No other flash camera offers the versatility and advanced features of the Promaster MacroLume. Dual flash tubes for the Promaster flash for Canon are each individually controlled. Indeed, the dual flash tubes can fire either simultaneously or separately and each has a built-in variable diffuser. Mounting the Promaster MacroLume to almost any lens is simple when utilizing Cokin �P� Series adapter rings. Fully automatic operation is also available with the TTL flash as a result of the Promaster 5000 series flash modules. Macrophotography is made easy with the Promaster flash for Canon, because the detachable flash head and adjustable mounting assembly will aid in perfectly capturing the light during close-up photography and very small subjects. The focus-assist lamp and modeling lamp on the Promaster MacroLume have either full power setting or can match the output of the flash proportionally for crisp, clean picture-taking. Dual flash tubes on the right and left offer variable illumination on either side of the TTL flash. Finally, enjoy perfectly lit pictures and lightning fast clicks with this fully automated Promaster flash.