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06/23/2008 12:55:07 AM · #1 |
so i have heard a couple roumors regarding the amount of noise put out. i've heard nikon set at 400iso puts out far far less noise than canon set at 200iso. my xti puts out quite a bit of noise when i get to 400 but my friends nikon D80 seems to have next to no noise no matter the iso (within reason)
could someone set this roumor straight for me? |
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06/23/2008 02:36:43 AM · #2 |
According to dpreview the 400D and D80 have almost identical noise until ISO400 where the D80 takes a strong decline in noise, lower than ISO200 actually, while the 400D increases noise across the whole range. The D80 holds a noise equal to ISO100-200 until it reaches ISO1000 at which point it has as much noise as the 400D at 400ISO. So at 400 and above on average the D80 can have twice the ISO for the same noise level.
//www.dpreview.com/reviews/canoneos400d/page17.asp
Hope this helps!
Message edited by author 2008-06-23 02:36:55. |
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06/23/2008 04:57:55 AM · #3 |
Also keep in mind that noise and image detail are a balancing act.
It's not impossible for any camera camera to create low noise images but the method used to achieve it is in-camera smoothing.
The more image smoothing you do, the less noise you end up with. Conversely, less smoothing leads to more detailed images. Personally I prefer a hands off approach to in camera noise removal so that I can control amount NR in post.
bazz. |
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06/23/2008 05:04:11 AM · #4 |
Actually there is a bit more to it than that. Sensor size vs number of pixels, the sensor type CCD vs CMOS, sensor housing, and the processing circuits all can affect noise also.
As for smoothing, this too varies by the firmware used in different cameras. The same way a plug in like Noise Ninja can remove 90% of noise while only removing 10% of detail while a simple Blur filter will remove 90% of the noise and 90% of the detail. :) |
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06/23/2008 05:54:59 AM · #5 |
| A further variable worth mentioning is whether or not you shoot RAW or JPG. i.e. is the camera performing any noise reduction processing for you. I noticed a marked increase in noise in low-light conditions when I switched to shooting in RAW - which is why I now own Noise Ninja. |
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06/24/2008 12:28:55 AM · #6 |
| thanks for clearing that up guys! i understand it far more now. ill try to apply it to my shots |
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