 Dennis Martineau |
Flash; Dragging the Shutter Someone please help me with the confusion I am experiencing regarding flash and dragging the shutter? I have searched this site's Q&A database, my owner's manuals (who the heck writes these owner's manuals?) but only become more perplexed the more I read. If you consider yourself knowledgeable in the area of flash and TTL, etc, then I would greatly appreciate your time and effort to help me as I feel that my development as a photographer is stunted at this juncture due to my own self doubt regarding the topic I am writing about here. I own a Canon Rebel II and Canon Rebel G. This is what I THINK I understand about dragging the shutter: If I set my Rebel to AV for aperture value, I will be selecting the aperture value that I think I need for a particular situation. The camera's built-in computer will select the shutter speed for me to control the amount of flash (off-camera Canon Rebel compatible Sigma EF-500 ST) that is permitted to reach the subject being photographed. Or does the flash determine how much light is emitted? Or does the flash electronics work in conjuntion with the camera's electronics to control flash???? Which leads to another question----if I set my Sigma flash to "manual" does the flash work independently from the camera's electronics to control flash intensity? (This Sigma flash has 3 settings to choose from....TTL, Mh, Ml) does "TTL" mean the flash must work with the camera, or does the camera tell the flash what to do? Or do they work together? Does Mh and Ml (Manual High, Manual Low) mean the flash works independently? To operate the flash in Mh or Ml, does this mean I select "Manual" on the camera dial? I AM able to control both aperture value and time value when the camera is in "Manual." As far as "dragging the shutter," can I choose an aperture manually, say of f8 or f5.6 and also choose the shutter time of say 1/30 or 1/15 or 1/8? I think that a lot of my confusion is a direct result of not understanding when the flash is "boss" and when the camera is "boss." Thank you very much for your help. Hopefully, you won't think I am so dense as not to be worth the time and effort to explain things to me!!!!!
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Andy |
Hi Dennis, here is an article about how the Canon camera and the EX flashes work together. It is quite long but very informative and easy to understand. In the article (I think in part 3) it mentioned about manual setting on the camera and manual setting on the flash (two different things). The author explains very well about the relationship of the aperture (the subject) and shutter speed setting (for background). Hope this helps.
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Dennis Martineau |
Thanks, Andy. What's that link again?
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Andy |
I did that again. Sorry. Here's the link: http://photonotes.org/articles/eos-flash/
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Dennis Martineau |
Thanks Andy for the link. It was a huge help. Have a great day!!!
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