Complex sentence: The articles are written by members of the photoSIG community, these can be very specific, talking about one piece of equipment (a review) or they can range over a variety of things to help improve one's final photograph.
Split into simpler sentences: The articles are written by members of the photoSIG community. These can be very specific, talking about one piece of equipment (e.g., a review) or they can range over a variety of things to help improve one's final photograph.