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This project proved to be a highly interesting exploration of some key properties of imaging systems. Although it was not exhaustive -- indeed, it is best considered as a "good start" to answering the questions posed at the beginning of this report -- it did expose some interesting issues and highlight for the author exactly how difficult it can be to capture reliable data from digital cameras.
Key observations:
- The Digital Rebel's spectral response displays a greater degree of overlap between the three pixel types than the D70, which may translate to differences in the range of colors the two cameras can render, but more careful study is required to validate this observation.
- The D70's kit lens does indeed offer better resolution than its counterpart with the Rebel. As explained previously, the comparison of the two lenses in terms of chromatic aberration is inconclusive at this stage, due to the out-of-focus images captured with the D70.
- Given these difficulties, it becomes key that accurate focus is critical to get the best images out of the camera. An interesting future study would be to compare the accuracy of the autofocus functionalities of these two cameras under different conditions; it is possible that important distinctions would emerge.
The most interesting additional work that could be done to expand this study would be a detailed noise characterization of the two cameras' sensors. At the very least, such an experiment would add to the already vigorous debate: CCD or CMOS?
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