A photographer may have personal and economic reasons to use a particular medium...
Then... IMHO a photographer may have a technical reason to use film if he knows and wants to exploit a capacity film has and digital lacks in some extend.
This there is my list of major technical reasons that may lead a photographer to use film:
> Extended highlight latitude, for natural glare depiction.
> Each film (specially for color) has its particular spectral sensitivity curve. A face catured with Velvia will not look like if it was captured with Portra, even if you spend a month with Photoshop. Digital has fixed dyes on pixels.
> Very big formats made easy
> BW grain structure (MF and SF)
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