There are many reasons why the digital cameras have become so popular despite an initial high price tag. They are fun to use, because they produce a finished image seconds after the shutter button is pressed. Digital cameras are also extremely convenient and inexpensive to use because you do not need to worry about wasting film or polluting the environment with chemicals.
Digital cameras gives you amazing control over your images. However their classifications are often confusing to a lot of new users, as they are distinguished by their resolution - how many pixels, or picture elements, the image sensor contains. And they are getting higher and higher in resolution. Digital cameras for amateurs are currently boasting of 10, 12, and even more mega-pixels of resolution.
Another advantage of the digital camera is that you can hook it up to your computer and manipulate your images in a multitude of ways. Never mind that you can save your favorite photos electronically
Digital cameras are constantly improving, and new models are being introduced at a rapid pace. Digital cameras are sorted by their resolution, how many pixels, or picture elements, the image sensor contains. The digital SLR (single lens reflex) camera is coming down in price and is slowly taking over the higher end digital camera market.
Digital cameras are becoming more and more sophisticated and are capable of excellent image quality. Their picture quality is quickly overtaking the old 35 mm film cameras.
The Film Photo labs are now offering digital photo printing and a growing variety of net-based services are expanding the range of ways in which digicam owners use their cameras. You can now order your prints over the Internet by emailing the file. A few days later you will receive your prints in the mail. Even an inexpensive digital camera is good enough to make great looking 8"X10" prints and at a very reasonable cost
There is a group of digital camera products being offered, which are classified as point & click. They are very easy to operate and have become very popular with users who are not usually early adapters of personal electronics.
The domestic shipments of digital cameras overtook those of film cameras a few years ago, it is estimated that the sale of digital cameras this year will be in the double digit millions.
A pinhole camera is the simplest medium in the art of photography. The pinhole camera is also very unique camera because it takes pictures without using any lens. Interesting, isn't it? You see, the small hole in the pinhole camera actually acts like an ordinary lens. A clear discussion of why this is so is found in this article. The simplicity of the how a pinhole camera works is amazing. One can't help but be blown away by it.
What Does a Pinhole Camera Look Like?
Before we discuss how a pinhole camera works, we need to know what a pinhole camera looks like. A pinhole camera is a box with a very small hole in the middle. Any box made of light material will do. The box should be light-proof. So that light can't enter except through the small hole, you can cover the box frame using black tape. But you need to put on the opposite of the hole inside the box first. After that, you can make a very small hole by using a pin going through a piece of aluminum foil and then taping it over the hole in the box. A small piece of cardboard taped on one side over the pinhole can be used as a shutter. When everything is ready, pick any object or scenery, put the pinhole camera in front of it, open the shutter, and briefly expose your film to take a picture.
How A Pinhole Camera Works - The Facts
The secret behind how a pinhole camera works lies in the small hole in the middle of the box because the smaller your pinhole is, the sharper your picture would look. According to Wikipedia.com, rays of light enter through the small pinhole and is projected to a certain area on the film. Furthermore, if the pinhole is very small, finer and thinner beams of light would be captured. However, thin streams of light tend to bend when they make contact with the film. Even if the lines of the image look sharp, the overall picture can be a little blurry.
So how does the pinhole camera actually work? Now, let's say that you want to use your pinhole camera to take a picture of a flower. The flower bounces off a certain amount of light so that it can be seen. The very small hole in your pinhole camera captures all the streams of light that the flower emits and projects it upside-down into the film.
You need to use mirrors to have the correct perspective. Howstuffworks.com states that the very small hole in your pinhole camera functions like an ordinary lens. In other words, it is not really accurate to say that a pinhole camera has no lens because the small pinhole actually works like a lens.
Now you know how a pinhole camera works - by simply capturing light and projecting it to specific areas on the film. This simple concept is also used in digital cameras which use high-powered lenses.
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