A modular camera, comprising: a camera body comprising an image sensor configured to capture video image data and a first module interface, the first module interface comprising a mating portion and an electrical coupling portion; and a plurality of modules (128, 126, 120, 124) each releasably and functionally engageable with the camera body and with each of the other of the plurality of modules, each of the modules comprising: a first interface (136, 142), comprising a mating portion and an electrical coupling portion, the mating portion of the first interface releasably mechanically matable with the mating portion of the first module interface and the electrical coupling portion of the first interface electrically couplable with the electrical coupling portion of the first module interface so as to communicate signals between the camera body and the module; a second interface (140, 144), comprising a mating portion and an electrical coupling portion, the mating portion of the second interface releasably mechanically matable with the mating portion of the first interface of each of the other of the plurality of modules and the electrical coupling portion of the second interface configured to be electrically couplable with the electrical coupling portion of the first interface of each of the other of the plurality of modules; and a bus segment for communicating signals between the first interface and the second interface wherein at least one of the plurality of modules comprises an in/out module, the in/out module comprising a synchronization signal connection and at least one of an audio signal connection; a dual link HD-SDI connection; and a video monitoring connection. a camera body comprising an image sensor configured to capture video image data and a first module interface, the first module interface comprising a mating portion and an electrical coupling portion; and a plurality of modules (128, 126, 120, 124) each releasably and functionally engageable with the camera body and with each of the other of the plurality of modules, each of the modules comprising: a first interface (136, 142), comprising a mating portion and an electrical coupling portion, the mating portion of the first interface releasably mechanically matable with the mating portion of the first module interface and the electrical coupling portion of the first interface electrically couplable with the electrical coupling portion of the first module interface so as to communicate signals between the camera body and the module; a second interface (140, 144), comprising a mating portion and an electrical coupling portion, the mating portion of the second interface releasably mechanically matable with the mating portion of the first interface of each of the other of the plurality of modules and the electrical coupling portion of the second interface configured to be electrically couplable with the electrical coupling portion of the first interface of each of the other of the plurality of modules; and a bus segment for communicating signals between the first interface and the second interface wherein at least one of the plurality of modules comprises an in/out module, the in/out module comprising a synchronization signal connection and at least one of an audio signal connection; a dual link HD-SDI connection; and a video monitoring connection. a first interface (136, 142), comprising a mating portion and an electrical coupling portion, the mating portion of the first interface releasably mechanically matable with the mating portion of the first module interface and the electrical coupling portion of the first interface electrically couplable with the electrical coupling portion of the first module interface so as to communicate signals between the camera body and the module; a second interface (140, 144), comprising a mating portion and an electrical coupling portion, the mating portion of the second interface releasably mechanically matable with the mating portion of the first interface of each of the other of the plurality of modules and the electrical coupling portion of the second interface configured to be electrically couplable with the electrical coupling portion of the first interface of each of the other of the plurality of modules; and a bus segment for communicating signals between the first interface and the second interface wherein at least one of the plurality of modules comprises an in/out module, the in/out module comprising a synchronization signal connection and at least one of an audio signal connection; a dual link HD-SDI connection; and a video monitoring connection.