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Re: Cleaning the inside lens
To access the inner optics on these compact digital cameras the lens must be disassembled from the inside out. Usually the camera casing has to be removed, boards and connections moved out of the way, and the lens assembly actually removed from the camera. At that point the lens can be taken apart and the inner optics accessed.
In other words, yes, this is a job for a professional. It is also probably not worth the cost just for a couple specs of dust.
These lenses are not sealed. This is why the dust gets in there to start with. If you get a can of compressed air and carefully blow into the gaps between the lens parts in different directions somtimes you can get enough air through to blow off the inner lenses. This does not often work though.
Advance Camera Repair
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Unless you have a lens collimator and other gear needed to reassemble the lens, don't even think about taking it apart yourself. If gentle shaking and tapping doesn't dislodge it, take the lens to a reputable camera shop and have a trained professional clean it.
dont worry about dust too much unless it actually affects your image sensor.check it by pointing to a white wall or sky with f put to it maximum like 32/22 , focus and take pictures.. if its problem with the lens then it will make prominent dark speckles on the image.. but if you get dark speckles even at lower f - stops like 1.4/3.5/5.6 then its dust in the sensor.
dont try cleaning your sensor yourself as you may spoil it and finally have to refer a service center of the brand .
Cleaning the lens from the inside is not possible from a practical point of view. However, if you don't care that your camera won't work after you've taken it apart but you just want to see what's inside, then go ahead. If you see dust inside the lens and this is what is concerning you, please know that all lenses have dust inside...it can't be totally eliminated. In 99.999% of cases, the dust doesn't show up on the actual pictures.
The spots can be in the inside of the lens settings to the CCD/imager.
If the cleaning of the lens is done well it can be a speck of dust logged in to the screen and having it on the image.
A careful cleaning in a dust proof set up is required.
This usually means your camera is not communicating with the lens properly. Inside the body of the camera - directly above the opening for the lens mount - are 7 square / rectangular pads. These pads are the electrical contact points, that when mated to the corresponding pins of an automatic Nikon (or compatible) lens, provides the signals to set / confirm f-stop, focus, etc.
Since this is occurring on several lenses, unless you're failing to
install the lenses fully into the body, the issue probably lies with the
camera body itself. There may be an issue with dust, dirt or oxidation on these contacts - or a problem inside the camera - that is interfering with the those signals. You can wipe these contacts with an alcohol prep pad in an attempt to dislodge any dust and dirt. Clean any lenses used on the camera as well - as dust and dirt on the camera contacts means it's probably been transferred to the lenses, too. Oxidation is a bit trickier to tackle - because the camera is wide open to collecting anything that drops into it. If cleaning with an alcohol prep doesn't solve the problem, I'd contact Nikon support for their suggestions or to arrange for repair.
Unscrew the entire lens assembly from the body. The inner lens cannot get debris inside it but the outside of it and the inside of the protector lens can. It's a good idea to do this cleaning in your bathroom with the shower on hot but not visibly steamy as this will cut the airborne dust by 90%.
Don't. Unless there are some really big specks of dirt inside the lens then they will have no effect at all on picture taking. To prevent the problem getting worse always store your lens with it's front and rear caps on and inside a lens bag. Also make sure that your camera bag is clean and isn't shedding fibres from the inner linings.
Dismantling your lens to clean it is really a job best left to a professional who will then additionally check and clean/lubricate the moving parts inside the lens.
If you have a SLR camera you can take your lense off and clean it.. I do not reccoment canned air because if you do not use it the right way liquid will come out. At best buy they have cleaning kits, and in their kit they have a little brush that you can squeeze regular air and brush off anything on the lense or around the lense, If you have a SLR camera you might have a built in cleaning option... SLR means Single Lense Reflex and this means your lense can come off/interchangable..
This problem has plagued digital slr users for years. Unfortunately adding extension rings will change the focal length of whatever lens is used (could be a plus, but most likely not). Best thing is to change lenses in a clean environment, keep all your lenses clean and capped when not in use. Also when changing lenses it may help to keep the camera inverted with the body opening pointing downward. If stuff gets inside (which it will its only a matter of time) take it to a shop for a sensor cleaning (typical $40-50) or read about cleaning tools here http://www.photosol.com/