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Photography Question 

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Will Flash Work with Longer Telephoto Lens?


I use a Canon Eos 30 and an EX380 flash that synchronizes to 1/125. This is okay for my 28-105mm lens. What happens if I want to use my 300mm lens? Does this mean that all the pictures will be blurred if the camera is hand held or the subject moves? Thanks


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May 06, 2001

 

Jeff S. Kennedy
  Assuming the ambient light isn't too strong, the duration of the flash is enough to freeze any motion. When you use flash, the flash duration in essence becomes your shutter speed. The only time your sync speed becomes a factor is when there is enough ambient light to make an exposure on your film. You've probably seen pictures where there is a sharp image from the flash with a blurry ghosted image behind or in front of it from the strong ambient light and slower sync speed. Remember when using the 300mm, though, not to exceed the range of your flash.


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May 06, 2001

 

Anand Madabhushi
  The very fact that you wish to use 300mm says that the subject is very far from you! Make sure that the subject is within the flash range (see the 380Ex manual).Use a fast film say 400 or 800 and do not use lens hood.May be this would help!I tried this with my 75-300mm as fill flash and it worked though I was restless until I saw the developed film:~)


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May 11, 2001

 

Jeff S. Kennedy
  "Use a fast film say 400 or 800 and do not use lens hood." - I don't understand the suggestion not to use a lens hood. I can't think of many reasons not to use a lens hood. As to assuming that a subject is far away because you are using a 300mm lens let me say that long lenses like that make very nice portrait lenses for close subjects.


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May 13, 2001

 

Lyndon Guy
  I suspect the lens hood comment was directed at the fact that in some cases with that much lens sticking out in front of the camera, plus a lens hood,and an on-camera flash, you stand a fair chance of casting a shadow of the lens hood on your subject when the flash goes off...


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May 15, 2001

 
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