Table of Contents
What does C stand for in lenses?
C (Contemporary) – this product line consists mainly of variable aperture zoom lenses for general use, such as standard and telephoto zoom lenses for APS-C cameras (the Sigma 18-200mm f/3.5-6.3 OS HSM Macro C, for example).
What do the letters mean on a camera?
Sample Camera Displays Represented by the letters “P” (programmed auto), “S” (shutter-priority auto), “A” (aperture-priority auto), or “M” (manual).
What does 15 55mm lens mean?
As you can tell by the name, the 18-55mm lens has a focal length of between 18mm and 55mm. Different manufacturers have different specs, but the usual aperture range on a 15-55mm lens is around f/3.5-5.6. At 18mm, the lens is capable of a wider aperture, so at 55mm, your maximum aperture would be f/5.6.
What does 1/4 mean on a lens?
It means that the ratio of the focal-length to aperture is f/4 at the wide end of the zoom and f/5.6 at the telephoto end. This is commonly done to saved weight and costs compared to a constant aperture zoom lens which simply has one ratio, say 1:4.
What do aperture numbers mean?
Aperture controls the brightness of the image that passes through the lens and falls on the image sensor. The higher the f-number, the smaller the aperture and the less light that passes through the lens; the lower the f-number, the larger the aperture and the more light that passes through the lens.
What is the meaning of 70 300mm lens?
The 70-300mm lens is a telephoto zoom lens made by Nikon. The lens has an F-mount to work with all the SLRs line of cameras (except the early 70-300G with the D40), although the more recent AF-P lenses will not focus on film SLRs or older DSLRs (roughly before 2013).
What does the f1 8 mean on a lens?
Aperture sizes are measured by f-stops. A high f-stop like f/22 means that the aperture hole is very small, and a low f-stop like f/1.8 means that the aperture is wide open.
What are the types of camera lenses?
Camera lens focal lengths from around 50mm to 85mm are mid range lenses, and lenses above 85mm are called telephoto lenses. Types of Camera Lenses: The main types of camera lenses are zoom lenses and prime lenses.
What is a good focal length for a camera?
For a standard full-frame 35mm camera this gives a focal length of around 43mm. In reality, the actual focal lengths chosen by manufacturers tend to be slightly longer than this. For a 35mm sensor, 50mm is the most common standard lens, although some companies do sell lenses which are closer to 43mm focal length.
What does camera lens mean?
A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically.
What do the numbers and Letters on lenses mean?
AF: This abbreviation means Auto Focus,the lens has the ability to focus electronically.