On a Nikon DSLR, the lens aperture is always set via the aperture dial on the camera body.
The Nikon 70-300, officially known as AF Nikkor 70-300mm f/4-5.6G, is a digital Nikkor lens created by Nikon in 2006. The lens has a focal length of 70 to 300 mm and maximum aperture settings of 4 (for 70mm) and 5.6 (for full zoom at 300mm). In all cameras, whether film SLR (single-lens reflex) cameras or DSLR (digital), the aperture is set by adjusting a gear on the camera body itself, and not the lens. So setting the aperture when using a Nikkor 70-300mm is the same as setting the aperture when using any other type of lens on your camera.
Instructions
1. Attach the lens. To attach the lens properly so that it engages with the camera body, line up the white dots (one dot on the camera body lens mount and the other on the side of the lens) and then turn right until you hear a click.
2. Set the aperture. The aperture dial on all Nikon camera bodies is on the front upper-right hand side. It is the only dial that is located on the front. When holding the camera, your right index finger should rest on top of it. The largest aperture possible at the minimum zoom (70mm) is f/4. The largest aperture at the maximum zoom (300mm) is f/5.6. When setting the aperture, remember that the size of the aperture is responsible for how much light is let into the camera; the larger the aperture (smaller number) the more light let in. With large apertures, the depth of field (plane of focus) is shortened, while with a small aperture (larger number) the distance of focus is greater.
3. Adjust the shutter speed according to your aperture setting. After you set the aperture (or vice versa), set the shutter speed. Both aperture and shutter speed have to be set every single time you take a photo to ensure that the correct expose is made. Depending on your light situation, the shutter speed will balance out the setting of your aperture. In ideal lighting, if you have a large aperture you will need a fast shutter speed. If you have a small aperture, you will need a slow shutter speed. If you are in a low light setting, the aperture should be large and the shutter speed slow.
Tags: shutter speed, camera body, setting aperture, aperture dial, aperture when
