What is the difference between zoom and telephoto? Similarly, when you reduce the shutter speed more light enters the camera. When you increase the shutter speed the camera shutter opens and closes more quickly, reducing the amount of light that enters the camera. For example, if you are shooting with a 200mm lens, your shutter speed should be 1/200th of a second or faster to produce a sharp image. What shutter speed should I use?Īs a rule of thumb, your shutter speed should not exceed your lens’ focal length when you are shooting handheld. … An f/2.8 lens would usually be capable of giving a more shallow depth of field (and therefore a bigger background bokeh) than an f/4 lens.

in the maximum amount of light each lens allows to reach the sensor. What is better f/2.8 or f4? The most obvious difference between an f/2.8 and an f/4 lens is in their “brightness”, i.e. It’s an ideal lens for candids, travel and sports photography. With a 300mm maximum focal length (450mm equivalent on DX-format cameras) it brings even the most distant action closer. The AF Zoom-NIKKOR 70-300mm f/4-5.6G is a lightweight and versatile option for those seeking affordable telephoto zoom capability. Which lens is best for wildlife photography? Here is an example: For a 300mm lens, divide 300 by 50 to get 6x magnification. At the lowest focal length,it has a F4 aperture and the F number increases as you zoom in,giving you a minimum F number of 5.6 at the highest focal length.Īccordingly, How much zoom is a 300mm lens? Now coming to your question, F 4–5.6 on a lens means that the lens has a variable minimum aperture at different focal lengths.

Nikon zoom lens for 200 yards