
How to Clean Your Digital Camera Sensor
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Digital camera sensor cleaning, if you will excuse the pun, is a “sensitive”
matter. It requires patience and understanding of the delicate nature of the sensor
itself. Some self-cleaning camera models like some of those made my Canon do a
good job of “removing dust” or at least keeping dust from ruining your
pictures.
- Again, being extremely
careful is the best policy.
- You want to use your
cameras mirror-lockup function.
- Consult your owners
manual for "mirror lockup". This function, as the name implies,
will lock the mirror up out of the way when you press the shutter release
button on your camera and leave it there until the shutter is pressed
again.
- NOTE: You may choose
to place your camera on "bulb" setting. This allows the
cameras mirror to stay up until you choose to close it. Please consult
your cameras manual to learn how to set a bulb exposure.
- You need to use a lint
free wipe, often referred to as a pec pad and a fast drying cleaning
fluid. (For good resources for obtaining these items, please visit here.
- Pec pads are 99.99
percent lint free pads that are non-abrasive and will not damage or
scratch your sensor.
- The cleaning fluids
are generally methanol based, flammable and dangerous so you have to be
careful. Some places will not even ship these items in the mail due to
regulations about mailing "hazardous materials". There are some
alternatives to the methanol based products but not as good. Also, if you
are going to be traveling by plane with your cleaning fluid, you may have
a problem unless it is in a certified safe/non-toxic packaging. In all
cases use these products in a well-ventilated area, do not breath the
fumes and do not get them on your skin, clothes or any furniture.
- At this stage you are also going to want to be in a dust-free environment. As dust free as possible. You do not need to be in a room with a white suit on like the people who work on computer chips but at the other end of the spectrum, do not go outside while it is windy or to your coffee table while the kids are having a pillow fight in the room. Bottom line, the best place is probably somewhere like a dining room table while no one else is there and the house is relatively clean and quiet. There should also be adequate light. You will be able to see the dust on the sensor if you reflect an overhead light off its shiny surface.
-
- You should obtain
either a wooden Popsicle stick or a flexible plastic fork knife, spoon,
whatever. It does not matter which, because you will be using the handle
end. You will also need some masking tape.
1. You are going to place the pec pad in your hand and lay the handle into your hand on top of it so that the very end of the handle (or Popsicle stick) rests about in the middle of the pad.
2. You then want to fold the left side of the pad over the handle, the top down over so that it rests on the top of the left half you just folded and then bring the right side over to the left and make it tight. (This sounds confusing so there are pictures available at the site listed above.)
3. Once you have done this you should tape the pec pad near the base (closer to the top of the utensils "business end". You want the tape to be far away from the camera as scotch tape is abrasive and you do not want it to touch the sensor.
- You should obtain
either a wooden Popsicle stick or a flexible plastic fork knife, spoon,
whatever. It does not matter which, because you will be using the handle
end. You will also need some masking tape.
-
- You want to end up
with a flat end of pec pad with a relatively spongy feeling. It has to
be soft because you are going to sweep this across your sensor VERY
LIGHTLY. You want it flat because you are going to sweep across the
sensor from one side to the next in about 3 to 4 passes, moving over
about the width of the pad with each pass, in order to sweep the whole
surface. Of course, prior to doing this you should add a couple of drops
of the cleaning fluid to the flat tip of the instrument you just made.
- This should go
without saying but NEVER pour the liquid directly into the camera. NEVER
push hard on the sensor. Just lightly sweep across it. You are sweeping
dust after all and not grinding off nuggets of dirt. VERY, VERY light
pressure.
- Now you are done! Dispose
of the pec pad (safely. i.e., no kids or animals can get to it) and make
sure the rest of them are sealed in the zip lock bag they probably came
in (if not, put them in one that is new so there will be no dust in it).
Seal up the fluid bottle and put it all away in a safe place.
- To test to see if your sensor is free of dust, you can put on a lens (that you are also sure is free of dust) go outside on a bright day, open your camera to its maximum f-stop and shoot a few pictures of the sky. When you go to review them at high resolution on your computer, you should see a nice picture with no dust.
