Product DescriptionThis wireless flash has two individually adjustable reflectors so you can alter the light distribution over your subject and control highlights. Each reflector can move through 20°.The wireless TTL triggering makes the 15 MS-1 effectively a slave flash and requires a primary flash which is wireless TTL compatible. Most built-in flashes on today's digital SLRs will be compatible. In addition, flash output can be manually controlled (through |