Question about Kodak EasyShare Z740 Digital Camera

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Focus problems auto focus sometimes works sometimes doesnt, other times takes several attempts to get it focused.

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Finger of sensor perhaps?

Posted on Jul 18, 2008

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It won't take pictures sometimes. push the shutter button and nothing happens.


The Nikon D40 in Auto Focus mode will only allow the shutter to operate when the image is in focus. When looking through the viewfinder, the bottom edge provides information relative to what you are looking at. See the image below:

steve_con_1.gif

Item 2 is the focus indicator. It must be illuminated to allow the shutter to release. If it is not illuminated, the lens has not been able to determine the correct focus. This can happen when attempting to take a picture in low light conditions. Make sure that the front facing "focus assist lamp" on the camera (between the shutter release and lens) has not been blocked or disabled (Settings Menu # 09) and try again. Many times, you will see and or hear the lens "hunt" for proper focus - the lens will travel from one end of its focus range to the other trying to find focus. When it can't, it stops and prevents the shutter from releasing. You can get around this "unable to focus" issue by changing the position of the switch on the lens to "Manual Focus" mode, detailed below:

If a lens has an "A - M" switch, move it to "M" to manually focus. If the switch says "M/A - M " then leave on M/A (unless you're going to be taking several or more in manual mode), as these lenses may be focused manually at any time in either position. As soon as you tap the shutter button in M/A you return to autofocus.



More advanced lenses, like the 18-200mm, 70-300mm VR and 18-135mm, and any lens with an M/A position, may be focused manually at any time without moving any switches. Leave them in their A or A/M positions.

I hope this helps and good luck!

Jun 13, 2011 | Nikon D40x Digital Camera

1 Answer

My autofocus on my canon 500d camera is not working properly. I find i have to switch to manual focus to take the pictures, even in all the atoumatic settings. I have only noticed this problem occurring in...


All auto focus cameras use contrast to focus so if you are attempting to focus on glass, chrome, blank sky, large body of water, painted wall, mirror, or any other low contrast subject the auto focus will fail. Another place auto focus will fail is when you are to close to your subject you my not be physically to close but have used the zoom to give a closer shot.

May 28, 2011 | Canon EOS 500D / Digital Rebel T1i Digital...

1 Answer

Hi I bought my canon 1000d on september 2009 and a year later the autofocus doesnt want to work. In the viewfinder on the far right a number 9 has a green dot flashing next to it. Please help!! Ruthven...


The 9 you see is the maximum "burst" which is (pictures made in rapid succession) and is not an issue with your problem at this time the flashing green dot is the in focus confirmation light and it's good that you are seeing this as we will use it to remedy the problem.
Diagram
tri3mast_180.jpg

Manual focus switch
Diagram here
tri3mast_181.jpg
What I want you to do is put the AF-MF switch in the manual mode if it's already in manual mode then that was your problem switch to AF and go take some pictures. If it's in AF mode switch to MF make sure teh camera is on and look through the viewfinder at a subject say 15 feet (4.5 meters) away something that has contrast then turn the manual focus ring on the camera slowly until it appears to your ey that it's coming into focus when it's in focus the green light will come on solid, now you know what you are looking for focus an several different objects at different distances and focus manually. Now switch the lens over to AF (auto focus) and focus on the same thing but let the camera do the focusing What auto focus will not focus on in something with little or no contrast like water clear blue sky a painted wall mirror chrome glass and a few other things.
Here is another diagram to check make sure you are in the correct mode.
Diagram
tri3mast_182.jpg
Now for the focus point in the viewfinder make sure it's in the center position.
tri3mast_183.jpg
To adjust the focus point do this
tri3mast_184.jpg
Once you have the camera set to the center focus point and the correct AF mode (one shot) auto focus should return to your camera. Have fun Robert from London Ontario Canada

Jan 10, 2011 | Canon EOS Digital Rebel XS / 1000D IS...

