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06/11/2005 10:11:17 AM · #1 |
| I am a new user of d70s. After one week now, I see two spot in upper left corner of every picture. What can be the problem? Help me pls. |
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06/11/2005 10:13:45 AM · #2 |
Probably have some dust on the sensor or maybe the lens. Should be able to blow it off pretty easily.
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06/11/2005 10:27:13 AM · #3 |
If the spots appear more well-difined at small apertures (e.g. f/11 to f/22) than they do at large aperture, e.g. f/4, then it's sensor dust. Dust in or on a lens will almost never show up in a photo as a recognizable spot, it's too far out of focus.
Lookhere for a method of sensor cleaning that's preferred by a large number of DSLR owners. Your manual tells you how to set up the camera for cleaning the sensor, and it's really less than a 5 minute procedure, withthe proper tools.
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06/11/2005 10:41:34 AM · #4 |
Or just lock the mirror up, turn the camera upside-down and use a bulb blower (not compressed air) and blow the dust off without touching the sensor.
If that doesn't work, do what kirbic said to clean the sensor, or take it to your local shop to have it cleaned.
Message edited by author 2005-06-11 10:41:55.
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06/11/2005 12:10:25 PM · #5 |
Thanks for helping. I will try this process to day. But little bit scared that, is it dust or manufacturing defect? Have any Nikon d70 or D70s user faced same kind of problem earlier?
Rudra.
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06/11/2005 02:07:31 PM · #6 |
I'd guess every digital slr owner has or will have dust on their sensor at some point, with the possible exception of those owning an olympus dslr (they have some kind of vibration that supposedly takes care of dust). It's not a defect, just an annoyance.
A bulb blower should take care of it, but I'd recommend checking for dust before any major shoot -- a good way to do this is set the aperture to the lens minimum, set a long shutter speed to vastly overexpose your shot (or just shoot something white) and zoom in on the resultant photo to look for dust. Just lock open the mirror, hold the camera with the lens mount facing down, use the blower brush and repeat if necessary. |
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06/11/2005 03:45:43 PM · #7 |
Please remember one very important thing: When preparing to use a bulb to blow out your sensor dust, always blow the bulb itself out multiple times before pointing at your sensor! If there is any dust in the the bulb (or worse, some type of powder that was used in the manufacturing process) then you will expel it into the air, instead of on your sensor.
Don't even consider compressed air. It has particulates that will adhere to your sensor, forcing you to send it away for cleaning....
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06/11/2005 07:39:25 PM · #8 |
Originally posted by Arcanist:
Don't even consider compressed air. It has particulates that will adhere to your sensor, forcing you to send it away for cleaning.... |
Or worse, the compressed liquid will expel onto the sensor and leave a residue.
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