A camera head comprising: (a) housing having a front and back orientation and defining a cavity, the housing being cylindrical and having an axis, the housing having a rear portion for interengaging with a support system; (b) a first wall annularly configured in the housing; (c) a front portion in threaded engagement with the housing such that rotating the front portion causes it to move axially with respect to the housing, the front portion having a front face at least a portion of which is transparent, the front portion comprising a second wall being cylindrical and extending backward from the front face to define a center cavity, the first and second walls cooperating to define an annular cavity; (d) at least one lens attached to the second wall and disposed in the center cavity; (e) one or more light emitting devices disposed in the annular cavity and operatively connected to the housing; and (f) at least one imaging device disposed in the cavity operatively connected to the housing and optically coupled to the lens; and wherein when the front portion is rotated relative to the housing, the lens moves with the front portion while the light emitting device remain stationary with respect to the housing.