this post was submitted on 24 Oct 2023
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Photography

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Minimum shutter speed with a speedlite (alien.top)
submitted 11 months ago by frenshprince@alien.top to c/photography@viewfinder.pro
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Hi there,

I have a what I thought would be a simple question, but can find a simple answer on Google.

Some friends will have a party for Halloween, half indoor, half outdoor. Ans they asked me to take some pictures, since I’m the photographer. The thing is, it’s not really the kind of photos I make. And I have a little knowledge about using flash.

So here’s my gear :

  • Canon R6ii
  • 35mm 1.8
  • 24mm 1.8
  • Godox V860

I’m a little familiar with the concept of ambient light using a flash, but here’s my question : If I don’t want to crank up my Iso for ambient light, how slow I can go with my shutter speed ? People will probably dance and drink, so without flash, with good light conditions, I would probably go between 1/250 and 1/500. But with a flash, considering that it’s supposed to freeze the subject, how slow can I set the shutter speed ?

Thanks for your help

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[–] X4dow@alien.top 1 points 11 months ago (1 children)

If you're in pitch darkness and shoot 1/250 or 1/20sec with a powerful flash on low iso you will find that they look exactly the same, as the 1/20sec exposure without flash would of been pitch black.

When you see photos of things like water droplets/shattering glass etc, completely frozen in time Often are taken with exposures several seconds long, in a dark room with a flash triggered by a sound sensor. So the only thing exposing is the flash, getting you really frozen images with no motion blur

[–] frenshprince@alien.top 1 points 11 months ago

I'll try that tonight.
And will visit my friend's place to do some experiementations.

Thanks for your answer :)