In Program mode, when you meter a scene by half-pressing the Shutter button, the camera calculates an appropriate shutter speed and aperture. There will be times though when you know that you're going to want a lot of control of shutter speed. Maybe you are shooting a sporting event and you know that you want to perfectly freeze motion. So you want to make certain that the camera is always using a fast shutter speed. Or, maybe you are shooting a landscape with some moving water in it and you know that you want that silky smooth blurry water in all your shots. So you want to be certain that you're always using a slow shutter speed.
In Shutter Priority mode, you can choose the shutter speed that you want. And when the camera meters, it will automatically pick a corresponding aperture that will yield a correct exposure. Shutter Priority is marked on the mode dial with TV, That's Time Value, because again I am going to be dialing in the time, the shutter speed that I want, and the camera is going to calculate a corresponding aperture. So let's say that I'm shooting in a fast- moving race car or something like that. I might dial in a very fast shutter speed and when I meter, I get a corresponding aperture.
Or, perhaps I'm shooting a lovely flowing stream out in the wood somewhere and I want a slow shutter speed to really blur out the water and now I get a different aperture. I am on Auto ISO, so that when I went up to that fast shutter speed, the aperture opened as wide as it would go. On this particular lens at this focal length, I can't go any wider than F4.0, so notice it cranked the ISO up to 800. Watch what happens if I force the ISO to 200, I'll take that, and now when I meter, it's flashing the aperture indicating that I have a bad exposure.
It will take the shot anyway, but the shot is probably going to be underexposed. So if these lights start flashing, you know that you're out of the realm of good exposure. As in Aperture Priority mode, Exposure Compensation respects my shutter speed decision. Let's turn it back down to something a little more reasonable. And as I meter and change Exposure Compensation, only the aperture is changing. It won't touch my shutter speed. Shutter Priority does not allow you to take any shots that you couldn't take in Program mode using Program Shift.
Rather, it simply provides you with a speedier way to get the shutter speed-based exposure settings that you want.
Get unlimited access to all courses for just $25/month.Become a member
164 Video lessons · 54271 Viewers
64 Video lessons · 86253 Viewers
86 Video lessons · 55697 Viewers
148 Video lessons · 93048 Viewers
Access exercise files from a button right under the course name.
Search within course videos and transcripts, and jump right to the results.
Remove icons showing you already watched videos if you want to start over.
Make the video wide, narrow, full-screen, or pop the player out of the page into its own window.
Your file was successfully uploaded.