D70 - Spot on every picture

[christian_anderson]

Hi,

 

I purchased a D70 in May, and have been having a problem with it ever

since. Every single picture shows up with a spot in the top right

corner, and one in the bottom left corner (cant see it in my included

picture because the castle is there, but its there).

 

I've looked at the lens, mirror, etc and dont see any spots at all,

but without fail on every single picture I take there is that blob...

 

Any idea as to what the problem is?<div></div>

[armando_roldan]

YOU got dust on the sensor.

[grant_.]

ya dust, do a google on ccd dust and how to clean it...

[beepy]

<a href="http://www.photo.net/equipment/digital/sensorcleaning/">You are on your

own with this problem.</a> Good luck. If warnings in articles about damaging your

sensor worry you - learn (1) to like spots on pictures, (2) become very fast at retouching.

[david_h._hartman]

<em>"Any idea as to what the problem is?" --Christian

Anderson<br>

</em><br>

Dust on the low pass filter. If you'd read your manual you would

at least have a start.<br>

<br>

By turning the front cover you should see this...</p>

 

<blockquote>

<p><strong>CAUTION: Foreign Matter on the Low-Pass Filter</strong><br>

Nikon takes every possible precaution to pre vent foreign

matter from coming into con tact with the low-pass filter

during production and ship ping. The D70, how ever, is

designed to be used with interchangeable lenses, and foreign

matter may enter the camera when lenses are removed or

exchanged. Once inside the camera, this foreign matter may

adhere to the low-pass filter, where it may appear in

photographs taken under certain conditions. To prevent

foreign matter from entering the camera, do not exchange

lenses in dusty environments. To protect the camera when no

lens is in place, be sure to replace the body cap provided

with the camera, being careful to first remove all dust and

other foreign matter that may be adhering to the body cap.</p>

</blockquote>

 

<p>The next paragraph points you to pages 194-195.<br>

<br>

Page 194 does not mention the <strong>"</strong><strong><u>AC

adapter</u></strong><strong>"</strong> but at the very top

of page 195 the manual reads</p>

 

<blockquote>

<p>Turn the camera off. The mirror will return to the down

position and the shutter curtain will close. Replace the lens

or body cap <strong><u>and disconnect the AC adapter</u></strong><strong>.</strong></p>

</blockquote>

 

<p>A camera repairman friend tells me a lot of people damage their

shutters while attempting to clean the low pass filter when

running on battery power. If the battery power drops the shutter

will close and if a cleaning tool is in the way the shutter may

be damaged. This type of damage is not covered under warranty. <br>

<br>

The manual further notes...</p>

 

<blockquote>

<p><em>Cleaning the Low-Pass Filter</em><br>

The low-pass filter is extremely delicate and easily damaged.

Nikon recommends that filter be cleaned only by Nikon-authorized

service personnel. Should you choose to clean the filter

yourself, follow the steps below.</p>

</blockquote>

 

<p>You have purchased a camera that requires you to read the

manual. Sit down and read it cover to cover. Its only 208

pages long. I dont own the camera but I have read quite a

bit of the manual in its Adobe PDF form. Im guessing, and I

think its a very good guess, that this is your first

digital SLR type camera with interchangeable lenses (DSLR) so

this is all new. Please read the manual.<br>

<br>

Im not trying to be mean here. I hope you will read the

warnings in the manual and avoid unnecessarily damaging your

camera. That can easily be done if you try to clean the camera

yourself and do it incorrectly.<br>

<br>

Best,<br>

<br>

Dave Hartman.

[Mary Doo]

<p>

To minimize the probability of having dust stuck to the CCD, be sure to turn

your camera off when you swap lenses.  Have your lens ready, point your

camera downward, and stay away from the wind if you can.

 

<p>

Here are a few links with instructions on how to clean the CCD.  I

don't have the need to clean my D70 yet, but I bet the day will come when I

need to do so!

 

<p>

<a title="http://www.pbase.com/image/15473243" href="http://www.pbase.com/image/15473243">

http://www.pbase.com/image/15473243</a>

<p>

<a title="http://www.luminous-landscape.com/essays/sensor-cleaning.shtml" href="http://www.luminous-landscape.com/essays/sensor-cleaning.shtml">

http://www.luminous-landscape.com/essays/sensor-cleaning.shtml</a>

 

 

<p>

<a title="http://www.nikondigital.org/articles/ccd_cleaning.htm" href="http://www.nikondigital.org/articles/ccd_cleaning.htm">

http://www.nikondigital.org/articles/ccd_cleaning.htm</a>

[r_quan]

Nikon Capture 4 software has a way of digitally subtracting the dust. You take a blank picture and the software uses this image to remove it from your photos. I have yet to use it. Anyone have experience?

[daniel hayduk]

Just a FYI:

<br><br>

Sensor Cleaning - All right, everyone agrees that dirty sensors are a pain, but everyone doesn't agree on right and wrong ways of cleaning them. Fine. Just don't believe the popular urban myth that blowing off the sensor while keeping the mirror up and shutter open with Bulb makes things worse. There's a popular story going around that doing this will actually attract dust to the sensor, since the sensor is being charged (you're making an exposure in Bulb, right?). When asked about that, one of the camera company's engineers laughed, saying you'd have to charge the sensor for about a week to build up enough charge to attract dust. End of that rumor, okay?

 

<br>

-http://www.sportsshooter.com/news/1215

<br><br>

Use a blower (w/out the bristles attached) to see if it is loose dust. If it is still there, use one of the many ways of swabbing your sensor.

<Br><br>

 

/daniel

[david_debalko1]

Capture 4 only takes out the dust with photographs shot with the D2H.

I have done it-it works well. Before every shoot I take one dust off photo of a white out of focus wall. Any focused dusy particles are then taken out of all the following photos.

[beepy]

Wow - very cool on the D2H function.

[brandonhamilton]

The sensor does not have dust on it, the thin piece of glass that protects the sensor has dust on it. It is actually pretty tough. (not saying that you shouldn't be 100% gentle). I take a photograph on blub with my shutter release cable, and lock it open. Simply use one of those hand held brushes that seconds as a tiny air blower to clean the sensor. If that doesn't work, you can gently swab it with a sensor cleaning tool. (kind of like cleaning lens glass).