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Choosing the right lens

Choosing the right lens. Objectives. Lens are not interchangeable between manufacturers. Be able to explain what focal length is. How to identify the specifications of a lens. Know the four basic ranges of lenses and what their uses are. Be able to explain what an aperture is.

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Choosing the right lens

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  1. Choosing the right lens

  2. Objectives • Lens are not interchangeable between manufacturers. • Be able to explain what focal length is. • How to identify the specifications of a lens. • Know the four basic ranges of lenses and what their uses are. • Be able to explain what an aperture is.

  3. Why the right lens is important • By using an interchangeable camera lens, you'll be able to exert more control and creativity over the picture-taking process. • Your photos will look better, more vivid, and more professional.

  4. Digital Single Lens Reflex • This is a digital camera that supports interchangeable lenses.

  5. All lenses are not the same • Before you even get started down the road of selecting a lens, you have to know the brand of digital SLR camera that you're going to get. • Here's why: lenses are not interchangeable. • The key to understanding which lens will work with your digital SLR can be summed up in two words: lens mount.

  6. Focal Length • On the side of each lens is the focal length, which is measured in millimeters. • This measurement will determine how close you need to be to the subject in order to take their picture.

  7. How to identify the lens

  8. Focal length Scenarios • Let's say that you have a short 50mm lens. In order to get a close-up of your friend you stand 5 feet away. • You switch to a long 200mm lens. Now you must stand farther away from your friend (say 15 feet) to capture the same image.

  9. 4 Basic Lens Types • Wide Angle 28mm or lower • Standard Anything from 35mm to 85mm • Telephoto Anything from 100mm to 300mm • Super-Telephoto 300mm or higher

  10. Wide Angle Lens Standard Lens

  11. Telephoto Super Telephoto

  12. Wide Angle 28mm or lower • Wide angle lenses are ideal for photographers who want to capture all of the scenery in front of them. • These lenses can capture virtually everything that your eyes see in front of you - from the ground at your feet to that mountain in the distance. • Wide angle lenses are not great for portraits because they distort facial features: the most noticeable problem is that they make noses look HUGE which is not terribly flattering for your subject.

  13. Standard 35mm to 85mm • Standard lenses are great for a wide range of photographic subjects, but excel at portraits. • Lenses in the 50mm to 75mm range create natural-looking portraits without the facial distortion that you get using a wide angle lens. • While you can certainly use lenses in this range for landscapes, the resulting photo just won't have the same impact as it might with a wider view.

  14. Telephoto 100mm to 300mm • Telephoto lenses also work well for portraits but also cause some distortion: the longer the focal length of a lens, the more it compresses the visual space. • What are they really good at? Getting you up close and personal with subjects that are far away. • This is why they are ideal for non-pro sporting events - you can stand on the sidelines, but still get a close-up of the game winning goal.

  15. Super-Telephoto 300mm or higher • These lenses are almost exclusively the domain of professional photographers, and are extremely expensive. • They are used by wildlife photographers, where getting up close is not an option. • They are also the lenses you see at any professional sporting event. • A super-telephoto lens really compresses visual space, and requires a lot of skill to use effectively.

  16. Fish-eye camera lenses • A fish-eye camera lens is an extremely wide-angle lens. It creates a distorted image that appears convex.

  17. Focal length Bonus Info • Measured in millimeters, this represents the distance between the optical center of a lens and its focal plane. • The lower the focal length, the wider your angle of view; the higher the focal length, the narrower the angle of view.

  18. Aperture Bonus Info • Latin for “opening,” aperture indicates how much light a camera lens lets through to the focal plane. • The smaller the aperture number (f/2.8, for example), the more light a lens will let in, thus better controlling the brightness of the exposure. • The more light a lens allows through, the faster the shutter speed.

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