The most affordable camera option for achieving professional quality photos and videos is the Sony Alpha a6000. It is a great choice for beginners and offers amazing value for money. It has a fast autofocus system, a 24.3-megapixel APS-C sensor, and can shoot 11 frames per second. It also has a tilting touchscreen and can shoot full HD video. Another great option is the Olympus OMD EM10 Mark IV, which offers a cheap lens range and is a great economical digital camera. It has a 20.3-megapixel Micro Four Thirds sensor, 5-axis image stabilization, and can shoot 4K video. It is also lightweight and portable, making it a great option for travel photography.