Pleasantly surprised of this LED ring, comes complete in box with accessories. Due to a relative power, the macro is his domain, the rings of large diameters useless beings could advantageously replaced by a cover, unfortunately not fournie.je can not see myself using it on my 70-200 f2.8 yet to 'proxy ease by cons with my 30mm mounted on a Sony Nex 7, or 105 on the Alpha 77, it's all good, short is his domain when the visor is so close to the subject that it hides in the light! Comprehensive functions: flash, limited to 1/100 sec. Or continuous light, left or right or complete, variable power. Only drawback, common to this kind of product a certain fragility of the shoe adapter while plastic. Please note this is the type of shoe-Minolta Sony, so no last generation, although an adapter can be inserted, which would weaken a little assembly! I would have preferred a smaller diameter top purchase anyway!
