefficient at light gathering, low light sensitivity is lacking, there is a need to rely on big sensors such as full frame to get good image quality which in turn leads reliance to bulky, heavy, limited zoom and expensive lens. Many years ago news appeared about wonder material – graphene. It‘s made up just of carbon but has remarkable properties such as highest strength to weight ratio material (just adding little bit of it to concrete, plastics, rubber or carbon fiber can significantly increase their strength), highest thermal and electrical superconductivity at room temperature, they can generate light by vibrating, it can be used as filter to produce clean water and has various applications in electronics, so no wonder it‘s touted as material of the future. Biggest problem is that it‘s hard to make graphene without defects but scientists are making progress on ways to cheaply mass produce it. One of the more interesting graphene applications is in the camera sensors. It‘s said that graphene enhanced sensor could be up to x1000 more sensitive than traditional CMOS sensors and furthermore they also are sensitive to deep infrared spectrum up to SWIR, MWIR and maybe even deeper, thermal camera‘s using such spectrum are used only by the military and labs due to enormous cost and still have limited resolution. Hyperspectral cameras are mostly used by scientists, military and industries but infrared photography made with full spectrum modified camera is also gaining interest among artists too due to the unique look of indivisible and less explored spectrum. So now just imagine possibilities graphene CMOS sensors could open up along with new unconventional invention - paper thin metalens which deserve separate topic. Professional high image/video quality mirrorless camera sensors and pixels could be shrinked, resolution and shutter speed increased without sacrificing needed low light performance. They could use more compact, light, super telephoto lenses that would be also more affordable. https://www.slrlounge.com/new-graphene-based-image-sensor-the-future-to-low-light-photography/I read many years ago about development of new type camera sensor such as us Quantum dots sensors are also in development, one design uses three-layer sensor and QD can be also used in conjunction with graphene sensors. They can replace Bayer color filter mosaic since each QD is sensitive only to specific wavelength or in other words color. Up to now quantum dots were used to make less known QLED displays such as those made by Samsung which by the way I love a lot and are better than OLED/IPS. I‘d love to see QLED displays in camera‘s too because they are the brightest and colors are vibrant. QD sensors are already used in SWIR cameras. https://www.cined.com/a-research-study-is-using-quantum-dots-to-develop-a-new-three-layer-sensor-design/ Canon also released a SPAD sensor camera that uses electron avalanche to amplify even faint signals from low light sort of like analog night vision image intensifier tubes. These technologies are amazing but they must be mass produced to bring down cost for affordability to regular folks. So I’m waiting for a mirrorless camera company that will have enough courage and respect for users to release a mirrorless camera using the latest available technology to make a big leap forward. Then companies could just charge more instead of peddling little changing semi outdated trash that has questionable application range and is just contributing to polluting the planet.