What is Canon E TTL E TTL II?

E-TTL mode, also known as E-TTL autoflash, is the mode where the camera uses information obtained through the lens (“TTL”) to calculate how much light the flash needs to emit for the appropriate brightness. The camera then automatically sets the flash output accordingly. This is known as a flash metering system.

What is 1st curtain vs 2nd curtain?

In a nutshell, 1st curtain sync will fire the flash at the beginning of the exposure; if the subject is moving you may end up with subject blur ahead of the subject. 2nd curtain fires the flash near the end of the exposure, resulting in blur behind the subject.

Which is better the canon 580EX or the 430EX?

While the 430EX is less powerful, it does not have the timed restriction of the 580EX II and does have the master/slave switch intact. The only other consideration is that the 580EX II can act as a wireless trigger which the 430EX cannot do. In the end I returned the 580EX II and purchased two 430EX speedlites and the ST-E2 wireless transmitter.

How do you do a second curtain synch?

With Second Curtain Synch (also sometimes called Slow Synch) the sequence goes like this: Press shutter button. Pre-flash fires so the camera can measure and adjust the intensity. Curtain A opens. Frame is open for some period of time (as determined by your shutter speed). Flash fires. Curtain B closes the frame and ends the exposure.

When did the canon 580EX 2 come out?

The 580EX II is a superb state-of-the art professional flash differing only in not having radio control from the $500 600EX II RT. The Canon 580EX II was Canon’s top professional flash from 2007 until it was replaced by the 600EX-RT in 2012.

What’s the difference between first and second curtain sync flash?

Your first (normal sequence) scenario DOES have a name – first (or front) curtain sync. Your second scenario is also called rear curtain sync but NOT slow sync. Slow sync flash is simply a technique of using flash and a long shutter speed, and can be used in conjunction with either front or rear curtain sync.