The f/stop does more than allow the amount of light into the camera. It also has some very powerful functions that effect depth of field and optimal aperture control. Continue reading Fun With f/stops– The Secret Of f/2.8
To give a mental image, imagine that you have to fill a cup of water. There are two ways in which you can fill it at the sink: 1) open up the faucet so that a lot of water fills it up quickly or 2) let the water drip for a long time and fill up the glass that way. A camera works in a very similar way: that camera either lets in a lot of light or adjusts the time light is allowed to hit the film plane.
How the camera measures the time of an exposure is easy. A shutter opens up for a moment and closes. This is called shutter speed. Shutter speeds can vary from the very fast (e.g. 1/8000 second) to very long (e.g. 1 minute).
What is more difficult to understand is how the camera determines the amount of light into the camera. This is determined by f/stop.
In a lens there is a device called a diaphragm (normally a series of adjustable leafs that make a smaller or larger opening in the lens). When more light is needed, the diaphragm is opened. When less light is needed the diaphragm is closed. f/stops measure the size of the opening, which photographers call the aperture.
So why are they called f/stops and how do they work?
The first step in changing mindsets in sales is to first become a strategic thinker. What I mean by “strategic” is that you should be thinking about the long-term effects of your plans. It is much easier to get to someplace on a map if you know where it is on the map you want to be. Many photographers believe that success is measured only by income; however, income is the result of success, not the final destination. Continue reading How To Approach Sales As A Photographer
There are several factors that must be included when you are considering the characteristics of lenses. To perform well as a photographer, you must recognize the effect of these lens characteristics. Realize also that it is the recognition and use of these various lens features and/or qualities that can make the difference between a good and a poor photograph. By understanding the advantages and disadvantages beyond just the field of view of a lens opens an entirely new level of photography that is an essential, but often overlooked. Continue reading The Character of a Lens
Understanding photography requires an understanding of art and science. The word photography comes from the Greek “to paint with light.” So in order to create art with photography means you have to understand how light works. Continue reading Character of Light