Question about Akai PTH5498 54" Rear Projection HDTV-Ready Television

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Auto Focus Stoped Working

The Auto Focus bar appears but theres no improvement in the picture it stays the same. Also picture appears to have a slight 'washed out' look. TV is 3 years old model Akai 1080I 54 in rear projection.

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If the convergence is very far off the convergence ICs are bad and need to be replaced first. If the convergence is close and it wont correct it might just be an insect or some dust on the sensors at the 12, 3, 6 and 9 o'clock posistions behind the screen.

Posted on Aug 22, 2008

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My Canon Rebel XS will not auto focus correctly. It sounds like it is trying to focus, but only flashes and will not focus or take the picture.


Those quick fast flashes usually mean the camera is trying to find contrast to take the photo but it can't. The scene might be to dark and the camera can not set it's focus and there for cannot take a picture. Move the camera slightly from left to right on the subject and see if it can manage to set focus. It's normal for the camera to give out these quick flashes as it is trying to find some sort of contrast in the subject, turning on a room light might help this?

Now when you manually focus, then the camera does not have to use it's built in auto focus sensor and will let you take a photo when you manually focus on the subject.

Sep 30, 2012 | Canon Rebel XS / Eos 1000D Digital Camera...

1 Answer

Infinity focus isn't working anymore


ahaha.... never mind. I was dinking around with it again and turns out, infinity focus only works if facial recognition is on... why, i don't know.

Apr 10, 2009 | Casio Exilim Zoom EX-Z80 Digital Camera

1 Answer

Auto focus isn't working


Check the lens. If the switch is set to MF then it is in Manual Focus.

Another cause could be custom function 4 - try setting this to 0 for the default

Apr 08, 2008 | Canon Rebel XT / EOS 350D Digital Camera

1 Answer

Auto focus problem


My first suggestion is to send it back if it is under warranty.

The grease probably got so thick, from the cold, that it caused too much resistance for the auto-focusing mechanism. You probably have damaged the focusing mechanism in the lens. You cannot repair this, yourself. I don't know how cold is too cold but it really shouldn't have done that.... Tamron makes cheap lenses. Try and exchange it for at least a Sigma.

Dec 24, 2007 | Tamron 18-250mm F/3.5-6.3 AF Di-II LD...

1 Answer

Better Focus


There are several factors that can contribute to getting better focus and improved results. 1. Auto Focus / Auto Exposure lock. Press the shutter button down HALF WAY. The camera will attempt to adjust exposure to the current lighting environment for maximum benefit. Then the camera will automatically correct the focus based on objects in the center of the display. This process usually takes about two to three seconds. 2. Be sure not to cover the sensor on the front of the camera with your finger. This will disable the automatic focus and exposure controls. 3. Only us the MACRO MODE for CLOSE-UP photography. Be sure to use MACRO MODE if you are taking pictures of an object at less than six inches away. Be sure not to use Macro Mode for Normal Photography. Using MACRO MODE improperly will result in poor focus (also known as 'fuzzy pictures'). 4. Motion can cause a "blur" effect. Either motion of the subject, or motion by the photographer. This phenomenon is just like traditional photography. Moving objects may appear to blur, and this will be even more evident in lower lighting situations as the shutter speed slows down to allow for more light. The shutter will react faster in bright light, and motion will not be as apparent.

Sep 11, 2005 | Toshiba Sora PDR-T20 Digital Camera

2 Answers

Better Focus


There are several factors that can contribute to getting better focus and improved results. 1. Auto Focus / Auto Exposure lock. Press the shutter button down HALF WAY. The camera will attempt to adjust exposure to the current lighting environment for maximum benefit. Then the camera will automatically correct the focus based on objects in the center of the display. This process usually takes about two to three seconds. 2. Be sure not to cover the sensor on the front of the camera with your finger. This will disable the automatic focus and exposure controls. 3. Only us the MACRO MODE for CLOSE-UP photography. Be sure to use MACRO MODE if you are taking pictures of an object at less than six inches away. Be sure not to use Macro Mode for Normal Photography. Using MACRO MODE improperly will result in poor focus (also known as 'fuzzy pictures').

Sep 11, 2005 | Toshiba PDR-3330 Digital Camera

1 Answer

Blurry Pictures


There are several factors that can contribute to getting better focus and improved results. 1. Auto Focus / Auto Exposure lock. Press the shutter button down HALF WAY. The camera will attempt to adjust exposure to the current lighting environment for maximum benefit. Then the camera will automatically correct the focus based on objects in the center of the display. If the camera can automatically set the focus and exposure, the LED by the viewfinder will turn GREEN. If the camera can not adjust the settings automatically, the LED will turn RED. This process usually takes about two to three seconds. 2. Be sure not to cover the sensor on the front of the camera with your finger. This will disable the automatic focus and exposure controls. 3. Only us the MACRO MODE (Flower Icon) for CLOSE-UP photography. Be sure to use MACRO MODE if you are taking pictures of an object at less than six inches away. Using MACRO MODE improperly will result in poor focus. 4. Rely on the Rear LCD Display. When in doubt, trust the LCD. The LCD will display the subject more accurately than the viewfinder. This will help with "framing" the subject, or determining if you have enough light for proper exposure. 5. Motion can cause a "blur" effect. Either motion of the subject, or motion by the photographer. This phenomenon is just like traditional photography. Moving objects may appear to blur, and this will be even more evident in lower lighting situations as the shutter speed slows down to allow for more light. The shutter will react faster in bright light, and motion will not be as apparent.

Sep 11, 2005 | Toshiba PDR-3320 Digital Camera

1 Answer

Focus


There are several factors that can contribute to getting better focus and improved results. 1. Auto Focus / Auto Exposure lock. Press the shutter button down HALF WAY. The camera will attempt to adjust exposure to the current lighting environment for maximum benefit. Then the camera will automatically correct the focus based on objects in the center of the display. This process usually takes about two to three seconds. 2. Be sure not to cover the sensor on the front of the camera with your finger. This will disable the automatic focus and exposure controls. 3. Only us the MACRO MODE for CLOSE-UP photography. Be sure to use MACRO MODE if you are taking pictures of an object at less than six inches away. Be sure not to use Macro Mode for Normal Photography. Using MACRO MODE improperly will result in poor focus (also known as 'fuzzy pictures'). 4. Motion can cause a "blur" effect. Either motion of the subject, or motion by the photographer. This phenomenon is just like traditional photography. Moving objects may appear to blur, and this will be even more evident in lower lighting situations as the shutter speed slows down to allow for more light. The shutter will react faster in bright light, and motion will not be as apparent.

Sep 11, 2005 | Toshiba Sora PDR-T30 Digital Camera

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