Although Nikon lenses generally can’t be used on Canon camera bodies and vice versa, that doesn’t mean you’re stuck buying only Canon/Nikon lenses; there are quite a few third party lens manufacturers that create lenses of varying qualities. Sigma, Tamron, Tokina and Carl Zeiss all create lenses for a multitude of cameras. Third-party lenses aren’t necessarily ‘worse’ than lenses made by the manufacturer of your camera — a high-end Sigma zoom can often be better than a similarly priced Canon or Nikon equivalent. However, if you compare the best third-party lenses with the best ‘brand’ lenses, the big-brand lenses tend to come out a little bit better in test.
If you find yourself shooting outdoors frequently and want to get as much of the view in your frame as possible, the width of a kit lens’ focal range just won’t cut it. These lenses are great for landscape and architectural photography, and work especially well for taking large group portraits.
This lens is not expensive, but can be used most frequently. Although the 50mm lacks the ability to zoom in or out due to its fixed focal length, it allows for beautiful depth to achieve that blurry, dream-like background. The images you take will be sharper and crisper than those taken with your kit lens. This lens works surprisingly well in low light and the its compact size makes it easy to travel with. Especially good for portraits.