Noisy images with D300 & D300s?
I posted this question in another Nature forum site, and thought I'd post it here as well to cast a "wider net", ...to fish in a "larger" pool of knowledge so to speak!! So,.. here is my problem;
I have a question about the CMOS sensors in these cameras and the supposed "Exceptionally Low Noise" results for the D300 & D300s.
Early this spring I rented a D300, and I just purchased a D300s. Both cameras at ISO 400 are FAR noisier than the images taken with my D70. This is while initially viewing them in Lightroom 2.1 & 2.5 and at any level of magnification, (not just while pixel peeping @ 100%)
Even at ISO 200 these cameras seem to result in much noisier images than my other digital camera.
I shot both cameras with the in camera menus set to Adobe RGB, 14bit, no compression. No noise reduction.
The images of the fox kits I took this spring with the D300, required a Lot, and I do mean A Lot, of work to remove excessive noise in the OOF, colors in the background. Some shots of a weasel I took with this same D300, at ISO 800, are pretty much unusable due to the excessive noise. I assumed at the time, that being a "rented" camera, the trouble may have been with it!! But,...
...Yesterday I took several hundred macro shots of a flower with the new D300s, and these are extremely noisy as well!!
I thought, and have read in all the various reviews that these cameras and their "New" sensors and processing engine give "superb" low noise response. So I'm wondering,.. what Gives?????
Am I missing something?? Does obtaining those "claimed" low noise results require always leaving the camera on one of its "low noise", or some other setting that I'm unaware of?
TIA for any help you can give!
Craig
1 Attachment(s)
...taking a shot at posting samples!!!
Ok,.. Here goes!! I don't know for sure if posting more than one sample image here violates the forums rules.
If it does, I humbly apologize and will not feel "violated" ;) if the moderator needs to remove them! :D ;)
I opened these ".nef" files in @ 8bits Photoshop CS3. NO, exposure, color, noise or any other image adjustments made. Turned camera RAW's sharpening to Zero before opening! (...default is set @ 25%)
I expanded the window and viewed the image enlarged to 100%, (the entire full frame of the image was not viewable in this window) I then took a crop @ 1024 "Pixels" along the long side from whatever was showing in the window and saved that as the .jpg I'm posting here! (...if there is a flaw in my method, someone will have to explain an alternative to me,.. use small words,.. I'm not that bright!!!) :D ;)
The first 2 images posted are as close to a side by side comparison of the D70 & D300s as I could manage. They are of the same type of flower taken in the same garden. the only difference in the way they were processed was, the D300s image had to be exported as a .tiff before I could open it in CS3. Other than that,.. the processing parameters I mentioned above apply to both.
The first was shot with the D70, second with the D300s. To my eye, the seconds noise is far more pronounced. It's bigger, clumpier, etc.
1 Attachment(s)
...here's the second image
...ok, couldn't put them both in the last message, but here's the sample image from the D300s!
The OOF greens are where I find the worst of the noise!!