Canon 7d what is ae lock

Jan 03, 3. Jan 03, 4. Jan 03, 5. Jan 03, as a reply to Edwin Herdman's post 6. You can skip the AE lock and assign your shutter button to lock exposure. Jan 03, 7. Jan 03, 8. MesserschmittMan wrote in post Oh right. Jan 03, 9. TeamSpeed TeamSpeed Jan 03, Veemac wrote in post One such example that immediately comes to mind would be if you wanted to shoot a silhouette of somebody in front of a sunset.

Jan 03, as a reply to TeamSpeed's post Nice example and shot Teamspeed For me in these cases I move to Manuel mode for exposure control and focus on the desired place Well amfoto explained it very well below.

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Jan 03, 1 If you metered for your subject who was positioned in the center of the viewfinder then pressed the AE Lock button to lock down the settings before recomposing the scene for a better composition wouldn't this be the same as holding the shutter button down halfway to lock the settings before recomposing for an improved composition?

Jan 03, 2 MesserschmittMan wrote in post If you metered for your subject who was positioned in the center of the viewfinder then pressed the AE Lock button to lock down the settings before recomposing the scene for a better composition wouldn't this be the same as holding the shutter button down halfway to lock the settings before recomposing for an improved composition? Jan 03, 3 Oh right. Jan 03, 4 In the default settings, AEL will lock the exposure, and then if you "focus and readjust" the exposure will stay the same.

Jan 03, 5 It is this situation that makes the back-button focus so useful: With the focus button, you don't have to worry about another half-press of the shutter to readjust focus, and you can easily correct any focus error from moving the lens.

Jan 03, as a reply to Edwin Herdman's post 6 You can skip the AE lock and assign your shutter button to lock exposure.

Jan 03, 7 MesserschmittMan wrote in post If you metered for your subject who was positioned in the center of the viewfinder then pressed the AE Lock button to lock down the settings before recomposing the scene for a better composition wouldn't this be the same as holding the shutter button down halfway to lock the settings before recomposing for an improved composition?

Jan 03, 8 MesserschmittMan wrote in post Oh right. Jan 03, 9 musashi wrote in post If everything is set as default, half pressing the shutter and recomposing will also change your exposure. Jan 03, 10 Veemac wrote in post One such example that immediately comes to mind would be if you wanted to shoot a silhouette of somebody in front of a sunset.

This is where the Exposure Lock button comes in; it freezes whichever exposure parameter was set by your camera until you take a picture. At first this might sound like a silly thing to do but makes a bit more sense when you understand how it can be used.

Unfortunately my camera was looking at the entire scene, not just the subject, and chose a shutter speed that resulted in my subject being far too dark. The tradeoff was that the background was properly exposed, but my camera did not know that I was more concerned with the teddy bear than the scenery outside. To correct the problem I simply pointed my camera down at a darker spot in the foreground, pressed the Exposure Lock button, and held it down while recomposing my shot to the original framing.

The outside looks great, but my subject is horribly underexposed. Far too slow for the background to be properly exposed, but my subject looks just fine. You might look at this photo and wonder where the background went, but remember what happened in the original when the background was visible — the subject was too dark.

If you focus your camera on the action in the city square, chances are that the sky will likely be extremely bright and lose its blues. By pointing to the sky and locking the exposure, then re-composing your frame to shoot the square, you will retain those sky blues while capturing the action below.

AE Lock is also useful where you want to achieve a consistent exposure setting over a number of sequentially captured images. All you need to is keep holding down the AE Lock button as you continue to take your shots. View the glossary.