Sigma VIEW FINDER VF-11 This optical viewfinder mounts on the camera's hot shoe. It allows framing of the image without using the LCD monitor. 

Sigma External View Finder VF-21 

Sigma Li-Ion Battery BP-41 This rechargeable BP-41 battery is compatible with DP1 Merrill and DP2 Merrill. 

Sigma Li-ion Battery BP-31 

                                                                                         

Sigma BC-41 Battery Charger 

This is used to provide a constant electricity supply when shooting in the studio, or taking indoor shots. It is also recommended for use when... 

The CR-21 Cable Release is an alternative to the RS-31 Remote Controller offering a wired connection to the camera. This reduces the risk of camera... 

Remote control allows the photographer to take self-portraits or get into group shots. Used in conjunction with the Mirror Lock-Up function, it can... 

Sigma Close-up Lens AML-1 When this lens is attached to the optional Hood Adapter HA-11, it enables close-up photography with a focusing distance... 

Sigma APO TELE CONVERTER 1.4x EX DG - CANON This is a dedicated APO teleconverter that can be mounted between select lenses and the camera body to... 

Sigma APO TELE CONVERTER 1.4x EX DG - Nikon This is a dedicated APO teleconverter that can be mounted between select lenses and the camera body to...