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Can't focus
I've been having this problem for a while, want to see if anyone knows a solution..

The problem is my camera can't focus on the object, (I press down shot and all I heard this noise and it doesn't allow me to take a picture) so I did some reach and found out that I need to focus on something else (press half way down and move the focus to the original object and take picture that way). That technique does works SOMETIMES, not all the time. especially when I am shotting during the night, almost everything is hard to focus..

Is there a way I can solution this problem?LL/New York.

'Life is too short to take ugly pictures'..

Comments (8)

LL22 wrote:.

I've been having this problem for a while, want to see if anyoneknows a solution..

The problem is my camera can't focus on the object, (I press downshot and all I heard this noise and it doesn't allow me to take apicture) so I did some reach and found out that I need to focus onsomething else (press half way down and move the focus to theoriginal object and take picture that way). That technique does worksSOMETIMES, not all the time. especially when I am shotting during thenight, almost everything is hard to focus..

Is there a way I can solution this problem?.

Many cameras will have difficulty focusing on a plain object such as a flat wall. There must be some contrast such as an object on the wall or a pattern. At night this problem is compounded. Try using a larger aperture setting..

FINE PRINT: I reserve the right to be wrong. Should you prove me wrong, I reserve the right to change my mind...

Comment #1

You haven't told us what camera you're using. Does it have a manual focus setting or manual focus override option? In some situations, such as low contrast or dark scenes, manual focus works much better than auto focus...

Comment #2

I am using Canon xsi manual mode. For example, last night I want to some surrounding buidings and lights. I couldn't take a shot, I know that it's probably the contrast was too plain, so I quickly aim on something in the house (press half way) then aim back to where I wanted to shot and it took a picture. However this technique doesn't work all the time..

Any other better ways to do this?LL/New York.

'Life is too short to take ugly pictures'..

Comment #3

Cameras, any camera, can't autofocus if there isn't enough light and/or contrast. Canon is one of the best at low light function. You said you were using Manual. What was your F stop? What are the specs on the lens you are using..

When all else fails if you are shooting manual try to focus manual. If your eyes can't see well enough to focus then you are probably asking too much from the camera. I don't know the Canon but I believe it has a focus assist for low light but that will depend on how far you are from the object you are shooting..

JimOlympus E-510 and a bunch of stuff to hang on it...

Comment #4

Manual mode (where you designate the aperture and shutter speed) is not the same as manual focus. I think you may be confusing the two...

Comment #5

Yes, I meant Manual mode and not manual focus. I'll look into manual focus (never tried).

Any tips on manual focus?.

LL/New York.

'Life is too short to take ugly pictures'..

Comment #6

Whenever my Pentax K10D won't autofocus because of the low light, I use Manual focus. The nice thing is that in most cases it will still bleep whenever focus is obtained..

So listen and look carefully. And as another poster commented; If you can't manual focus yourself because of low light, you're asking too much...

Comment #7

Maddogmd11 wrote:.

Cameras, any camera, can't autofocus if there isn't enough lightand/or contrast..

That is a very good point...no contrast is difficult for the best of camera bodies..

What was your F stop? What are the specs on the lens you are using..

Aperature shouldn't matter for the purposes of AF as the camera will focus based on a wide open aperature. As a caveat, if the lense is a really slow lense, your point could be very important. Actually, now that I think of the, I beleive the XSi does have more senstive AF points when used with 2.8 or faster lenses. It would certainly be good to know which lense is being used...

Comment #8

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This question was taken from a support group/message board and re-posted here so others can learn from it.

 

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