Taking staff photos now and long term solution

[Frimley111R]

This has been a challenge for me for as long as I can remember. If we get a photographer in s/he can take most photos (not everyone will be in) but then if we have 2-3 new people every month or so its not economic to get them back in. If we use the office camera they all look a bit inconsistent and amateurish.

What do you do in your company to solve this?