If you have a number of images to work on and supply to a client from the same shoot, then batch processing can save you a heap of time.
If your pictures have revealed fine black blurry dots, then you could have a problem with dust on your camera sensor. Cleaning your camera sensor can seem quite daunting, after all it is the most expensive part of the camera and susceptible to damage
The sensor in your camera is the CCD or CMOS chip that captures the light to record the image. It’s the thing in your camera that replaced film! And just like film, they come in different sizes and formats