A question I am starting to get more and more on a daily basis is, "What is the first lens I should buy for my camera?" Which is going to depend on what type of videography or photography you will be doing. Now, to understand lenses you will need to have a general understanding of APERTURE.
An APERTURE is a hole or an opening through which light travels. That being said, the lower the aperture, the better the lens will perform in low light since it will let in more light. For example, a f/4 - 5.6 lens would not perform as well as a f/1.8 lens. Another advantage of a wider aperture is BOKEH, which is the blur and separation the lens gives you between your focus point or subject and your background.
No matter what type of photography you will be doing the first lens you need to buy is a Canon 50mm f/1.8. This is the cheapest ($125.00), best performing low light lens on the market. The popular focal length (50mm) is great for portraits, high fashion, or event photography. If you have a larger budget and want something better in low light and a little sharper try the Canon 50mm f/1.4.
At some point you will need a wide angle lens which will allow you to capture more in a shot. The wider the lens the more you can capture in one shot. Wide angle lenses are great fro landscapes, Architecture, or group photos. However, the aperture will be higher causing it to not perform as well in low light situation. The is important when it comes to indoor photography or event where the lighting conditions are not as favorable. A great wide angle lens to purchase is the Tamron 17 - 50 f/2.8 ($499.00). Which is still a solid low light performer and allows you to capture much more in a shot.
There a numerous brands and options for lenses out there. just do your research and specify what type of work you will be doing before hand so you can use the literature to help you determine the best fit for you. I personally stay with the Canon brand because I like the way Canon lenses reproduce color and tones. Canon are a little more expensive but worth it in my opinion. I have below a list of ALL canon lenses.
I'll be happy to answer any questions you may have about this.
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