I have a Canon zoom lens EF-5 18-55mm for my Canon EOS 450D. I am having trouble with my AF. If I set it on AF it will not focus automatically, but if I manually turn the lens for a close up it will then take the picture. Then and only then will the AF for long distance shot come into operation! After taking that shot it reverts back to not focussing. What can I do, if anything, to rectify this malfunction? Cheers Geraint Evans
i also got excatly same problem... it happen after i take off my lens. then after i want to use it back, auto focus mode was not function anymore.. plese,, help me..i also got excatly same problem... it happen after i take off my lens. then after i want to use it back, auto focus mode was not function anymore.. plese,, help me..
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In automatic mode and automatic focus - The camera should focus onto the subject given that there's enough contrast between your subject and the background. If it not focusing at all even in broad day light conditions - You lens is faulty. Also - Do you or your friend have another lens to test if the camera is faulty?
You haven't stated which body you have but the AF will not work with the extender if the effective lens aperture is too low (remember that a 2x extender doubles the focal length but halves the effective aperture).
Canon's own website states: "Autofocusing does not operate if the effective maximum aperture is
greater than f/5.6 (greater than f/8 on the EOS 1V and EOS 3)."
this may have to do with the lens rather than the camera, try swapping the lens with another one and see if the same problem happens in AF mode with the new, borrowed lens, also remove lens and check that the gold connector between the two are clean carefully wipe with a dry q tip but be careful not to allow dirt to fall into camera body.
ho.....ho... I have this prob in my canon EOS kiss SLR. CHECK THAT>>>>>>> Hold the camera vertically.Switch on the AF and let the camera to auto focus.!!!!!!!!!!!!!!!! Don't wondering....Check ur camera's sub mirror in the in side of the sub mirror.The spring that push back sub mirror from the main mirror is broken.......! How to repair this? Follow this link.... http://www.facebook.com/home.php?#/album.php?aid=2042115&id=1359757176 bye..
I'll assume the lens is an AF lens? Most of the new Canon bodies require AF contacts. If there isn't the right contacts, it won't work. There are suppose to be AF body mounts that will tell the body that there is an AF lens, then use the old lens in Auto mode. If it's an AF lens, the internal electronics are toast. You could send it out, but they'll charge you a "look at" fee. That could run into many bucks. Give Canon a call.
Autofocus is activated by pressing the shutter button halfway, be shure to have a EF lens in the camera, otherwise it won't make autofocus, put camera on full auto mode or "sports mode" (the running guy) and the focus settings on redictive AI Servo AF: Continuously tracks subject movement and achieves focus before the exposure starts.
Get the Canon EF 70-300mm IS USM about $500 and EFS 17-85mm IS USM about $300. The 75-300 all of them I would not use them 4 a body cap. Camera is fine or step up to XSI.
yes ef stands for electric focus which is what your camera mounting should be check your mounting to make sure its EF and if it is go for it. also the mounting type might be in your hand book
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