Basically, so they can gather more light for when you are photographing something at a great distance. Otherwise "telephoto" (long distance) shots would look "dark".
"mm" on a camera lens refers to the focal length of the lens, measured in millimeters. It indicates how much the lens can zoom in or out, with larger numbers representing a longer zoom or telephoto lens, and smaller numbers indicating a wider angle or wide-angle lens.
The focal length of a camera lens determines its zoom capabilities. A longer focal length provides greater zoom, allowing you to magnify distant objects. Shorter focal lengths offer wider angles of view but less zoom.
The camera lens length plays a significant role in determining the quality of photographs. A longer lens length can provide more magnification and detail, while a shorter lens length can capture a wider field of view. The choice of lens length can affect factors such as depth of field, perspective, and image distortion, ultimately impacting the overall composition and clarity of the photograph.
A 28mm wide angle lens is basically a wide angle lens for a 28mm camera. The book definition for wide angle lens it... "a camera lens having a wider than normal angle of view (and usually a short focal length); produces an image that is foreshortened in the centre". In may words, "A lens that you put on your camera that makes the frame (frame- what you see) wider. Ex. If your zoomed out all the way and your pointing your 28mm camera at a chair. You can see the whole chair and just the chair. If you put on your wide angle lens, you can see more. You could fit two of those chairs in your frame now. Basically, it makes your frame wider.
The 28mm will have a wider view. So you can get more in the photo without taking a step back.
Canon SD800 camera is a Digital pocket camera that helps you get slightly wider angles in images. It is a PowerShot camera with 3.8x optical zoom lens covers.
Some of the best camera lens options for the Galaxy S7 include the Samsung Gear 360, Moment Wide Lens, and Olloclip 4-in-1 Lens. These lenses can enhance the phone's photography capabilities and provide a wider range of shooting options.
A higher mm lens in camera photography means that the lens has a longer focal length, which allows you to zoom in closer to distant subjects and capture more detail.
Some of the best camera lens options for the Samsung Galaxy S7 include the Moment Wide Lens, the Olloclip 4-in-1 Lens, and the Aukey Ora Lens. These lenses can enhance the phone's photography capabilities by providing wider angles, macro shots, and better overall image quality.
The best camera lenses for iPhone 6 are the Moment Wide Lens, Olloclip 4-in-1 Lens, and the Aukey Ora Lens. These lenses can enhance the quality of your photos by providing wider angles, macro capabilities, and better overall image clarity.
A digital slr or digital single lens reflex is a camera tht uses a mirror behind the lens to get light to the viewfinder. This allows you to have a wider range of focal lengths without having to change the lens.
A zoom lens is a lens of a camera which contains a mechanical assembly of inner lenses, which allow the focal length of the camera to be rapidly altered.