A-TTL ...... E-TTL???

[LittleMan]

I'm looking into geting a Canon 540EZ A-TTL Flash for my Canon EOS1N.
What does A-TTL mean? and how is it different from the E-TTL and the TTL?

What will I lose if I go with the A-TTL instead of the E-TTL? It's a LOT cheaper so I'm wondering if it's a really important thing.

I don't know much about flashes or how to use a flash so please tell me what you know!

Thanks!
-Chris

 

[Xmetal]

A-TTL is 'Average-Through The Lens'

E-TTL is 'Evaluate-Through The Lens'

I'm guessing that the reason behind the higher price on E-TTL is because it would be smarter than A-TTL.

Someone else can elaborate further.

 

[LittleMan]

A-TTL is 'Average-Through The Lens'

E-TTL is 'Evaluate-Through The Lens'

I'm guessing that the reason behind the higher price on E-TTL is because it would be smarter than A-TTL.

Someone else can elaborate further.

hmmm... sometimes smarter isn't better.

 

[LittleMan]

bump, any other info about this?
I would really like to know. thanks.

 

[kfoster]

From what I have read the EOS 1n is not compatable with E-TTL flash. Just like older Nikon film cameras are not compatable with i-TTL. The EOS1n is a A-TTL camera so you need a flash compatable with this system. I didnt find anything saying that the newer canon flashes that are E-TTL compatable are also compatable with the A-TTL.

k

 

[LittleMan]

From what I have read the EOS 1n is not compatable with E-TTL flash. Just like older Nikon film cameras are not compatable with i-TTL. The EOS1n is a A-TTL camera so you need a flash compatable with this system. I didnt find anything saying that the newer canon flashes that are E-TTL compatable are also compatable with the A-TTL.

k

Well, I am using it on my Canon EOS1N so it's an A-TTL camera. :thumbup:

Thanks for the info! I'm going to get the Magic Lantern Guide to my flash when I get it. That should help me out some.

Thanks! :thumbup:

 

[jstuedle]

I am surprised Canon flashes are not backward compatible. Nikon has always done a pretty good job doing this. The latest DX-TTL flashes work very well on all of my older systems, film and digital.