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Martin Baadsgaard

Mon ochromatic noise on D70 at ISO 200

Hey there.
My D70 seams to make some kind of noise when taking pictures, even at ISO 200, with lots of daytime light, at 1/500th second...
It's first visible when I zoom in on my picture in the camera raw plugin in photoshop.
The noise is not color noise, like the kind you get at very high sensitivity, and in dark areas on your pictures. it is just a noise of lighter and darker areas. the noise is very fine grained. the color difference is betwin each pixel, not like big areas. (like normal noise, but still not with any "color")

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August 14, 2005

Karma Wilson

Is your exposure dead on?

Karma

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August 14, 2005

Martin Baadsgaard

What do you mean?

Here is the info:

1/500sec.
F/5.6
ISO 200

The lense is a Tamron SP 90mm, but the problem also occurs with my Nikkor DX 18-70mm ED, and Nikkor DX 70-300mm (the standard lense kit).

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August 14, 2005

Terry R. Hatfield

Post A Sample Image Martin, It Would Be Much Easier To Identify Your Problem...

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August 14, 2005

Martin Baadsgaard

Here are a few shots, shot with different lenses, and with different apertures and shutter speeds.
The only thing they have in common is the ISO 200 setting.
It's just a few cut-outs to reduce image size...

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August 14, 2005

Martin Baadsgaard


	Noise stuff Mixed aperture, and shutter speeds. Shows some noise which I'm concerned about, because it occurs at ISO 200. the saturation was slightly altered on one of them at RAW->JPEG conversion, and the exposure has been changed with maximum 0,5EV steps on them. Martin Baadsgaard

It was first with the picture you see a part of at the top right corner that the problem started to bug me, so it is not such a big problem in the other pictures.
Seams to be mainly a problem in green areas, which is quite a problem, since I love taking nature shots.
The lower left has been JPEG compressed, so doesn't show it too well. you have to see the picture in full size.
I might just be picky, and some of the examples might just be ISO noise. But I'm easily concerned, after I had an old 3rd part flash mounted on my flash, and was told that it could overload the internal circuit, and cause harm to the image quality.

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August 14, 2005

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