Final answer:
Back illuminated CMOS cameras, low noise cameras, and high sensitivity cameras for microscopes have real-world applications and benefits.
Step-by-step explanation:
Back illuminated CMOS cameras, low noise cameras, and high sensitivity cameras for microscopes are not purely marketing gimmicks. These features have real-world applications and benefits. Back illuminated CMOS cameras, for example, have the sensor flipped so that the light can directly hit the photodiodes, resulting in improved sensitivity and lower noise. This makes them ideal for low-light conditions or situations where high pixel count is required without sacrificing image quality.