A technical limitation of the study was also optimization
of the smartphone capture technique. It was found
that at a distance of less than 2.5–3 ft from the lightbox,
an oscillating dark-band artifact would appear across the
photo, obscuring the image, which limited the proximity
at which the photograph could be taken. Assessing the
technical components of smartphone capture of film
hanging on a lightbox would be helpful in future optimization
of this approach, especially given the need for
stable reproducibility worldwide. As with any imaging
modalities, smartphone capture certainly has additional
artifacts unique to the modality, which must be explored
further to ensure proper recognition if this modality is to
be implemented on a larger basis. Additionally, other
challenges in real-life applications must be recognized
such as the inability to control ambient light conditions
in many regions which smartphone capture may be
applied