User:Odosuiadan/Nikon i-TTL

Nikon i-TTL

 * Not to confuse with Nikon CLS

i-TTL is an initialism that stands for intelligent-Through The Lens metering. It is the eveloped light metering system on new Nikon cameras. If used in combination with a i-ttl capable flash, or the build in flash, the camara triggers the a brief preflash, then the returned light from this preflash, is used to determine an appropriate power setting for the flash in the given situation.