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 Post subject: D7000 bright spots issue
PostPosted: Sat Sep 10, 2011 9:54 pm 
Hello, I just bought my first DSLR, a Nikon D7000 and I'm pretty happy with it.
Tonight I went for some low light shooting, and after i took several long exposure shots i noticed some bright spots on the upper zone of the picture.

Image

This pic was taken with a nikkor 35mm F1.8 G with the following settings in M mode:
f/2.0
Iso: 200
Shutter: 5 sec
Long Shutter Noise Reduction: ON

What could that be? Reflections, dust on the sensor? Bad sensor?


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 Post subject:
PostPosted: Sat Sep 10, 2011 10:28 pm 
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Joined: Tue Jan 06, 2009 9:22 pm
Posts: 1315
Location: Speyer (Germany)
Do you use a UV filter? If you do so take it off before shooting "this kind of images". :wink:

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 Post subject:
PostPosted: Sat Sep 10, 2011 10:42 pm 
no, I didn't use any filter. I was thinking maybe the sensor was too hot, cause I was shooting several long exposures.
Is it possible?


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 Post subject:
PostPosted: Sun Sep 11, 2011 12:31 am 
It is probably noise caused by the long exposures. Your camera should have a long exposure noise reduction facility somewhere in the menus. try turning it on and playing about with the various settings.
Alternatively Photoshop has a noise reduction slider but it is not too successful, it may help though.


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 Post subject:
PostPosted: Sun Sep 11, 2011 1:33 am 
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Location: west coast of Norway
i would say it looks like lens flare.

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 Post subject:
PostPosted: Sun Sep 11, 2011 3:13 am 
Definitely lens flare from those bright street lights


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 Post subject:
PostPosted: Sun Sep 11, 2011 3:38 am 
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Joined: Tue Jul 27, 2010 8:57 am
Posts: 1551
Location: Winterpeg, Manisnowba, Canada
It does look like lens flare, I had the same problems with my D7000 and 35 f/1.8 tonight while photographing at a light show. If it bothers you, you could always use a lens hood, and if that doesn't help, you you could always remove them is post processing.

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Gear: 7 Nikon Nikkor AI-S and AF-S lenses, SB-700 flash, Nikon D7000, Nikon FM, variety of accessories

"There are no rules for good photographs, there are only good photographs."
- Ansel Adams


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 Post subject:
PostPosted: Sun Sep 11, 2011 6:02 am 
Dave16 wrote:
It is probably noise caused by the long exposures. Your camera should have a long exposure noise reduction facility somewhere in the menus. try turning it on and playing about with the various settings.

It was on

EvanK wrote:
It does look like lens flare, I had the same problems with my D7000 and 35 f/1.8 tonight while photographing at a light show. If it bothers you, you could always use a lens hood, and if that doesn't help, you you could always remove them is post processing.


It doesn't bother me at all, I just want to make sure that there isn't something wrong with my equipment


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 Post subject:
PostPosted: Sun Sep 11, 2011 6:13 am 
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Joined: Thu Oct 08, 2009 11:24 am
Posts: 1824
Nothing wrong with the equipment - it's definitely lens flare.

I have to ask though - why f2???? :shock:


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 Post subject:
PostPosted: Sun Sep 11, 2011 6:35 am 
I'm still learning how to take properly exposed pictures :).
I bought the D7000 yesterday and previously I've only used P&S with nearly no manual controls available.


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 Post subject:
PostPosted: Sun Sep 11, 2011 6:41 am 
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Posts: 1824
If you're on a tripod and shooting scenery like that with most of the frame at a distance (i.e. near infinity as far as focussing is concerned) I'd try stopping down to f4-f8 with the 35mm. You'll get better sharpness and contrast (obviously longer shutter times as well, which may become a mitigating factor if you get up to and beyond 30 seconds as a shutter speed and don't have a remote shutter release)


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 Post subject:
PostPosted: Sun Sep 11, 2011 7:17 am 
The problem is that I have a really crappy tripod that is far from being stable. I used self timer in mirror lock mode and still got blurry pictures with the nikkor 18-105.
So i got frustrated and mounted the 35mm to see if I could get some decent shot with a quicker aperture.
I did manage to get few acceptable shots like this at F8 though, with the 18-105mm.


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 Post subject:
PostPosted: Sun Sep 11, 2011 7:37 am 
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Buy cheap, buy twice, as the saying goes for low budget tripods!


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 Post subject:
PostPosted: Sun Sep 11, 2011 8:56 am 
True, a new one is probably on top of my shopping list


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 Post subject:
PostPosted: Sun Sep 11, 2011 1:50 pm 
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Joined: Tue Jan 06, 2009 9:22 pm
Posts: 1315
Location: Speyer (Germany)
That's the one I chose some months ago and I'm very happy with it:
http://www.amazon.it/Velbon-Sherpa-600- ... 907&sr=8-1

Maybe I should write a review someday... :roll:

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