Each has its own method of manufacturing. There are various types of lens manufacturers and lens types. At 200 mm you should be able to achieve a focus of 2.5X. So, Nikkor 55-200mm f/4-5.6G says that this particular lens has focal length that can be adjusted between 55mm and 200 mm. The more the distance, the more the extent to which the lens will be able to zoom. Focal lengthįocal length is the distance between the lens and the image sensor. So, f4-5.6G indicates the lens can maintain a maximum aperture size of f/4 at 55mm and f/5.6 at 200mm. So, let’s say a lens reads Nikkor 55-200mm f/4-5.6G. The smaller the aperture the larger the f number or f stop. The larger the aperture, the smaller the f number or f stop. This is what you need to remember while measuring aperture sizes. However, the f numbers that measure the opening of the aperture are increasing at the same time. You can see that the aperture sizes shown in the above image are reducing as you move from left to right. It is either represented as fstop or f/stop. However, the more you keep shooting, the sooner you should get a hang of it.Īperture size is measured in f-numbers or f-stops. The scale of measuring aperture is a little tricky. The lesser a lens opens its aperture, the lesser the light the camera will capture however, this will give you more depth of field (the subject, the background and foreground are all in focus).The more a lens is able to open its aperture, the more light the camera will be able to capture and the lesser depth of field (only the subject is in focus, everything else appears blur or shallow).The aperture of a camera is responsible for two things in the resultant image, the amount of light and the amount of depth of field. Suggestive Reading: 10 Mistakes New Photographers Make And How To Avoid Them ApertureĪperture is the opening in the lens through which the light enters the camera (technically it’s the size of the lens diaphragm, but let’s not complicate too much). So let’s take a short lesson about camera lenses and understand the technicalities behind it. Unless you fully understand how a lens functions and what is its role in capturing an image, you will most probably end up buying a lens that doesn’t fit your needs and ultimately, feel bad about your investment. Ask yourself, what kind of photography would you like to use the lens for. ![]() Learn about the lens mount type of your camera. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |