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Controlling Exposure

Lesson 11 from: Mastering Your Digital Camera

Chris Weston

Controlling Exposure

Lesson 11 from: Mastering Your Digital Camera

Chris Weston

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Lesson Info

11. Controlling Exposure

Lens aperture and shutter speed work together to create an image with proper exposure, or a photo that's not too light or too dark.

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Lesson Info

Controlling Exposure

to make a photograph, you need light. Once you've got some light, you've got to get it into the camera. Now I don't want to let him too much or too little. You want to let in just the right amount. You manage that using a combination of controls lens, aperture and shutter speed lens aperture controls the quantity of light entering the camera. Shutter speed controls length of time. The sensor is exposed to that light lens. Aperture and shutter speed always work together to maintain a correct exposure. If you change one, you have to make an equal and opposite change in the other, and there's no single or correct combination. In fact, as you can see from this chart, there are many possibilities. This is an exposure value table on the lens after and shutter speed you see in the viewfinder. Based on this table before auto exposure, we used to use one of these or the time now not so much, but they are really great tool for helping to understand this relationship between lens aperture and shu...

tter speed. Right now, what's most important is knowing that you have a lot of flexibility when choosing the combination, and that's because the numbers relating to lens aperture and shutter speed a meaningful

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Ratings and Reviews

mark jacobson
 

What a marvelous course! What a marvelous teacher! When I went to college, my father would always ask me about my professors, more than the courses themselves. He was passionate about learning and although too busy with earning an income to go beyond an undergrad degree, continued to read 50 books a year. I still remember how he'd get almost visibly excited when I'd tell him about some special professor who taught with such enthusiasm and, more than just passion, evident delight and joy in the subject. 'Ah they're the best, son. How wonderful you have such a teacher." Well, he passed away decades ago but if he were still around I'd get a kick out of telling him about Chris Weston, the 'Prof' of this course. He's one of the very special ones: a teacher who's loved and lived his vocation--his avocation--since he was a boy--and still is as excited about it now as he was then. The result: a course that seems to be more a labor of love--of pouring far more energy and thought into the details then one typically finds in these courses--than anything else. Bravo Chris! I'm already on to your next one.

user-6402bf
 

Chris is an amazing instructor who dissects theory giving amazing analogies that bring concepts to life. I have rarely been able to sit through most video course for more than a half-hour but watched this one from beginning to end. A good refresher course if you've been away from the camera for awhile or there are some concepts that still illude you. I highly recommend this course and look forward to watching his others. Thank you for the clarity and great explanations.

Sky Bergman
 

This was an amazing class. I have looked at a number of basic photography classes. This one was by far the best I have seen. Chris is an exceptional teacher. He breaks things down into digestible information and then inspires you to be creative. Thank you!

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