= 12. Semi-Interquartile Range. The semi-interquartile range of a distribution is half the difference between the upper and lower quartiles, or half the interquartile range. Therefore, from the example above, it was determined that the interquartile range = 12.
Electronic Viewfinders (EVFs) An EVF is basically a very small screen inside a viewfinder, so you can put your eye up to the viewfinder and use it like a traditional camera. On most cameras with EVFs you can switch the view between the viewfinder and the rear LCD screen interchangeably.
There are pros and cons to optical vs electronic viewfinders, so whatâs best for you will depend on the situations youâre most likely to shoot in, and your preferred camera type. In this post, we take a look at the key differences, advantages and disadvantages of each.