Abstract: A soft box is provided. The soft box includes a collapsible frame that supports a fabric shell, a backplate, a support spindle, support rods extending from the back plate and operatively attached to the support spindle. The soft box may include a deflector plate that is removably attached to the support spindle by magnetic force. The soft box may also include a locking knob pivotally attached to the back plate and configured to removably attach an adapter ring to the back plate and tilt radially outwardly relative to the back plate while remaining attached to the back plate to enable removal of the adapter ring. The soft box may also include a mount that is configured to attach to a light fixture that does not use an adapter ring to attach the light fixture to the soft box.