Articles

What mm lens is best?

What mm lens is best?

How to choose the right camera lens?

Photography Type Best Lens Type to Use Lens Recommendation
Landscape Wide-angle lens Canon EF-S 10mm-22mm f/3.5-4.5 USM
Wedding Prime lens Sigma 50mm f/1.4 DG HSM ART
Sports Prime lens Canon EF 400mm f/2.8L IS II USM
Wildlife Super telephoto or telephoto lens Nikon 70-300mm f/4.5-5.6G VR

Which is better 2.8 mm or 4mm?

Although it has more clarity at a further distance, the 4mm lens shows a similar scene to the 2.8mm. The main difference is the reduced angle of view which gives the illusion that objects are closer to the camera. A 4mm lens is useful for detection & identification.

What are the differences between camera lenses?

There are two basic categories of camera lenses:

  • Prime lenses. Primes have a fixed lens focal length, making them faster and sharper.
  • Zoom lenses. Zooms use a series of lenses to allow different focal lengths from a single lens, making them more flexible but not as fast.

What does 500 mm lens mean?

The EF 500mm lenses are a group of super-telephoto prime lenses made by Canon that share the same focal length. When used on a camera with a field of view compensation factor of 1.6x, such as the Canon EOS 400D, they provide a narrower field of view, equivalent to an 800 mm lens mounted on a 35mm frame body.

What is the focal length of a camera?

Strictly, the normal focal length is around 50mm on a full frame camera or 35mm on a crop sensor camera. In general, the normal range is considered to be about 40mm to 65mm on a full frame camera and 28mm to 45mm on a crop sensor camera.

What is focal length in telescopes?

A: The focal length of a telescope is the distance (usually expressed in millimeters, or mm) from the telescope’s main optical element (main lens or primary mirror) to the point where light rays are brought to a focus.

What is focal length in photography?

In photography, we use focal length as a primary descriptor of lenses. It’s the measure (in millimeters) of the distance between the rear nodal point and the focal point of the lens, while the lens is focused to infinity.

What does focal length do?

In general, the focal length or EFL is the value that describes the ability of the optical system to focus light, and is the value used to calculate the magnification of the system.