What does megapixel work & What is zoom actually

What does megapixel work

The meaning of mega words surely will be known. 1 thousand to 1 kilo, 1 kilo in 1 mega. That means 1 megapixel meaning 100 million pixels. When the camera is mentioned in the 5 megapixel it means that the camera will have 5 million pixels in the film.
Compare pixels to the given dot as well. The more data you need, the more space will be needed. So, the larger the size of megapixels the larger the size of the image.
The most common misconception about megapixel, the quality of the picture is better if it increases. Actually there is no relation between megapixels with image quality. Normally 6 megapixel sensors are enough for 8-10 inches print. Those who make pictures for making large size billboards are different.

What is zoom actually

Zoom importantly with a camera lens. It is known that you can take pictures of the distance. The accounts are published in millimeters. It has two values, the nearest size is wide, the telescopes are called the telescopes. Wide angle has more parts of the front footage, it becomes smaller in the telephoto, as a small part can be seen. For example 25-250mm, this means 25 mm in Wide Angle, 250 meters in telephoto. It can be written as 10x X means Wide Angle quality quality. Currently there is a point and shot camera up to 35 x (840 mm) (Canon SX30 IS).
So much so that the zoom is said to be working by the lens. There is also another topic called Digital Zoom. Software does this work. If you want to get good quality pictures then it is better to keep it out of reckoning.
The amount of zoom camera used depends on the type of image. If you have a hobby to take pictures of birds, then the better you are, the better. If it is necessary to remove images of family, nature, then zoom is not needed. As far as the picture of the flowering gardens is concerned, the better picture can not be found using telephoto.
Another lens can be opened by opening a lens in SLR cameras. Because of this, users use different types of lenses from Wide to Super Telephoto. The zoom required (300 mm +) to extract as many pictures as possible. 18-55mm lenses are available in costly SLR cameras for general work as ketlains. Experts say good portraits require 85 mm. That's why 85mm Prime lenses are available. Someone uses 135 mm or 200 mm lens to increase.