- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The lock that's around the 4-way button that moves the AF point will stop it from moving. The AF switch (says C,S,M) on the body below the lens release button gets knocked to manual and turns off the AF
Try checking C.Fn III, 3: AF point selection method. Yours might still be on option 2.
0: Normal - Works by pressing the AF Point button and then the Multi-controller.
1: Multi-controller direct - Press the multi-controller to directly select an AF point (without first having to press the AF Point button). Pressing the AF button reinstates all AF points for auto AF point selection.
2: Quick Control Dial direct - turn the Quick Control Dial to select AF points. In this mode, AF points will not be displayed on the LCD panel.
I had the same problem. My issue was with all my lenses. I solved it by going to the menu and selecting the custom setting menu (pencil icon). Then from the right menu select the AE-L/AF-L and press OK. Then make sure it is set on AE/AF Lock. Presto...all my lenses worked on auto-focus.
I had this problem and just realised it today. I found out that it was a a settings problem. What I had done without realising was I had my "AE-lock" button functioning as "AF-ON" which meant that my autofocus would only turn on when I held the shutter half-way and pressed that button. Once I turned this function back to its original state of "AF-Lock" as opposed to "AF-ON", it worked fine.
My symptoms were:
• soft mechanical noise when holding the shutter (i thought it was trying to focus but couldn't. I thought the mechanics for the AF were faulty)
• Couldn't take photos unless they were in the set conditions (which makes sense because it was locked on a certain setting until I pressed the AF-ON button).
My camera is only a few months old so I wasn't convinced it was faulty/broken. Make sure you test all of your settings and go through each of them before you chalk it down to equipment error.
Hope this helps.
One Shot AF will focus on something and stop the AF process. One Shot AF will not fire the shutter until the lens is in focus with something. This AF mode is available in some PIC modes, like Macro mode, I think.
AI Servo AF will not lock the focus, and if the subject or the camera moves, the camera will continue to seek a sharp focus. Servo AF will allow the shutter to fire whether in focus on not. This is mode only available in the Sports PIC mode.
AI Focus starts out in One Shot AF, but if it detects subject movement it switches to AI Servo. It does not switch back to One Shot unless you release the shutter button and start over. This mode is available in P, Tv, Av, M and probably some PIC modes.
The DRebel defaults to the AI Focus in most modes but switches very easily into Servo. Much easier than any other EOS camera I've used. In fact, too easily for most people. For example if the camera locks focus and you them move the focus manually (only on lenses with FTM), or sometimes if you zoom, or even pan the camera; all of these can force the camera to switch to Servo when you don't really want it to. The Wasia (Russian) firmware hack can force the camera to stay in One Shot, but it can't force the camera to start out in Servo.
There are four focus modes: S-AF (Single auto focus), C-AF (Continuous auto focus), MF (Manual Focus), and S-AF/MF (Simultaneous mode).
(SINGLE Auto Focus): Focusing is performed once when the shutter button is pressed halfway.
C-AF (CONTINUOUS Auto Focus): The camera repeats focusing while the shutter button is pressed halfway.
(MANUAL FOCUS): The function allows you to manually focus on any subject while looking through the viewfinder.
SIMULTANEOUS USE of S-AF mode and MF mode: You can fine-adjust focus manually by turning the focus ring after AF is performed in the S-AF mode.
Occasionally it is necessary to have the ability to manually focus a digital camera. A good example is shooting through the windows of a tour bus on a rainy day. The camera may choose to focus on the raindrops on the window rather than the actual subject. To enable the MANUAL FOCUS function hold down the OK/MENU button for a second or longer. In the lower left corner of the LCD screen you will see MF (MANUAL FOCUS) and AF (AUTOFOCUS) with AF highlighted in green. Use the left arrow key to select MF. You will now be able to use the up and down arrow keys to manually focus the camera. An added feature of the C-5500 is that when you are using the MANUAL FOCUS Mode you will see a magnified portion of the image in the center of the LCD screen. To get out of MANUAL FOCUS Mode, simply use the right arrow key to reset the camera to AF. Then press the OK/MENU button to return to the default functions.