Lesson Info
17. Aperture Priority Exposure Mode
Lessons
Buttons, Dials and Switches: What This Course is All About
03:37 2Setting Up Your Camera
05:25 3JPEG or RAW
03:11 4Compression
01:38 5Menu Settings for JPEG Shooting
05:19 6Module 1 Summary
01:42 7Applying White Balance
03:41 8Using White Balance Creatively
01:19Auto White Balance
03:07 10Module 2 Summary
01:31 11Controlling Exposure
01:23 12F Numbers
03:06 13Lens, Aperture, and Shutter Speed
03:32 14Exposure Modes
01:48 15Too Little or Too Much Light
02:34 16Manual Exposure Mode
01:37 17Aperture Priority Exposure Mode
02:23 18Module 3 Summary
01:40 19ISO in Practice
01:16 20ISO and Noise
05:03 21An Acceptable ISO
01:23 22Module 4 Summary
01:29 23Metering Modes
03:06 24The Light Meter
02:11 25The Bucket Test
02:12 26How To Read Tonality
02:32 27Being Creative With Tone
01:14 28Exposure Compensation
01:35 29High Contrast Lighting
03:39 30Histogram
02:06 31Highlights Alert
01:32 32Never Underexpose
04:16 33Digital Exposure Mantra
01:25 34Module 5 Summary
02:57 35Focus Modes
01:23 36Autofocus
02:59 37Point of Focus
02:35 38Depth of Field
02:41 39Hyper-Focal Distance Focusing
02:51 40Focus Tracking
04:19 41Manual Focus
01:57 42Predictive Focus
01:03 43Summary
02:32 44Buying Lenses
05:00 45Summary
01:45 46Quality of Light
01:32 47Direction of Light
01:52 48No Such Thing as Good Light
02:00 49Final Word
02:52 50BONUS - In Conversation with Art Wolfe
07:11 51BONUS - The Source of Creativity
06:34Lesson Info
Aperture Priority Exposure Mode
when I arrive on location, the first thing I do is work out my fastest and slowest shutter speeds. Given the available light in my preferred I S O, I set the camera toe aperture priority exposure mode and I said the lens aperture to the widest setting and make a mental note of the shutter speed. This is the fastest speed available to me. Then I changed the absence of the smallest setting and again make a mental note of the shutter speed in. This is the slowest speed available to me now. This simple exercise very quickly tells me my shutter speed range for the conditions I'm working in. And that's important because as a wildlife photographer, shutter speed is almost always my dominant variable. Now you're probably confused. If shutter speed is my dominant variable, why don't I work in shutter priority exposure mode? The average lens has between six and eight. Stop variation and aperture from somewhere around 2.8 to about F 22. Most digital cameras have a 19 stop range in shutter speed f...
rom 30 seconds to 1 8000 With so many shutter speed, options is very easy to set a shutter speed for which there is no corresponding lens aperture available. For example, an average lighting. My shutter speed might be from 1/4 of a 2nd 11 thousands in very bright light. That range might be 1/30 June 8000 and in low light, it could be one second 21 2/50 in each of these scenarios. If I said to shutter speed outside of the available range, which is very easy to do when the cameras set to shut a priority mode, the camera will either continue to take pictures, all of which will be either under or overexposed. Or it will lock the shutter button and stop me taking pictures at all, neither of which is good by working an aperture priority mode. Because there are so few lens apertures compared to shutter speeds, there are very few lighting scenarios where there isn't an available shutter speed. Remembering that as I change lens aperture, the cameras automatically changing shutter speed, forming it shut us me that I'm looking at because shutter speed is my dominant variable. Now it may be that the shutter speed I want isn't available, but because I'm in control of the situation. I could make a decision about how I deal with that. So I could, for example, change. I s o I am in control, and that's the reason I almost always shoot in aperture priority exposure mode.
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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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