Taking low resolution images with D800
This may sound like a newbie question but I couldn't figure out an answer so I decided to post here.
Say I take my pictures in RAW. If I use full resolution then the images will be 36MP. But I can also dial down the image sizes (like L, M and S image sizes in my D7000). So if I dial down the image sizes then obviously the resulting RAW files wont be of 36MP, but rather of lower resolution.
I don't understand the relationship of reducing the image size with the sensor coverage. If I reduce the image size, does the camera crop the image by using partial sensor (like in DX mode on an FX camera) or still use the full sensor size but not use its full pixel density?
How does it actually work?
Nikonian in New Jersey
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#1. "RE: Taking low resolution images with D800" | In response to Reply # 0gpoole Nikonian since 14th Feb 2004Thu 12-Jul-12 03:44 PM
The only way to dial down the image size of NEF/RAW files is to change the crop from full frame to . You can reduce the size of the NEF file, but not the image size, by using 12 instead of 14 bits or changing the NEF compression from "none" to "lossless" to virtual loss less compressed.
The L, M, and S image sizes only applies to JPEGs. It's the same on your D700. M and S downsize the full sensor area.
DX mode samples only the DX portion of the sensor, resulting in a 15 Mpixel image from the central portion of the sensor. (5:4 and 1.2x also sample a reduced area of the sensor.) BTW, L, M, S also applies to crop mode images. M and S are created by downsizing the cropped sensor area.
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