Conclusion
Based on the results of the colorimetric analysis, the methods used are effective and can be used to evaluate the effect the varnish will have on the painting with respect to color change.
The methods used for evaluating the SFR of the varnish needs to be improved. An analysis using this method may still be viable, but changes need to be made to the process and weaknesses need to be found. Further work should include determining the proper concentration of the varnish, the proper thickness, the height of the camera, etc. Once these parameters are found, an analysis using these methods may be used.
Finally, further work should also involve a record of the effect that cleaning and reapplication of the varnish multiple times may have on the painting and the spatial frequency response. These data could also prove to be useful to individuals who routinely use varnishes, such as painters and conservators.