Features:

• Fully dedicated with the latest Canon eTTL auto exposure system
• The perfect all-around flash for Canon 40D, 30D, 20D, 10D, 5D, 1D, 1Ds, Digital Rebel, XTi, T2, K2, or GII
• Bounce & swivel head can be tilted 90° upward. Also can be swiveled 180° to the left and 150° to the right
• LCD display - features an illuminated LCD panel
• Guide number 148' (45 m) at 85mm

Editor Reviews:

Product Description:
The Opteka EF-600 DG SL SUPER is designed to work with both Canon AF 35mm SLR and Digital SLR cameras, for advanced flash photography. It has a maximum guide number of 148 feet or 45 meter at 85mm focal length (ISO 100). The projection angle of the flashlight is set automatically to match the lens focal length ranging from 24mm wide-angle to 85mm medium-telephoto. It also incorporates a built-in diffuser that expands the angle of illumination down to that of a 15mm lens.For bounce flash it can be tilted 90° upwards. Also it can be swiveled 180° to the left and 150° to the right. It incorporates "modeling flash" mode to provide proper light distribution to check the shadow of the subject. The multi pulse flash features enable reduced power setting from 1/4 to 1/128 in 6 steps and the pulse frequency of the flash can be set from 1Hz to 199Hz. In addition, manual flash also can be set at 8 output power levels. The covering focal length of the flashlight can be seen on the LCD panel, and a flash ready signal can be seen in the viewfinder. The EF-600 DG SUPER also incorporates auto power off system.

Rating : - Do not get this Flash
I got this flash about 3 months ago. I probably used it about 100+ times and now it does not work. A lot of my pictures were under exposed, and some over-exposed. I thought it was my Canon Rebel XTI. So I did a fix subject, fix distance, fix focus length, fix lighting. I tested the built in flash and it give me no over-exposed pictures and no under-exposed pictures. The Opteka 600 over-exposed and under-exposed even worst. Then to top it all off; it stop working, it will not flash at all. There is no contact information on box or on the User Manual to for Tech Support or Service.

Do not buy this flash. I have not figure out my next move, but I am strength looking at Vivtar, Tamron, or Canon Flash for my next unit. I suggestiion you do the same.