300d refuses to focus-help

[selym]

Hi,

My brother and I recently went digital, and like "two of the three blind mice," we're struggling though the learning curve.

A problem with the camera is that in AF mode, the lens keeps moving in an out but refuses to focus...

Everything looks ok, abattery is fine etc...and we've compared settings etc on each others camera , but cannot work out why this is happening or how to overcome.

All suggestions would be appreciated.

regards,

S:evil: elym,

[tim]

Are you pointing the camera at something well lit that has a reasonable amount of contrast? And what lens are you using?

[Planet-Ed]

Have you swapped the lenses between the two cameras?

[FlipsidE]

If I point my 300D at somethinng flat and of the same uniform texture and color, it usually won't ever focus on it...nothing for it to use as a reference I guess. That's something I would expect but, that's the only time it won't focuse.

FlipsidE

[selym]

Thanks guys, yes have swapped lens, standard as well as long lens...same result.


also tried the contrast etc.

thanks anyyway

selym

[Jon]

But what lenses and under what shooting conditions are you working? Also what are the camera settings when this occurs? Does it happen outside on a bright, sunny day when you're using a wide-angle lens in Landscape (Basic) mode? In a gymnasium while using a long lens at f/5.6 and Continuous Drive? The conditions you're working in can make a significant difference in this (which is not to say this couldn't be a problem with a camera or a lens, but since it happens to both of you, it may be situational).

[selym]

Jon,

thanks for the reply, inside or outside re. the shots unfortunately.... I believe the last setting prior to the problem was for continuous shooting........

I may have confused the issue by mentioning two camers.sorry....we have both bought 300d.'s ...but the problem is only with one, ( my brothers one) when I mentioned changing lens etc, I meant interchanging to be sure ( or as sure as we could be) that it was not a lens problem......

The lens appears to be hunting for a focus point- unsuccessfully. Could my Bro' have inadvertently set a lock or mucked up the setting( as I mentioned we are both new to the 300 d so this is a possibility) e.g. things like or similar to AE lock, etc. or the continuous shooting mode.

We also compared menu settings etc to look for obvious diparity...no avail...

We've taken out the battery for a while as well as the above, Resetting factory setttings might be an option in the menu but not sure on this.

I'm certain it is something small that we are both missing, he on the otherhand is more concerned that it is a major camer problem.

all suggestion welcome.

Regards

Selym:evil: :evil: :evil:
But what lenses and under what shooting conditions are you working? Also what are the camera settings when this occurs? Does it happen outside on a bright, sunny day when you're using a wide-angle lens in Landscape (Basic) mode? In a gymnasium while using a long lens at f/5.6 and Continuous Drive? The conditions you're working in can make a significant difference in this (which is not to say this couldn't be a problem with a camera or a lens, but since it happens to both of you, it may be situational).

[tim]

Return it to where you bought it, or send it to Canon.

[Scottes]

You have two parts, lens & camera. Both lenses work on Camera A. Both lenses fail on Camera B.

By applying Broegl's concepts of initial mechanical failure analysis and logic we can see that the single solution would be to "Return it to where you bought it, or send it to Canon."
:-)

[ssim]

By applying Broegl's concepts of initial mechanical failure analysis and logic

WOWhttp://www.photography-on-the.net/forum/images/smilies/icon_biggrin.gifhttp://www.photography-on-the.net/forum/images/smilies/icon_biggrin.gif

[Phil V]

"A problem with the camera is that in AF mode, the lens keeps moving in an out but refuses to focus..."

"I believe the last setting prior to the problem was for continuous shooting........"

Are you sure you haven't put it in sports shooting mode? where it'll switch to AI Servo focussing and switch off the confirmation beeep and light?