- You want to end up
with a flat end of pec pad with a relatively spongy feeling. It has to
be soft because you are going to sweep this across your sensor VERY
LIGHTLY. You want it flat because you are going to sweep across the
sensor from one side to the next in about 3 to 4 passes, moving over
about the width of the pad with each pass, in order to sweep the whole
surface. Of course, prior to doing this you should add a couple of drops
of the cleaning fluid to the flat tip of the instrument you just made.
Tips
- Digital camera sensor
cleaning, if you will excuse the pun, is a "sensitive" matter.
It requires patience and understanding of the delicate nature of the sensor
itself. Some self-cleaning camera models like some of those made my Canon
do a good job of "removing dust" or at least keeping dust from
ruining your pictures.
- Unfortunately they do more of
a job of "hiding" dust than they do removing it. An expensive
investment in a camera like the 5D (Canon EOS) can really hit the
pocketbook. It would seem like a shame not to take good care of it like
the high precision instrument that it is.
- Digital camera cleaning of
parts, like the lens and body are relatively easy compared to the delicate
task of cleaning camera sensors. This is why extreme care should be taken
at anytime you remove the lens from your camera body. A damaged sensor
would be a costly repair considering some of the middle end models of
d-SLR come in at around $2,000 to $3000. Even if you only purchased a
"pro-sumer" model like a Canon Rebel XTi or a Nikon D40 for
around $800 or $900. It is probably a sizable investment for you so the
best advice is just to be careful.
- It is highly recommended that
you avoid the use of canned compressed air, especially if you are
inexperienced. There are chemicals involved that could damage the sensor
if expelled into the camera. In the past, with film SLRs it was perfectly
acceptable to use the compressed air as the internal nature of the camera
was not as delicate. While there are propellant free compressed products
available, they are best avoided. Since you spent so much money on your
camera, you should treat it as you would any expensive investment. While
blowing air into the camera housing is quick and easy, it is not always
the best solution and of course, can be dangerous. Just avoid compressed
air all together.
- If you must use a product
like this due to time constraints, etc. You should go with a CO2 and
nitrogen cartridge based systems that are moisture free, but can be very
expensive.
- There are many products on
the market that I recommend and that I myself use. One can obtain digital
camera cleaning products anywhere that sells cameras or optical equipment.
However, one must be prudent since we are dealing with a large investment
of money and do not want to risk damaging our camera just to save a few
dollars on cleaning supplies. There are camera dealers that I myself have
been to that recommend products that I would never use on my camera. It is
not their fault. Generally they want to be helpful but are most often
working for a large corporation and are hourly employees that, while
well-meaning, do not have the experience to dictate how you should handle
your $3000 camera.
- While these will help you out
of a situation where you get dust in your sensor and do not have the
ability to clean it right then and there, these will work fine. The
methods used by the camera are things like vibrating the sensor to
"kick" off dust, having a static charge around the sensor to
attract dust away and in severe cases, the camera will electronically
remove dust from the image itself. This works with a sophisticated
algorithm inside the electronic brain of the camera that "detects"
dust and uses neighboring pixels to fill in those areas. However, before
every major shoot that is important to me and of course, my client, I use
the following techniques.
- So, how should you go about
cleaning digital cameras sensors?
- Again, to see video showing
the relatively easy (yet hard to explain without pictures) process of
adding the pec pads to the handle, see http://www.slrdigitalphotographysite.com/camera-sensor-cleaning
- also includes sources for items related to Camera Sensor Cleaning.
- If after reading this you are
afraid of doing this yourself you can always take your camera to a dealer
or customer service center and have them do it. If your camera is new they
may do it for free, but they usually charge a fee.
Warnings
- Be careful with any chemical
based cleaning fluids. It is safer just to use the non-flammable ones
available but make sure they are for use on camera sensors. If you use the
methanol or hydrogen based fluids make sure to read the warning labels and
keep away from open flame and use in a well ventilated area.
- Do not touch the surface of
the sensor with the Popsicle stick or whatever you decide to use to wrap
the pec pad in. It is a good idea to do a practice run on something like
maybe the CCD screen at the back of the camera before working on the
sensor. You want to make sure that you are just lightly sweeping the
sensor with the flexible part of the pec pad and not touching it with
anything rigid. Practicing before hand allows you to get a feel for how
much pressure to use.
Related wikiHows
- How to Repair Lens
Problems on Your Digital Camera
- How to Get Good Camera Footage
- How to Buy Lenses for Your Digital
SLR
- How to Buy a Digital Camera
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