If I always shoot in RAW and process my images in Lightroom 4, do I need to use the long exposure noise reduction on my D7000 or can I can I get the same or better noise reduction results by turning off noise reduction on the camera and doing all my noise reduction in LR4.
I was doing some night shooting with a friend who had a D600 and he said he always leaves his camera noise reduction off because he thinks he gets better results in LR4. It also saves the extra time needed between exposures for noise reductiion in camera.
The way that the noise reduction in camera works is that, after you take the exposure - say, a thirty second exposure - it then closes the shutter and makes the same length of exposure, but without the shutter open. It then subtracts the white noise of the shutter closed exposure from the original exposure.
LR4 noise reduction is fundamentally different from the in-camera noise reduction.
>Hi John, > >You are confusing Long Exposure Noise Reduction with High ISO >Noise Reduction. >Long Exposure NR takes a second image with the shutter >closed. > >High ISO NR kicks in at ISO 2500 and higher. >Since you are shooting Raw, and not using Nikon NX2 software, >I don't think it matters. I don't think LR4 reads Hi ISO NR >from a Raw file.
I wasn't confusing them, the OP specified the long exposure NR.
There is a difference between High ISO noise reduction and Long Exposure noise reduction.
Long Exposure NR is only for exposures longer than 1 second (see page 228 in the manual)
It works by taking a dark frame exposure that is equal in length to your exposure. It then subtracts any noise created during the dark exposure from your image. This form of NR does affect the RAW data.
You should leave Long Exposure NR turned off during normal shooting as it can slow down the camera. Only use it when your exposures exceed 1 second.
If I understand you correctly, if I am doing 30 second exposures during night photography it would benefit me to leave the camera long exposure noise reduction on and still use LR4 for any further noise reduction when I am processing my images?