Macro flash unit with adjustable and removable twin straight flash heads; separate controller unit attaches to camera's hot shoe
72 (feet) / 22 (m), at ISO 100 (with both tubes firing at full power)
Modeling Flash: One-second burst at 70Hz in E-TTL or Manual flash modes, showing ratios* With C.Fn 4-1 (on MT-24EX), uniform one-second burst at 70Hz with any EOS body by pressing Controller Unit's test button
Flash Control System
Flash +/- exposure compensation, Flash Exposure Bracketing, FE Lock, FP sync, and Ratio Control of left:right (A:B) flash tubes over a 6-stop range (8:1 ~ 1:8 lighting ratios), and Wireless E-TTL with off-camera 550EX and/or 420EX Slave Units
Exposure Control Modes
Variable from full (1/1) ~ 1/64 power; Ratio Control of left:right (A:B) flash tubes from 1/1 to 1/64 power is possible
Nine Custom Functions on MT-24EX, in addition to any in camera); set on MT-24EX Controller LCD panel.
4 AA batteries in controller unit (Alkaline, Lithium, rechargeable Ni-Cd or Ni-MH AAs are OK)
External Power Source
Compact Battery Pack E or E2, and Transistor Pack E
You need it
If you know macro, you know you need serious light. All the people on the Internet that have a problem with the 65 mp-e (boohoo no AF) and this flash (ermahgerd its so harsh) don't know macro. It's a totally different beast. You need this if you're serious about macro. If you wanna take pictures that make the viewer wish they could shrink to the size of a grain of rice to ride on a bee like Falcor from the Neverending Story, get it and a serious macro setup.
February 16, 2013
Big let down
Costly paper weight. Canon did not publish good data as to what lenses it could be used with.
September 20, 2010
Great flash to use for macro work, but I wish that adaptor rings could be made available to use with other lensed especially now that the new macro lens that was just announced.
November 12, 2009
Worth it's weight in gold
Very good product, Would be nice if it would not need a step-down adapter for the 180mm lens. Would also be nice if that adapter would be included either with the lens or the flash unit.
October 24, 2009