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08-24-2017, 02:33 PM   #16

Join Date: Dec 2016
Posts: 1,428
P-TTL uses a pre-flash flash before the shutter fires, so the camera's flash meter can take a reading and reputably adjust flash output more accurately. Only a fraction of a second is involved. If red-eye reduction is also selected, perhaps yet another fraction. This is the science behind P-TTL vs.TTL flash. Some say it is definitely better, while others say the older TTL is faster-operating and just as accurate. Just how much shutter lag P-TTL entails between one camera model and another has not been tested to my knowledge.

08-29-2017, 04:04 PM   #17

Join Date: Mar 2010
Location: Manila, Philippines
Posts: 1,221
The Metz are good but slow to recycle and not good for events. Better go off with Kung Pao (Young No's). If you want/need
P-TTL get the latest version. But if you really want to learn flash photography aka strobist, get a manual flash.

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