Question about Nikon D80 Digital Camera with 18-135mm Lens

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Hello I have hot pixels on my matrix- what I'll suppose do with that?

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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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Need to resize pictures

The size is going to be based off of clarity per pixel, the higher the MP the more pixels in turn the larger (but more clear) the picture.The best way to keep the clarity would be to resize on your computer, if you have windows, open the picture(s) with PaintStart Menu -> Programs -> Accessories -> Paint
Then after you've opened the picture, do the followingWindows XP -> click "Image" then "Stretch/Skew"Vista/Windows7 -> Click "Resize"Make sure you keep aspect ratio percentages locked or you'll come out looking like a circus image.

Jan 25, 2012 | Canon Powershot SX110 IS Digital Camera...

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Recently I found one balck spot on my picture, I dont know whay the black spot is coming. I am having a Nikkon D90 18-105 lens.

The black spot can be from one or two sources. The first, is a called a stuck or hot pixel. Your camera's sensor has 12.9 million pixels (12.3 million are used for the image). Many times, a hot or stuck pixel is a bright color - red, yellow, green, etc. It can be any color however. Dark or black pixels can also be called dead pixels as they look like they're "off." Regardless of which your camera suffers, it will not respond to light projected on the sensor by the lens. You'll have to have manually edit the pixel in each image, or return to Nikon for sensor replacement. Nikon used to perform a mapping out of the pixel, but it seems that they don't do this any longer. A sensor replacement can cost in the hundreds of dollars.

The second source, is dust on the sensor. A pixel(s) blocked by dust will show up in each picture, but will appear to be more in focus in some images than others - depending on the aperture value of the camera when the exposure was made. A stuck pixel usually has a very definite edge on all images regardless of aperture setting. A simple, careful wet cleaning of the sensor with a product designed specifically for the job can solve this problem pretty quickly.

Here's a video for wet sensor cleaning from Youtube There are others here too. I hope this was helpful & good luck!

Jun 06, 2011 | Nikon D90 Digital Camera with 18-105mm...

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Photos have a red dot in the center. Please assist in identifying a solution.

If it's just one pixel that's red, that's a common problem (sometimes called a "hot pixel") which can be addressed with the software that comes with the camera.  If it's a group of pixels or a bar or line, then there is likely some major defect on the image sensor itself.  If it's under warranty, you may want to contact Nikon support to see if they will do a warranty repair for you:
They will probably not do a repair if you are dealing with a hot pixel.

Mar 05, 2011 | Nikon D90 Digital Camera with 18-105mm...

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My olympus sp800uz lcd display square image only the lcd is not full how can i solve this

I suppose that you mean that the image you see is in 4:3 ratio. That is quite normal, because the default settings are 4:3. However, if you want widescreen (16:9 full LCD) images, just change the Image Size setting in the menu to 16:9 L (4288x2416 pixels) or 16:9 S (1920x1080 pixels). See the user manual page 30.

Oct 15, 2010 | Olympus SP800UZ Digital Camera

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Extremely long time writing to CF card

IIRC these cameras support a noise reduction feature through a custom function. The camera will take a second exposure with the shutter closed (i.e. against something pure black) to see which pixels in the camera are "hot", and then will use that information to remove that hot pixel noise from the original image. "hot" pixels depend on temperature and exposure length so the camera would need to do this on every shot.

Mar 05, 2008 | Canon Rebel XT / EOS 350D Digital Camera

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Red line

I think the problem is in matrix. Try pixel remaping. Usualy you need make remaping every 1 year. At the botom menu goto "Pixel Remaping" and press.

Feb 13, 2008 | Olympus EVOLT E-500 Digital Camera

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How do I setup the camera to save pics above 180 dpi resolution?

Select image>image size, make sure that the 'resample image' box is unticked and change the resolution to 300 dpi. This will automatically change the image size.

Sep 14, 2005 | Canon PowerShot SD200 / IXUS 30 Digital...

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"Stuck" Pixel

It could be the dust on the sensor. Read the manual and try to clean the sensor to see what happens

Sep 12, 2005 | Fuji FinePix S2 Pro Digital Camera

1 Answer

What are defect pixels?

Ocassionally images from digital cameras will have "defect" pixels. These pixels may appear in the final photograph as bright white, green or red spots that are out of place when compared to the rest of the image. Sometimes people call these spots "hot" or "dead" pixels. Notice the green defect pixel near the center of this image. Usually these pixels, and other types of "digital noise" appear in the darker or underexposed parts of images; additionally, images taken at longer exposure times are much more likely to have this issue. Many Nikon cameras have a "noise reduction" or "NR" process that fixes these problem areas. When NR is activated and image exposure times drop below 1/4 of a second the NR automatically processes the images as they are saved. This Noise Reduction feature is sometimes called "Night Portrait" or "Night Landscape" Scene Modes. If these spots are seen on images photographed under normal conditions (bright light with exposure times shorter than 1/4 second) then the camera may need to be sent in to a Nikon Service Center for repair.

Aug 29, 2005 | Nikon Coolpix 5700 Digital Camera

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