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White dots with my new D700???

pperreault001

Montreal, CA
24 posts

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pperreault001 Silver Member Nikonian since 05th Nov 2008
Mon 17-Jan-11 04:29 AM | edited Mon 17-Jan-11 04:43 AM by pperreault001

(Edited to add lense used)

Hi Guys,

I have a bizarre thing going on with my new D700 and a 50mm/1.8D lense.

Here's 2 pics of the sky taken 3 seconds apart in manual mode with the same settings.

ISO: 200
A: F16
S: 1/160

First pic is clean, second pic have a lot of white dots in the upper section...

Is it what people call hot or struck pixel? If it's dust, it would have been on the 2 pictures? Never seen this with my D70s, so I'm confused...

So, what do you think it is?

Still amaze by the D700 but if mine have a problem I'll have it exchange?

Thanks!

Pierre
Montréal, Qc, Canada

Visit my Nikonians gallery.



Click on image to view larger version



Click on image to view larger version


Attachment#1 (jpg file)
Attachment#2 (jpg file)

Len Shepherd

Yorkshire, UK
12722 posts

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#1. "RE: White dots with my new D700???" | In response to Reply # 0

Len Shepherd Gold Member Nikonian since 09th Mar 2003
Mon 17-Jan-11 05:56 AM

It is not dust (which is black or dark gray) - and it is not hot pixels - as these are never white.
The framing of the 2 pictures is slightly different and there is strong side lighting on the first picture - maybe you picked up some reflections, possibly off dust on a front filter.

Photography is a bit like archery. A technically better camera, lens or arrow may not hit the target as often as it could if the photographer or archer does not practice enough.

Len Shepherd

Travjohn

Boone, NC, US
642 posts

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#2. "RE: White dots with my new D700???" | In response to Reply # 0

Travjohn Gold Member Nikonian since 06th Nov 2005
Mon 17-Jan-11 11:31 AM

Have you considered UFO's?
"One should photograph objects not only for what they are but for what else they are." -- Minor White

pperreault001

Montreal, CA
24 posts

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#3. "RE: White dots with my new D700???" | In response to Reply # 2

pperreault001 Silver Member Nikonian since 05th Nov 2008
Mon 17-Jan-11 02:48 PM

Hi,

I'll check dust again but I have clean up the lense filter earlier that day... I'll redo a test this afternoon at the same time to have the same lightning conditions... I will also try different lenses...

And if it's only dust, then I'm sorry for losing your time with this...

But if it's UFO, then I'll sell my pics to CNN and with the money I'll buy a couple of lenses!!!

Thanks,

Pierre
Montréal, Qc, Canada

Visit my Nikonians gallery.

agitater

Toronto, CA
4551 posts

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#4. "RE: White dots with my new D700???" | In response to Reply # 0

agitater Gold Member Donor Ribbon awarded for his very generous support to the Fundraising Campaign 2014 Nikonian since 18th Jan 2007
Mon 17-Jan-11 07:45 PM

Looks exactly like a daylight sky shot in which the brightest stars are visible. There's some very minor sensor dust in the bottom-centre, but no hot pixels at all.

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Howard Carson

hcms

PT
1 posts

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#5. "RE: White dots with my new D700???" | In response to Reply # 4

hcms Registered since 21st Jan 2011
Fri 21-Jan-11 06:17 PM

Hello,

I just saw another topic from someone who got white spots on the image cleaned them and they reappered after a while, they were saying it is excess of oil from the mirror mechanism

FrenchTwist

US
59 posts

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#6. "RE: White dots with my new D700???" | In response to Reply # 5

FrenchTwist Registered since 04th Apr 2010
Sat 22-Jan-11 04:16 PM

I am getting large looking wqter blotches on mine and even though the camera was less than a year old sent it in to have the sensor cleaned- it seemed to clear up and not even 2 months later it is back- like water splotches all over any light images- i am sick about it- i will find a pic and post it too!

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G