Weight is not a factor to consider when choosing a camera for drone photography, as the drone will carry the camera.

Focal length is the most important factor to consider when choosing a lens for drone photography, as it determines the field of view and the ability to capture close-up or wide-angle shots.

50mm is not a common focal length for drone photography, as it is too long for most applications. Common focal lengths for drone photography include 16mm, 24mm, and 35mm.

A wide-angle lens allows you to capture more of the scene, which is useful for capturing landscapes or large groups of people.

A telephoto lens allows you to capture close-up shots of distant objects, which is useful for wildlife photography or capturing details of buildings or structures.

Aperture controls the amount of light that enters the lens, which affects the brightness of the image. Shutter speed controls the duration of time that the shutter is open, which affects the motion blur in the image.

A larger aperture (smaller f-number) results in a shallower depth of field, which means that only a small portion of the image will be in focus. A smaller aperture (larger f-number) results in a deeper depth of field, which means that more of the image will be in focus.

A faster shutter speed (shorter exposure time) results in less motion blur, as the camera is able to capture the image before the subject has a chance to move. A slower shutter speed (longer exposure time) results in more motion blur, as the camera is able to capture the movement of the subject.

All of the above methods can be used to avoid camera shake when shooting with a drone. Using a tripod or gimbal will help to stabilize the camera, increasing the shutter speed will help to reduce motion blur, and using a remote control or app to trigger the shutter will help to eliminate camera shake caused by pressing the shutter button.

All of the above methods can be used to learn more about camera and lens selection for drone photography. Reading articles and tutorials online, watching YouTube videos, taking a photography course, and experimenting with different cameras and lenses are all great ways to learn more about this topic.