Question about Pentax Optio S4 Digital Camera

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Optio S4 Pixel problem

I got my S4 today and it has a wite spot on every picture in the same place. I guess that it is a dead pixel, or group of pixels on the sensor. Can I do anything about it? On my Olympus camera I can use a utility to map the bad pixel out. Can I do that with the Pentax?

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Re: Optio S4 Pixel problem

That is a stuck pixel that never changes - always full on - and causes a clump of adjacent pixels to do the same. Exchange it if you can.

Posted on Sep 08, 2005

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Tiny black spot lcd


Erika, Do you mean you have a black spot on the LCD of your camera?
We call that a dead pixel. Can be black and can be white. Most LCD's sooner or later have a one or more dead pixel(s). As long as they are not in the centre of the screen you won't notice them. Even dead pixels on the camera sensor can happen. These you won't see at all, because the software does calculate what that pixel would look like in that specific shot. And the software will place a correct colour on that spot.
Try to live with the dead pixel(s). you won't see them on the actual pictures. Not on the computer to tablet and not on a print.

Dec 30, 2013 | GE Digital Cameras

1 Answer

Samsung es30


If the spot is in all foto's and in a video, it is most likely not the lens. Could be a dead pixel (some pixels). But almost certain a spec of dust or othes debris that entered the camera.
Because this camera came with a fixed zoom lens, there is no sensor cleaning option. And I can't find a posibility to make a dust retentie picture.
To check if the spot is on the sensor, put the camera in manual, set aperatur to the greatest figure (smallest opening) an make a picture of a white object. If you see the spot, you were spot on. When the camera is new, this could be a reason, to go to your dealer and ask a new camera. Take the dust retentie picture with you.

Oct 31, 2013 | Digital Cameras

1 Answer

I have a Nikon coolpix 5700. Recently have taken a bunch of pictures that ended up having pink spots show up on the pictures. It does not matter what setting the camera is on or how the zoom is set it...


Your CCD sensor most likely has what is referred to as a "dead pixel" or "stuck pixel", which is a pixel in the sensor that is not functioning properly anymore. There is not much to do to get it fixed. If you have an image editing program such as photoshop, corel draw or gimp, it is very simple to clone or heal the pixel out.

Oct 11, 2013 | Nikon Coolpix 5700 Digital Camera

1 Answer

Spot on viewfinder and picture


Whoops! Clicked the wrong icon before. Here's my solution:

The spot is most likely a spec of dust that is on or in the cameras' lens or optical sensor (the sensor is the "film" in digital cameras). Dust is a problem for the SLR type cameras (the kind that have removable lenses) as the camera body is open when swapping lenses. Your camera does not have the ability to accept different lenses - so the chances of dust is minimized - but not impossible. When zooming, the lens extends and creates suction inside. When air is drawn in, a particle of dust was could have been brought in at the same time. Most of the time, dust will vary in appearance from a sharp, irregular shaped object to a fuzzy, rounder object - depending on whether the lens is zoomed in or zoomed out. A professional cleaning should be able clear this problem. Contact a camera shop for an estimate.

Other times, this is a much more sinister issue. The optical sensor has developed a problem. The optical sensor or simply "sensor", is a small rectangular semi-conductor that is sensitive to light. The size is often stated in "pixels". The are about 10 million pixels on a 10 megapixel camera's sensor. One of the sensor's has stopped responding to light focused on it by the lens. Depending on how it failed, this will appear either as a sharp, black dot in the same place of every picture if is failed "off" (this is called a dead pixel), or as a sharp colored dot in the same place of every picture if it failed "on" (this is called a hot pixel). Unfortunately, dead and hot pixels can not be fixed individually. The entire sensor must be replaced as a unit. This can be a costly repair depending on the camera make and model and sometimes it is better to buy new instead of investing money in an older camera. Again, consulting with a camera shop that does repairs or even the manufacturer in this case is in order for the best estimate of what repairs may cost. Good luck!

Jan 08, 2012 | Kodak EasyShare Z981 Digital Camera

1 Answer

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...

1 Answer

Where can I buy a new LCD 2,5" TFT, 232000 pixel


here you go just click on the smiley face link -------> :)

Feb 11, 2011 | Pentax Optio A30 Digital Camera

1 Answer

Black spot in pictures. I checked around and somebody said it might be that a pixel went bad in the camera and he said to check the photos on the computer. It was still there when i uploaded them to the...


Most likely dead pixel on the camera. If the camera is still under warranty, you may be able to return it to be fixed (some manufacturers will not repair one or two dead pixels, check their terms and conditions). If camera is out of warranty, then you will probably just need to live with it or consider using software like Adobe Photoshop to help you fix the dead pixel(s) if it is noticeable on good photos.

Jan 04, 2010 | Samsung S860 Digital Camera

1 Answer

Black spot on pictures, and lcd viewing


Hey cj17,
Since this spot is both on your lcd and your pictures the lcd is most likely not to blame. This spot is probably caused either by dirt on the lens or the sensor, or it could be caused by a dead pixels on the sensor. You can try cleaning the lens, and if this doesn't work you should have it looked at by an authorized service technician.

Sincerely,
Allan
Go Ahead. Use Us.

Apr 28, 2008 | Olympus Stylus 720 SW Digital Camera

1 Answer

Dead pixel or dust?


sir ,its not dead pixel .this is dust u contact any local repairer

Oct 12, 2007 | Panasonic Lumix DMC-FZ5 Digital Camera

1 Answer

DSC W1 dead pixel


If it has the remapping option, it doesn't say so in the manual. from what I understand, every camera comes already with "dead pixels" and its already remapped so that you won't easily notice it. with time, more pixels drop off and you need to remap it again. Now the thing is, the remapping just makes the dead pixel an average of its surounding pixels, and there are photo editing programs that do the same thing, have the remapping option. so basicaly what i'm saying is that if you're out of warranty dont be in a rush to get it fixed. cheers

Sep 15, 2005 | Sony Cyber-Shot DSC-W1 Digital Camera

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