YONGNUO YN24EX E-TTL Flash Speedlite 5600K with 2pcs Flash Heads and 4pcs Adapter Rings for Canon EOS Cameras Supports Master TTL Flash Supports Exposure Compensation, FEB, Rear-curtain sync, FE Lock, FE lock, Modeling Light, Canon camera menu accessible. Macro Flash Supports flash ratio, adn the flash tube A and B can be adjusted together or individually, which can creates shadow on the subject to make the photo with engraving effect. Large-size LCE Display Equipped with large-size LCD display, the flashing function can be checked and set more clearly and visually, which will be more convenient for use. LED AF Assist Light High brightness LED focus assist light to allow focus more easily. Equipped with PC Sync Interface YN24EX is equipped with standard PC synchronous interface which allows you convenient to use synchronous flash by using PC synchronous line. Support the lens of multiple filter size Supports the lens of the following filter size : 52mm、58mm、67mm、72mm. Sound prompt system When the sound prompt system is enabled, different sound modes will prompt different working conditions of the speedlite so as to allow you to focus on shooting process (Note: the sound can be turned off). Provided with the external power socket YN-24EX is provided with external power socket to meet your higher demand of recycling time and no longer missing the wonderful moments. Automatic settings saving YN-24EX can automatically save your current operating settings to convenient your next use. Compaible with : for Canon 1Dx, 1Ds series, 1D series, 5DIV, 5DIII, 5DII, 7DII 5D, 6D, 7D, 80D, 70D, 60D, 50D, 40D, 30D, 20D, 750D 700D, 650D/T4i, 600D/T3i, 550D/T2i, 500D/T1i, 450D/Xsi, 400D/Xti, 350D, 100D, 1100D, 1000D, 1200D, 1300D Provided with the external power socket YN-24EX is provided with external power socket to meet your higher demand of recycling time and no longer missing the wonderful moments. Automatic settings saving YN-24EX can automatically save your current operating settings to convenient your next use. Compaible with : for Canon 1Dx, 1Ds series, 1D series, 5DIV, 5DIII, 5DII, 7DII 5D, 6D, 7D, 80D, 70D, 60D, 50D, 40D, 30D, 20D, 750D 700D, 650D/T4i, 600D/T3i, 550D/T2i, 500D/T1i, 450D/Xsi, 400D/Xti, 350D, 100D, 1100D, 1000D, 1200D, 1300D Circuit Design Insulated Gate Bipolar Transistor (IGBT) Type Automatic macro flash for close-up photography Flash Ratio Control Two flash heads: 24/79, Single flash head: 26/85 (ISO 100 105mm ) Vertical Angle Upwards, downwards 90 degrees Horizontal Angle Inwards 60 degrees, outwards 30 degrees degree of the adapter ring Upwards 50 degrees, downwards 30 degrees Guide No. With the precision of 1/2 EV within the range of 8:1 - 1:1 - 1:8 Flash Mode TTL, M Lighting Times 200~2500 times Recycle Time Approx 3s Power Supply 4pcs AA alkaline batteries or AA Ni-MH batteries ( Not included) Color Temperature 5600k Flash Time 1/200s~1/20000s Flash Control 8 levels of output control (1/128~1/1), 22 levels of fine tuning External Interface Hot shoe, PC port and external charging port Two Flash heads light Hot shoe for Canon Battery excluded Package Including: 1 * YONGNUO YN24EX Macro Ring Flash 4 * Adapter Ring ( 52mm, 58mm, 67mm, 72mm ) 1 * Mount Ring 1 * Protecting Nylon Bag 1 * User Manual (English & Chinese)