This is a sensor cleaning issue. Our shop does it for $65, the cleaning kits you buy are about $75. If you try to clean yourself go ONE DIRECTION ONCE, OTHER DIRECTION ONCE. Then wait, test shoot the sky or something light colored, and redo if necess. Over cleaning will damage your sensor! Canon charges about $100 to do it, might be worth the money not to do it yourself.
Yes your sensor needs cleaning.i had the same prob and it was when taking sunset photos with wide 18-55mm lens you could see like ufo's in the sky he he.but of cause it was the dust shame.all the best mark.
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NOISY PICTURES One of the major
difference between a consumer digital camera and a digital Single Lens
(DSLR) is that the former produces images with a lot of noise when
ISOs and long exposure times, and the latter is practically noise-free
(though high ISO performance varies depending on camera manufacturer
and model). Noise
is apparent by the presence of color speckles where there should be
example, instead of a blue sky, you notice faint pink, purple and
speckles amongst the otherwise blue sky. read AT http://www.photoxels.com/tutorial_noise.html
This is normal behavior when shooting in low light. Just like when someone is speaking softly into the phone, you may turn up the volume on your end. Any background noise, you can now hear more.
Similarly, when there is low light, the camera turns up the amplification on each pixel. Some pixels naturally have a bit more background noise than others, and these show up as bright spots. A higher ISO setting where the camera is more responsive to light is where this occurs.
At a high ISO, taking a picture of pure black shows up as a mottled grey with a few bright spots for pixels that have a lot of noise.
You can overcome this if you have a tripod - set the camera to manual and a use a lower ISO setting. Rotat the selection wheel to M for manual and then press the ISO (just above the function set) button to scroll through different ISO settings.
Photoshop and other programs have noise reduction tools and a tools to remove "hot" spots as well.
Hello - You will find this happens mostly in Automatic mode which needs a better spread of light.
The grey background is when another color has been highlighted/increased and the background get saturated out (usually the sky goes grey) or the clouds go white.
Try going into Scenic settings ..ie.. vivid , sunset , soft etc and keep that setting open while taking shots.
or -- Use a Neutral density filter where there are bright and dark spots in frame.
or - Use the aep button to increase a stop before taking a picture..
AND -- get into S or A or Manual mode .
I called Fuji Tech support UK and they admitted the S1000 cameras where 1 stop low on light in the fully auto mode, because it was easier to AD light afterwards in software,
Dark spots are usually the result of dust or dirt on the lens. If a simple soft bristle brush (1/8" wide paint brush is ideal) can't dislodge the debris, you should purchase a lens cleaning kit available from camera stores. They run about $10. These are great to removing these and other contaminants such as finger prints, smudges, etc. High end lenses have special optical coatings and the special cleaning fluid included won't leave a residue - or damage the coatings.
If the spots are bright or colored, (or dark after cleaning above) the electronic sensor inside the camera has a "hot" or "stuck" pixel. This problem is usually not worth fixing due to cost.
As is common in many compact digital cameras where the built-in flash is very close to the lens strange reflections can appear in images under certain conditions.
Particulate matter in the air in front of the lens (between the camera and subject) such as water vapor (as in a cloudy day), smoke, dust or other items can reflect light directly into the lens causing neutral colored white/grey semi-transparent spots to appear in the image.
In extreme examples there may be many of these spots in an image or there may be only one per image. Also, since these spots are completely random they will move or disappear from image to image. For example, if two images are shot consecutively with the same camera settings one image may have spots while the other is clean.
To avoid these spots:
When possible, avoid photographing in smoky, dust, or cloudy areas
Do not use the camera's flash in locations such as above
Use an external Speedlight flash if a flash is needed
Review images on the camera and re-shoot if spots are visible
Cleaning the lens will not have an effect on these spots, as the particles that cause this are not on the lens itself.