Question about Nikon D200 Body Only Digital Camera

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Dust inside my d200

I have some dust in my sensor? If look at the viewfinder I see alot of dust and hair like particles.

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The view finder and focusing screen are separate from the CCD sensor. The mirror reflects the image to the view finder until you take a picture. Then the mirror goes up, the shutter opens to expose the CCD to capture the image.

If you have a lot of dust, you should look into a cleaning kit, or have it professionally cleaned. This will show up on your images as white and/or black specks.

Posted on Jun 30, 2008

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Posted on Jan 02, 2017

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Cleaning your Motherboard effectively


Motherboard cleaningWhy? Dust and especially particles of cigarette smoke can build up and corrode circuitry causing various problems such as computer lockups
Note: When inside the computer take the necessary ESD precautions and try to avoid unplugging any cables or other connections.
Procedure: Our recommendation when cleaning the motherboard from dust, dirt, or hair is to use compressed air. When using compressed air, hold it in the up-right position; otherwise, it is possible chemicals may come out of the container that could damage or corrode the Motherboard or other component within the computer. Also, ensure when using compressed air that you always blow the dust or dirt away from the motherboard, or out of the case.
Another good alternative to compressed air is to use a portable battery powered vacuum that can effectively remove the dust, dirt, and hair from the motherboard completely and prevent it from getting trapped within the case. However, do not use a standard electricity powered vacuum as it can cause a lot of static electricity that can damage the computer. When using the vacuum it is vital that you stay a couple inches away from the motherboard and all other components to help prevent contact as well as to help prevent anything from being sucked into the vacuum. Ensure that you do not remove any small components with the vacuum such as jumpers.
Tip: When cleaning the inside of the case also look at any fans and/or heat sinks. Dust, dirt, and hair collects around these components the most.

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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!

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Curser will not move


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1 Answer

I see some hair inside the lenss when i look thru the view finder


It's very unlikely to get hair inside the lense. You probably see the hair on the reflex mirror of your camera. Remove the lense, Check inside the camera body for any dirt, dust, hair etc. Take a blower-brush (you can get one from the nearest camera dealer) and gently blow-brush away any particles from the mirror and the cavity. DO NOT use any force and don't touch the curtain shutter as it can easily be damaged. Don't touch the insides of the camera with your fingers, since the grease from the fingertips attract dust. Replace the lense. The hair should be gone now.

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1 Answer

IN MY JUST PURCHASED UNIT I HAVE ENCOUNTERED WHAT APPEARS TO BE DUST OR PARTICLE SPECKS IN THE VIEWING SURFACE WHICH ARE MOT RELATED TO THE NEGATIVES OR SKIDES. I HAVE SCANNED APPROXIMATELU 900 SLIDES AND...


Most of these devices have photoelectric sensors build-in, which tells the unit whether there is too much paper dust on the sensors, When there is too much paper dust covering the sensor, the device will report to the User that there is too much paper dust on the sensor, and the device will not function properly, due to the build up of paper dust.

Get a can of compressed air and gently spray inside the device, to remove the build up of paper dust,

-a.

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Dust spots on images


this will give you the idea how to clean the lens and have lens cover which is available in market to protect it from dust
http://www.picturecorrect.com/photographytips/207/cleaning_camera_lens.htm

thank you

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1 Answer

Black particles on focusingscreen


If the specks are just on your viewfinder focussing screen, they won't be on your pics. If they're on both your pics and focussing screen, you need to find someone else to clean your camera. Cleaning either your CCD sensor or your screen yourself can leave scratches. Changing lenses often can suck dust into the inside if the body is dusty. Try another repair shop for thorough cleaning - it shouldn't cost more than $50.

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550 Problem: Dust collecting inside Viewfinder


I had hoped that a few people would check their cameras and posted replies before I contacted Pentax about my dust problem, but nobody has so far. But it's interesting that someone else posted a message this morning that he has some dust inside the lens of his 550. Anyway, this morning Pentax Canada told me that there should definitely be NO dust inside the viewfinder or the rest of the camera for that matter. Although the Viewfinder is "almost sealed" from the rest of the camera, it is not a total seal - which means to me that if dust can get into the viewfinder, it can get into the rest of the camera's interior - including the lens and imaging chip. They have asked me to bring my camera in so they can remove any dust particles that are inside. Basically, they told me that the only place I should see any dust is inside the lens cover, which is meant only as a protective covering rather than a seal from dust. Even then, they claim that any dust on the outer lens would only enter while the camera is being used. That one I don't buy, as the lens cover is very flimsy and can easily be accidentally spread open while the camera is turned off.

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