Features: The Led Macro Flash is the perfect choice for the photographer who requires shadow free illumination. It is designed for close up, macro, medical, scientific and forensic photography as the flash light source is positioned directly between the camera lens and subject providing an even illumination.  More approach natural light use high quality led light.  There are seven levels luminance.  It is meets the higher photography needs.  Left and right flash function make the object appeared third dimension.  Fit for macro shot, scientific research, medical and personal hobbies of photography.  Mount the flash product on the lenses.  Attached are equipped with 52mm, 55mm, 58mm,62mm, 67mm, 72mm 77mm, seven different adapter ring.  Press the annular light lock and place on the lens with adapter ring, loosen lock button, when annular light have locked in the adapter ring already.  Four working mode: Light mode, Flash mode, L mode(Left half of the annular flash), R mode(right half of the annular flash).  Specifications:  Flash GN: 15;  Effective Flash Scope: 5CM- 1.5M;  Quantity of LED: 32pcs;  Color Temperature: 5500K;  Exposure time: 1/100 seconds;  Battery: 4 AA batteries (not included);  Net Weight: 265g;  Compatible With: For Nikon: D7000, D5000, D5100, D3100, D3000, D3 series, D700, D2 series, D300 series, D200, D90, D80s D70 series, D60, D50, D40 series, F6. For Nikon COOLPIX8800, COOLPIX8400, COOLPIX P5000, COOLPIX. P5100,COOLPIX P6000. FUJI: S5 Pro. For Canon: for EOS 5D, 5D Mark II, 7D, 1D/1Ds series, for EOS 10D, 20D, 30D, 40D, 50D, 60D, for EOS 300D(Rebel Digital) 350D(Rebel XT) 400D(Rebel XTi) , for EOS 450D(Rebel XSi) 500D(Rebel T1i) 550D(Rebel T2i), for EOS 600D(Rebel T3i) , for EOS 1100D(Rebel T3), 1000D(Rebel XS), for Canon G12 G11 G10 G9 G7 G6 G5 G3 G2. Note: The optimal focal length is 50mm (35mm film format), black corner may occur when you use wide angle lens Please see user manual carefully before use. Package Included: 1 x LED Ring Flash;  8 x Adapter Ring Kit (52mm-77mm);  1 x User Manual;