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I would be happy with binned 2x2 7.52 micron pixels so long as that was the pixel size during capture time and not at readout time. If the signal from 4 pixels is combined after each pixel is read as Peter has stated then from what I understand the pixels are 3.76 microns when data is being captured.
This is my problem with software binning in relation to pixel size and calculating the image scale for my setup. Do you use the 3.76 micron pixel size when determining your image scale or the 2x2 7.52 micron?
It probably seems like its not important but for moving targets like asteroids and comets I think you need know. For example if you are making astrometric measurements or want to avoid trailing.
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