Results 1 to 8 of 8

Thread: New Canon EF 70-200mm f/4 L USM Lens - But what's with the CRAZY flashing from my camera?

Hybrid View

Previous Post Previous Post   Next Post Next Post
  1. #1
    Senior Member
    Join Date
    Jan 2009
    Posts
    460

    Re: New Canon EF 70-200mm f/4 L USM Lens - But what's with the CRAZY flashing from my camera?



    Sean,


    Does the flash fire repeated bursts? If so, what you're describing sounds alot like the built in flash's AF assist. That goes right in line with your lens not being able to focus also.


    Was it a dark area you were trying to focus on?


    -Rodger

  2. #2
    Administrator Sean Setters's Avatar
    Join Date
    Jan 2009
    Location
    Savannah, GA
    Posts
    3,368

    Re: New Canon EF 70-200mm f/4 L USM Lens - But what's with the CRAZY flashing from my camera?



    I'd have to agree with Roger on this. It sounds like the Auto Focas assist flash (where the flash illuminates the subject so that the camera can obtain proper focus). I'd suggest trying to repeat your portrait session in a better lit area and see if the focus problem persists (the AF assist flash my still fire, but you should be able to obtain focus thereby shortening the AF assist burst).

  3. #3
    Senior Member
    Join Date
    Jan 2009
    Posts
    109

    Re: New Canon EF 70-200mm f/4 L USM Lens - But what's with the CRAZY flashing from my camera?



    I don't know if your camera has a DOF preview button, but mine fires a nasty modeling light by default (disabled now) so it may be worth a look.


    -S

  4. #4

    Re: New Canon EF 70-200mm f/4 L USM Lens - But what's with the CRAZY flashing from my camera?



    Quote Originally Posted by Shea Design


    I don't know if your camera has a DOF preview button, but mine fires a nasty modeling light by default (disabled now) so it may be worth a look.


    -S



    I was going to say this, if it looks like a flicker thats like 60Hz or something like that then I would say thats its totally DOF preview. Fun to blind people with, otherwise a little overkill.

Posting Permissions

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