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

Discussion in 'Beyond the Basics' started by LittleMan, Nov 24, 2005.

  1. LittleMan

    LittleMan TPF Noob!

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    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
     
  2. Xmetal

    Xmetal TPF Noob!

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    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. :)
     
  3. LittleMan

    LittleMan TPF Noob!

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    hmmm... sometimes smarter isn't better.
     
  4. LittleMan

    LittleMan TPF Noob!

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

    kfoster TPF Noob!

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    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
     
  6. LittleMan

    LittleMan TPF Noob!

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    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. :D

    Thanks! :thumbup:
     
  7. jstuedle

    jstuedle No longer a newbie, moving up!

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    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.
     

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