KnowKnowledge

  Photographers typically spend a lot of time thinking about color, everything from editing in Photoshop, calibrating a screen, or lighting with gels and filters, to deciding on wardrobe, set design, and locations. There is no escaping the importance of color in this profession, and yet the way we see and describe color is not so simple. Color vision games can be a great way to test your perception of the world around you and compare that to fellow photographers. How we see color gets complicated fast because it's determined by physics, biology, and culture. Differences in any one drastically changes your perception, giving you a different experience than someone else. On top of that, the brain can be tricked into convincing you that you are seeing one color when you are actually seeing another. There are so many variables to how any given viewer is seeing color, it makes you second guess all that time spent agonizing in Photoshop. I have always been obsessed with the concept of co

  One in twelve men suffer from color vision deficiency (CVD). It’s a guarantee that many of the people reading this suffer from it as well. There is now a company that offers a solution to color blindness. Being a color blind photographer obviously poses some major issues. Having CVD myself, I’ve spent a lot of time researching what it means in order to combat this deficiency and know how it’s affecting my work. Since this condition is fairly common in men, there are some well-known photographers that suffer from it as well, Joel Grimes being the best example. Like most, I was diagnosed when I was a child. My parents noticed that the names I assigned certain colors were not in fact those colors. Dark and very light colors seem give me the most trouble. Dark red and green often look the same to me. Most of the time, I don't see pink at all; to me, it's light gray. Fortunately, bright and primary colors don't give me any trouble.  Luckily for me, my color blindness is fairly

  “All great events hang by a hair.” —Napoleon in a letter to the Minister of Foreign Affairs. In A Nutshell The death of Napoleon Bonaparte has long been a point of contention. Some say he was killed by a stomach ulcer and others say it was murder, but a new discovery points to the fact that the real culprit may have been a particular shade of green.  This green, called Scheele’s green, was the invention of a Swedish chemist and was used in the wallpaper that covered many rooms of Napoleon’s exile home. Unfortunately, when the dye gets damp it also gets moldy and releases arsenic into the air. The Whole Bushel After being handed his final defeat by the Duke of Wellington, Napoleon Bonaparte was sent to exile on the tiny, South Atlantic island of St. Helena. When he died, the cause wasn’t certain.  There were a number of people on the island with him who had reason to want him dead (not least of all the head of his household, whose wife reportedly became Napoleon’s mistress and bore hi

 What Is Color Blindness? Color blindness is a common condition in which you have difficulty distinguishing between certain colors. A more precise term for color blindness is color vision deficiency .  Color blindness can be inherited or acquired. Inherited means the condition is passed on through genes and present at birth. Acquired means the color blindness occurs later on in life and results from age, eye disease, eye injury, certain medications, or chemical toxicity. The most common cause of color blindness is an inherited problem in the development of one or more of the three sets of the eyes' cone cells, which sense color. Among humans, males are more likely to be color blind than females, because the genes responsible for the most common forms of color blindness are on the X chromosome. Females have two X chromosomes, so a defect in one is typically compensated for by the other. Non-color-blind females can carry genes for color blindness and pass them on to their children.