You have been wondering how does D300's ISO6400 performs? Wait no more, here it is! Below a photo taken with Nikon D300 with 17-55mm F2.8 lens.

Actual photo with exif in Nikon Capture Original photo resolution: 4288*2848

A quick look at the exif:
[Image]
Make = NIKON CORPORATION
Model = NIKON D300
Orientation = top/left
Software = Ver.0.25
Date Time = 2007-08-30 17:59:32
[Camera]
Exposure Time = 1/320"
F Number = F2.8
Exposure Program = Aperture priority


 

The focused area

Image above is 100% cropped of the photo's focus area. Details seems to be slightly washed out and wordings are not as sharp. This may be due to handshake but a further processing should solve this issue easily.

Image after post processing

The same image but USM and processed with Noise Ninja in Photoshop CS3. Wordings are clearer now. At ISO6400, this amount of noise is acceptable and until I get to hands on a D300, I would say that it is fairly usable. 

2. Nikon D300 100% cropped

3. Nikon D300 100% cropped

4. Nikon D300 100% cropped

Noise is visible at area that is not focused. F2.8 is used to capture this photo, handheld i assume. Color look a bit washed out once again.

5. Nikon D300 100% cropped

Resized view of the original photo

I hope that the above sample and cropped images serves as your current guide for D300 ISO6400 comparison with other camera model. Only full review in the future when the camera is available can accurately justify the ISO performance of Nikon D300 and also D3.

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