The TTL dedicated Konica Minolta 5400HS flash provides accurate focus and exposure information to click improved quality pictures. With 138 (50 mm Position), 177 (105 mm) Guide No, this Konica Minolta TTL flash indicates precise exposure at a given distance (for manual mode). The bounce head of this Konica Minolta camera flash softens the harsh light of a strobe, by distributing the light in different directions. For added convenience, this Konica Minolta TTL flash comes with a swivel head that allows you to rotate the flash from point-to-point. Click bright, illuminated pictures of farther objects with the Auto Power 24-105 zoom head of this Konica Minolta camera flash. The 11 Sec recycle time of the shoe mount Konica Minolta 5400HS flash ensures continuous operations.