What Does Mm Mean In Camera Lenses
Getting to know your camera can exist a niggling daunting. Yous will be confronted with a whole new host of technical terms and abbreviations, and tin at times feel a trivial lost.
Even so, a basic agreement of a few of the more than common ones will not simply help you make a decision when buying a lens, but will also get a long way towards helping you lot capture great wild animals shots.
So, whatt does "MM" actually mean?
'MM' is the focal length of the lens. All lenses have a "mm" number printed on them; some accept a range of focal lengths. These numbers can vary hugely, from 8mm (a fisheye lens), all the way up to 1000mm and even across.
It is often incorrectly assumed that the focal length is measured from the forepart to the rear of the lens when, in reality, it's the altitude between the point of convergence in your lens to the sensor or movie in your camera.
Dissimilar focal lengths and what they are used for.
Wide angle lenses have smaller focal lengths than telephoto lenses. The majority of wide bending lenses are 35mm or smaller whilst telephoto lenses get-go at 70mm and go upwardly from there. Wide angle lenses include more of a scene, while telephoto lenses mostly include only a small part of a scene.
There are different purposes for dissimilar focal lengths. If you are shooting a group of people having some sundowners side by side to the game viewer, you would want to use a wide angle lens. Yous would then be able to include all of your field of study in a single shot and not need to move further away. If yous are shooting wildlife nevertheless, you would need a longer focal length lens, because there is ofttimes a limit to how physically close you tin get to the animate being.
How does the focal length affect the perspective of the photograph?
In lodge to illustrate this, I have taken different photographs of the same discipline thing at different focal lengths. Accept a look at the shots beneath with their accompanying mm values. Note that I was using a Canon 7D mkii, which has a crop sensor, which I will explicate farther in another web log post.
All photos were taken from a fixed indicate, roughly 20m from the State Rover.
20mm
50mm
100mm
200mm
400mm
600mm
As you can see, varying focal lengths have a huge affect on the type of photo that you are going to capture. Based on what your subject is and your distance from it, it is up to you lot to decide what photograph you lot want and make a decision as to what lens you lot volition need appropriately.
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Source: https://blog.londolozi.com/2017/12/18/what-does-the-mm-on-your-lens-mean/
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