So many questions, do I need to buy lens from Canon, or third party lens? When you have plan to buy lens, first you need to know about them. The two main types of focal length are telephoto and wide-angle, and while telephoto lenses have a narrow field-of-view and are best suited for close-up shots and portraits, wide-angle lenses have a wider field-of-view which is perfect for indoor photography and landscapes.

Wide Angle Lens: Wide angle lenses are most commonly defined as lenses with focal lengths that are less than 50 mm. A wide angle lens is most commonly used for landscape photography.

Standard Telephoto Lens: This is the typical short range zoom lens that usually is sold included with new digital SLR cameras.

Medium Telephoto Lens: This is most commonly defined as a lens that has a midrange telephoto capability. This type of lens can be very powerful and very expensive. Photographers buy these lenses for many different reasons and they can get lens buy online or just find them on local store.

Tips before deciding to buy lens

Before decide to buy lens keep in mind that the performance of lenses can differ from camera to camera, with the magnification power behind a lens generally being greater on a digital camera than on a 35mm film-based camera. You can buy camera lens depend on your camera.

When you hear about fast and slow lenses, reference is being made to a lens’s maximum aperture, which is the maximum amount of light that a lens can let in. A simple rule of thumb is that a fast lens lets in a lot of light, while a slow lens lets in less light, which defines how your photos will look.

Maximum apertures are measured in f/stop numbers, which are actually a ratio of the size of the lens aperture and focal length. Unlike a fixed-focal-length lens, a zoom lens often gives you the diversity of a range of focal lengths all rolled into a single adjustable lens. If your lens utilizes aspheric lens elements, then you can rest happily with the knowledge that your lens will help produce sharper photographs and help keep lens weight to a minimum and I think buy macro lens is a good option.

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