Complex sentence: However, some photographers, including some advanced photographers and some older photographers who are accustomed to more traditional metering methods, may be uncomfortable with multi-zone metering, this tends to stem from a lack of clarity about "how" the camera reacts in certain situations.
Split into simpler sentences: However, some photographers, including some advanced photographers and some older photographers who are accustomed to more traditional metering methods, may be uncomfortable with multi-zone metering. This tends to stem from a lack of clarity about "how" the camera reacts in certain situations.