Tag Archives: Camera Lens

Digital SLR Camera – Three Features You Must Know

Should you have just got your very first Digital slr camera for Xmas or upgraded from a point and shoot camera it is likely you would like to know ways to get the most from this style of camera.

In order to capture the best photos you should learn how ISO, aperture and the speed of the shutter depend on one another to achieve the right exposure for the photograph you want to capture.

These three functions regulate the exposure setting of the subject you intend to photograph. The buttons and knobs you press and rotate will vary dependent upon the particular dslr camera you’ve got, but the factors behind the configurations will be the same no matter what dslr camera you are employing.

A dslr camera essentially works by subjecting the digital sensing unit, a light sensitive medium to record the photo. The shutter speed, aperture and ISO all play a part on the way this light shows up on the medium and the shot is captured.

Speed Of The Shutter

Within the camera is a device known as the shutter that is closed till you push the switch to shoot the photograph. The shutter speed describes just how long the shutter is open to let in the light. It is recorded in parts of a second. The longer the shutter speed the more amount of light the digital sensing unit is subjected to. Moving objects are going to be blurry with a lengthier shutter speed.


The aperture describes how big the hole is within the camera lens that the light arrives through. The bigger the opening the greater light which is let in. The thickness of the aperture is assessed in f-stops. Perhaps surprisingly the smaller this value is, the bigger the aperture and for that reason more light is let in. The aperture setting furthermore impacts the focus of the photograph. The larger the aperture the lesser quantity of the image is going to be in focus. The smaller the aperture the more of the shot is going to be in focus.


ISO describes how sensitive the digital sensing unit is to being exposed to light.. The more sensitive the ISO setting (a higher number) the more light it can capture. The larger the ISO the grainier the image will appear. But it does ensure you get a picture in inadequate lighting or get photographs using a much faster shutter speed.

With a Digital slr you can manually regulate the numbers to get the best degree of light to achieve the correct exposure or you can set the digital slr camera to do it on your behalf. If you have chosen the shutter priority setting, the shutter speed is chosen and the suitable aperture is determined by way of the camera. Inside the aperture priority setting the aperture setting is picked by you and camera works out the proper shutter speed for the necessary exposure. Whenever you choose the manual mode you choose each of the aperture and shutter speed offering you additional control over the appearance of image.

If you want to find out more concerning the Pentax K7 dslr as well as other digital SLR cameras, make sure you visit us at http://digitalslrreviewer.com/ for indepth Pentax K7 review and reviews of additional cameras