Results 1 to 7 of 7

Thread: What is the difference between TTL and i-TTL?

  1. #1

    Default What is the difference between TTL and i-TTL?

    What is the difference between TTL and i-TTL?

    If I don't intend to use multiple flashes for creative lighting system I don't need i-TTL function?

  2. #2

    Default Re: What is the difference between TTL and i-TTL?

    i-TTL is the standard TTL mode for the newer Nikon DSLRs. Most Nikon DSLRs uses only i-TTL, with exception with the D2 series which are compatible with the older D-TTL.

    i-TTL is used to help the camera achieve correct flash exposure. It has nothing to do with multiple flashes.

    BC

  3. #3

    Default Re: What is the difference between TTL and i-TTL?

    Quote Originally Posted by KeefeSNAP View Post
    What is the difference between TTL and i-TTL?

    If I don't intend to use multiple flashes for creative lighting system I don't need i-TTL function?
    TTL uses a sensor at the bottom of the mirror box in film cameras to detect the amount of light from the flash hitting the film. For digital, because the sensor is rather dark coloured and glossy, the amount of light could not be scattered to where the sensor is supposed to be in film cameras, so a new system of detection has to be used instead. D-TTL and later i-TTL use the normal metering sensors in the prism to read a preflash before the actual shot is taken.

  4. #4
    Senior Member zac08's Avatar
    Join Date
    Feb 2005
    Location
    East
    Posts
    11,755

    Default Re: What is the difference between TTL and i-TTL?

    And how intelligent, trust me... it's good...

    I can shoot at night and still get spot on exposures...
    Michael Lim
    My Flickr Site

  5. #5

    Default Re: What is the difference between TTL and i-TTL?

    I am a newbie just got a D40.
    Is it ok for me to buy old obsolute Nikon Flash like SB28DX ...
    thanks for your advice

  6. #6

    Default Re: What is the difference between TTL and i-TTL?

    Quote Originally Posted by tigereye19 View Post
    I am a newbie just got a D40.
    Is it ok for me to buy old obsolute Nikon Flash like SB28DX ...
    thanks for your advice
    Since you're a newbie, buying older models flash will require some manual settings for some shooting modes. I suggest buy SB-600 or SB-800 which will suit you better.

  7. #7
    Senior Member
    Join Date
    Nov 2004
    Location
    East side
    Posts
    3,704

    Default Re: What is the difference between TTL and i-TTL?

    Apart from SB600/800, you can go for the SB400 too, compact and balanced on the D40/x.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •