Aperture is the lens diaphragm which opens inside of a photogenic lens and the size of the diaphragm opening in a camera lens regulates amount of light passes through onto the film inside the camera the moment when the shutter curtain in the camera opens during the exposure process. F stop is the aperture opening of a camera lens and this allows light to come in.
Pull focus techniques the focus pull (AKA rack focus) is a creative camera technique in which you change focus during a shot. Usually this means adjusting the focus from one subject to another.
Depth of field in cinematography is the distance between the nearest and furthest objects giving a focused image.
For the types of camera lens there is a standard lens which has a focus length of 42mm. This is used to capture regular pictures and videos.
We then move on to a wide angle lens and the wide angle lens has a focus length which is substantially smaller then the focus length on a normal lens. These are mainly used to capture landscapes and architecture because it enables users to capture alot in one shot. It would be used in a film if they are trying to show a building which the actor may be in.
Telephoto is a type of long focus lens where the physical length of the lens itself is shorter then the focus length. In terms of film you would use a telephoto lens for capturing animals, wildlife and even sporting events. The effect is to successfully take photos at moderate to far distances.
Macro is a type of lens used to photograph and capture small items and object at very close distances. This is because they focus better then normal lenses. It would be used to capture small insects on leafs and to capture small living organisms. The effect is to enhance the vision of a capture image which enables users to gain a greater depth of detail. Here are some images using a macro lens.
fish eye lense is a wide angle lens which is primarily used to capture a strong visual distortion which gives a panoramic view. In film it would be used to capture scenes in 180 degrees and is often used in retro skateboarding clips. The effect is to make scenes feel gritty and distorted.
use of exposure:
Shutter speed is the length of time where the film/ sensor inside of the camera is exposed to any form of light whether your filming outside in natural lighting or even inside in artificial lighting. This would often be used to blur a moving image for effect.
Iso is used to measure the sensitivity of the image sensor. By choosing a high iso you would have a faster shutter speed and choosing a low iso means you would have a slightly slower shutter speed. This would often be used to capture any image in various details.\
creating light trails is using a effect which essentially creates colourful images which creates long exposure on the camera. it would be used to capture anything which has alot of colour thats its effect.
frame rates for different effect
25 fps is a frame rate and this is the number of individual frames or images that are displayed per second. Fps is usually at its best when playing video games because thats when the frame rate needs to be accurate in order for users to have the best gaming experience.
Higher fps again would mainly be used in video games such as open world , tactical shooters and battle royales because this is when users need to be able to identify enemies or just be able to see clearly so the higher the frame rate the more crips the video is.
Lower fps would be used for television or movie streaming because even though users need high definition to watch their favourite shows. They are not co operating with any programmes as you would be with video games they are just watching them to frame rates would be considerably lower.