1 Answer

Intermittantly does not auto focus properly sometimes focuses when the picture is taken and sometimes remains blurred Nikon coolpix 3200 12.0 megapixel


Hi,

Your Nikon Coolpix 3200 Digital Camera is equipped with a AF assist illuminator which makes focus easier when shooting in darker situations.

In spite of that, on occasion, it is quite possible that the camera will fail to achieve sharp auto-focus.

Point and Shoot cameras use a contrast-based focusing system: this works only when the contrast in the composition is high.

When you press the shutter halfway down the camera attempts to focus, but if it shows red brackets it implies that the focus has not been achieved.
Please take care to note this indication, and if you do not see the Green "Focus Lock" indicator, please attempt to recompose the shot.

Release the shutter, press halfway through again and wait for a focus lock.

The sensor on a P&S camera is very small (about 8-9x smaller in surface area compared to DSLRs)
In low light conditions achieving focus can be a challenge for P&S cameras.
These are technical limitations which are not specific to your camera but common to all cameras in the same segment across various camera manufacturers.

Sep 11, 2010 | Nikon Coolpix 3200 Digital Camera

3 Answers

Ive got the nikon d40. when i take photos close up they are blurred. there r 2 settings on the focus lense one is letter a one letter m. you have to move switch to indicate one or other. camara wont take...


The letters you're referencing is the M/A (manual / auto) focus switch. The lens has this switch and operates in Auto Focus mode when set to "A" and manual focus mode when set to "M".

You have to manually focus on the subject when in letter "M". If you do not, the result will be out of focus. From your description, it sounds like the camera / lens combination is attempting to focus and operate the shutter in auto, and focusing in manual; but due to some type of damage resulting from possible mishandling, exposure to dust, dirt or even moisture is interfering with the successful completion of the process.

You could isolate the problem to determine if the cause is in the lens or camera by simply attaching the lens to another compatible Nikon camera or placing a different auto-focus lens on your D40. The problem will either stay with your D40 or follow the lens when attached to a different camera. It is also *possible* that due to numerous attempts of auto-focusing with your D40 & lens combination, that both the lens *and* the camera have been damaged. If the problem is severe enough, the problem in the failed device could cause failure in the otherwise normally working device, too.

You might be best served by contacting Nikon Service & Support below:

http://www.nikonusa.com/Service-And-Support/Service-And-Repair.page

You also said you lost your manual. You can download the manual for the D40 directly from Nikon in your choice of English, French or Spanish from the link below:

http://support.nikontech.com/app/answers/detail/a_id/14157/session/L3NpZC9YRTgxQVpKag%3D%3D/kw/D40%20manual/p/19%2C334/c/187/r_id/116678/sno/0

Good luck!

Oct 09, 2009 | Nikon D40 Digital Camera with G-II 18-55mm...

1 Answer

Auto focus is not working properly and will not


You want to charge people for a membership to get answers from your site
but you want me to "tell you how I did it" for free. Hmmmmmm?

Sep 09, 2009 | Canon Digital Rebel / EOS-300D Digital...

1 Answer

Auto Focus not working


It depends on how long you have owned the camera, but I find it doubtful that it would be waring out. Sometimes after messing with the auto focus buttons my camera no longer focuses on its own, I then reset the settings and re-select auto focus. This always fixes my problem. I hope you find a solution. God bless...

Aug 16, 2009 | Digital Cameras

1 Answer

Iso to auto


On the back of the camera to the Right of the LCD there is a up-down-left-right-center switch. push the up one. (Labeled ISO) then use the same selector switch to select the ISO you want and then press the shutter half way down. If you are shooting in a low light situation, the auto focus sometimes will not work. Change the switch on the lens from AF to MF and focus manually.

Sep 26, 2008 | Canon EOS 400D / Rebel XTi Digital Camera

1 Answer

Nikon D70 SLR Auto Focus


problem in lens censer replace it

May 14, 2008 | Nikon D70s Digital Camera

3 Answers

Nikon D40X stopped auto-focusing yesterday


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.

Feb 24, 2008 | Nikon D40x Digital Camera

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