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Telephoto lenses and flash

Discussion in 'Canon Conflab' started by colin fosker, Aug 21, 2018.

  1. colin fosker

    colin fosker Active Member

    Will ettl and off camera flash for insects work in dark dense vegetation, combined with the 400 end of the 100/400 as opposed to a dedicated macro and flash?
  2. PeteRob

    PeteRob Well-Known Member

    Yes, flash lighting is just a way of providing light, the focal length of the lens doesn't matter. BUT the illumination is determined by the flash to subject distance. Using a telephoto means you need to use off-camera flash both to make sure the lighting is on the subject and to avoid lens-shadow because with flash on/near to the camera the lens will get in the way. Lighting anything hidden in dense vegetation will always be a challenge.

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