Question about Olympus Camedia C-4040 Zoom Digital Camera

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Bright pixels? All the pictures I take seem to have four bright (blue) pixels exactly in the same position, all next to each other (2x2 square) The problem is not visible unless you zoom the pic quite a lot on PC. Is this "normal", or should I take the camera back to store?

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Re: Bright pixels?

Just a thought: doesn't the C-4040Z have pixel mapping for just this eventuality? Run that, and the stuck pixel cluster should disappear. Of course, whether you should * have* to use the facility straight away is a matter of personal opinion..., but at least there is something you can do about it. Use caution though, as presumably you can't get the stuck pixels back afterwards to use as your reason for returning the camera.

Posted on Sep 11, 2005

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Change to resolution after picture taken


Sorry, can't be done. Those pixels weren't recorded, so there's no way to regenerate them.

Think of it this way. Suppose you look out the window and see a red car drive by. Look out the window an hour later and maybe a blue car drives by. Now, how many white cars drove by between those two cars? If you weren't looking (or had a surveillance camera), there's no way to tell. In your picture you've got a red pixel over here and a blue pixel over there. There's no way to tell what was in between.

There are some tricks that can be done to interpolate. If you have a bright red pixel and next to it a dark red pixel, then the pixel between them probably was a medium red. But maybe not: there could have been a blue object in between. Or the pixel in the middle might have been the same color as one of its neighbors. There's just no way to be certain.

Mar 30, 2013 | Nikon Coolpix S800c - Digital camera -...

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Why are my pictures so blurry.. HELP PLEASE!!


Hi Lindsay Davi,

First, make sure you have the file size set to the highest size and highest quality. Small file size and low quality settings produce small files with pixelization.

Second, no camera performs as well in low light as it does in bright light. It sounds like you are new to photography, so you should start out by shooting in bright light - outdoors in the sun. Once you know how to take good photos in the sun, then you can try taking photos when it is overcast, or in bright shade (on a sunny day but outside of the direct sunlight). As you develop more experience in taking photos you can try more difficult lighting situations such as indoors.

Flash lighting is difficult because the light "falls off" quickly as the distance from the flash to the subject increases. The camera's flash tries to put out enough light to illuminate both the subject closest to the camera and to also try to light the background, but this is often impossible. So the subject is too bright, and the background remains dark. If your subject is further away, the lighting evens out some. If your subject is close to the background (e.g. standing in front of a light colored wall) the camera will get the flash exposure set to a better value and the photos will come out better.

It would also help to get a book on basic photography.

Dec 26, 2008 | Nikon Coolpix S550 10 Megapixel Digital...

1 Answer

A week ago I purchased a Canon Ixus 970 digital camera. When using in dark conditions yesterday, I noticed two bright blue dots on the LCD screen. I've switched the camara off and on again and have...


You could try taking it back to the store if the (what seems like) the dead pixels are "distracting" you or "annoying" and if you are lucky you might get it exchanged.

It partially depends on the amount of the dead pixels present as for an LCD screen to be classed as being defective 0.01% of all of the pixels on the screen must be "dead".

God luck if you will try to exchange it.

Nov 07, 2008 | Canon Digital Cameras

2 Answers

Tiny spot on images


New camera - this is not going to get better

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1 Answer

Small bright dot


Pixel Mapping is a feature of the camera to check and adjust the CCD and image processing functions. Locate Pixel Mapping in the camera's Menu and select OK to activate it. Once Pixel Mapping is completed the Menu displays. The bright dot should no longer appear in your downloaded images.

Sep 04, 2005 | Olympus Camedia C-60 Zoom Digital Camera

1 Answer

Small bright dot


Pixel Mapping is a feature of the camera to check and adjust the CCD and image processing functions. Locate Pixel Mapping in the camera's Mode Menu and select OK to activate it. Once Pixel Mapping is completed the Mode Menu displays. The bright dot should no longer appear in your downloaded images.

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1 Answer

Small bright dot


Pixel Mapping is a feature of the camera to check and adjust the CCD and image processing functions. Press the OK/MENU button and then press the right arrow button to enter the Mode Menu. Press the down arrow button until the SETUP tab is highlighted. Press the right arrow button and then the down arrow button until PIXEL MAPPING is highlighted. Press the right arrow key, which will highlight START. Press the OK/MENU. The back of the camera will display an indicator bar with the word BUSY. Once Pixel Mapping is completed the Mode Menu displays. Press the OK/MENU button to resume normal picture taking. The bright dot should no longer appear in your downloaded images.

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1 Answer

Small bright dot


Pixel Mapping is a feature of the camera to check and adjust the CCD and image processing functions. Pixel Mapping is a feature of the camera to check and adjust the CCD and image processing functions. Locate Pixel Mapping in the camera's menu and select OK to activate it. Once Pixel Mapping is completed the Menu displays. The bright dot should no longer appear in your downloaded images.

Aug 31, 2005 | Olympus D-545 Zoom Digital Camera

1 Answer

Small bright dot


Pixel Mapping is a feature of the camera to check and adjust the CCD and image processing functions. Locate Pixel Mapping in the camera's menu and select OK to activate it. Once Pixel Mapping is completed the Menu displays. The bright dot should no longer appear in your downloaded images.

Aug 31, 2005 | Olympus Camedia D-435 Digital Camera

1 Answer

Small bright dot


Pixel Mapping is a feature of the camera to check and adjust the CCD and image processing functions. Locate Pixel Mapping in the camera's menu and select OK to activate it. Once Pixel Mapping is completed the Menu displays. The bright dot should no longer appear in your downloaded images.

Aug 31, 2005 | Olympus Camedia D-425 / C-170 Digital...

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