The Physics of Photography
The general population has become so accustomed to their simple point and shoot cameras that they do not either notice the poor quality of images that they are producing or do not have the knowledge to produce better images. For those who desire to take better photographs, photography will be an exciting life long adventure. There are many aspects to consider when taking a photograph. A good photograph is well thought out before the photographer snaps the shutter. Whether taking one’s portrait or shooting a landscape in the back yard, things must be lined up just right to get the best possible image. Different techniques are used to produce the exact feeling the photographer wishes to portray in his/her image. Depth of field is one way in which one can manipulate a photograph to produce the exact image desired. Depth of field is how much of the image is in focus from the front of the photograph to the back of the photograph. Emphasis can be placed on a certain subject by obscuring the foreground or background. There are three main features that can affect depth of field. Lens aperture (f-stop), distance from the camera to the subject, and the focal length of the lens (Heart 100).
In order to understand depth of field one must first understand how light works. We can view objects because of light rays reflecting off their surfaces. These light rays are reflected in innumerable directions. In order to capture an image onto film one must be capable of controlling the light rays that enter the camera. This is done through the lens. The lens consists of a mixture of converging and diverging lenses that bend the light so it reaches the film as a real image. The light that passes through the upper po...
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...of the light from the scene behind the subject must bend more to reach the film, causing the background to be blurred. When the photographer is farther away from the subject, all the light reflecting from the scene travels a straight path into the lens, making the index of refraction less and creating a sharper image from front to back.
There is a wide variety of information to learn in photography and depth of field is just one aspect. Learning the different methods for controlling depth of field such as aperture, focal length, and subject distance will help in the journey of taking great photographs. Gone are the days of taking roll after roll of terrible photographs from a point and shoot camera. With just a little knowledge, taking sharp, well exposed photographs is more that just something the professionals do but rather something one can accomplish oneself.
Prior to the invention of the daguerreotype, the Camera Obscura was the main optical instrument that was used to project images onto paper. The Camera Obscura was a device in the shape of a box that allowed light, which was being reflected from the images that the user was intending to capture, to enter through an opening at one end of the box to form an image on a surface and an artist would then trace the image to form the most accurate impression of an image at that peri...
Photography is defined at the art or practice of taking and processing photographs. To understand photography is having insight or good judgment to know how to take the picture, but also edit it if need be. Does photography limit our understanding of the world? What some people haven’t realized is that photography is all around us, whether it is in the person’s mind to see it or not. While we see photography throughout our daily routine, people dismiss the small types of photography and focus on the bigger sceneries like other countries beautiful cities and landscapes. It’s true that in this day and age, most photographs we see have been altered in some way. When photographers use Photoshop to edit our photos, we use many different ways to make that image appealing to the eye. Although, photographers unless told to do so will not change an image into something totally absurd that takes away from being astatically pleasing. Images are a gateway to the insight of the rest of the world’s cultures landscapes, and architecture, and photography is the key aspect to it. Photography is a one way to see the world, but it is better if you go and travel around the world to see it. In order to see if photography actually limits our understanding, we have to first look at the positive side of photography.
Darcy and Mr. Bingley’s sisters soon follow him back to London. Caroline continues to plot in hopes of splitting up Jane and Mr. Bingley. She writes a letter stating that her brother will not be returning and that he may be marrying Darcy’s younger sister. Jane was very upset and though that Darcy and Mr. Bingley sisters are plotting against her and her sister. Jane agrees to take a trip with her aunt and uncle. Mr. and Mrs. Gardiner take Jane to London with them. They hope Jane will see Bingley while she is there but they also warned Elizabeth not to marry Wickham because of his financial troubles. Wickham continues to try to get one of the Bennet sisters or any one that has come into wealth. Austen was so back and forward with the men and women in this story. Jane is thinking the Bingley no longer wants her since he hasn’t visited or called her while she is in London. Jane had no clue as to what was in store for her
Autofocus: This is a focus system that will focus on an object in the frame of your lens automatically before you snap a picture. This allows you to focus on other facets of taking a
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The theory of photography originated from the discovery of the camera obscura phenomenon – light that enters a darkened chamber through a small hole is projects an identical inverted image on the interior wall of the outside scene. The first recordings of scientists recognizing this concept was in the writings of Greek philosopher, Aristotle (384 – 322 BC).
There is so much to be discovered in our vast world of technology. Scientists and researchers work hard everyday to educate themselves and others on the advances capable of being achieved. There are people learning about new technology, different scientific and medical methods, and most of all medicine everyday. However, there is always a price to pay with hypotheses running their course through experiments, and that is the testing subject. Scientists feel the best choice for such research is to use animals to be tested, and that great achievements in the science world are worth it. Just as these scientists are, testing on innocent animals is completely wrong. Just because they are available for testing, and don’t have any ability to opt out in these experiments, does not mean they are right for the job.
Each of Jane Austen’s characters in her novel, Pride and Prejudice, experiences a significant character development. Whether the change occurs by self-realization or through the assistance of another character varies from each individual character. For Austen’s leading man, Mr. Darcy, his character improvement is documented through his two marriage proposals to Elizabeth Bennet and her subsequent first rejection of his proposal. His first proposal demonstrates his extreme arrogance, elitism, and blindness to his many flaws. While his latter proposal shows not only the recognition of his deficiencies, but the overall improvement in his mentality. Mr. Darcy’s two proposals, though having the same intended end result, are completely different
Gay Marriage has been debated in many countries for a long time. It interferes with citizens civil rights so is therefore a major issue. Many gay couples today have come out and expressed their sexuality. Although many people are against legalization of gay marriage, I believe it should be legalized for the reason that it encourages strong family values, leads to the increasing number of child adoption, and is a citizen civil rights.
As you can see, there is a big world waiting for you to capture and mold its image. Whether you just want to remember that sunset on your honeymoon, your little one’s first steps or even if you click your shutter at everything you pass… the right equipment certainly helps. Whatever equipment you use, with good lighting and attention to such details as film type and speed, distance from subject, rule of thirds, and an eye for what you want, you can make beautiful photos that you and yours will cherish for generations to come.
Experimentation has been performed on animals such as rats, mice, and primates in testing various products from cosmetics to drugs. The experimentation of animals usually involves pumping a substance into the animal’s stomach or applying it to the skin and eyes; they are confined to cages and not allowed the freedom of their natural way of life. According to a report by PETA (People for Ethical Treatment of Animals),” this causes great stress and discomfort to the animals (2011).” The animals may not die, but they are scared and maimed for the rest of their lives. Practices such as this are still used today even though there are cheaper and more conclusive ways of conducting this testing; in vitro (test tube), genomic, computer modeling technique, and human volunteering. These research methods are more humane, cost effective alternatives to animal testing. “The harms to the animal conflict with perceived societal benefits that will result if ...
Marriage is the most powerful way for couples to show their love. However, it will be unfair for someone to try and negate the rights of married couples. Therefore, all types of marriages including gay marriages should be legalized since couples deserve equal rights and freedom. Opponents of gay marriage point out that it is against God’s laws, but they forget that the same Bible also promotes equality regardless of gender, race and religion. Moreover, if marriage is all about love, then those in love and committed to one another should be allowed to the freedom to marry regardless of their gender and age. Studies have revealed that heterosexual marriages are failing at a very at the very alarming rate. Based on this knowledge, gay marriages must, therefore, be legalized.