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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[–] SignalButterscotch73@alien.top 1 points 11 months ago (1 children)

You can go as slow as you want for some fun effects, I did a series of self portraits earlier this year some of them with long exposure and flash combined. Shooting at 1/5s for all the motion blur and a splash of light from the flash stopping movement in the same shot. link (Should be the right pic, 7 of 10 if it isn't)

In low light conditions with low ISO the speed of the flash is what's stopping the movement, not the shutter speed. A flash setting of 1/1 is the equivalent of 1/250 shutter without ambient light, 1/2 is the equivalent of 1/919. This article in the section THE FLASH – PHOTOS AT THE SPEED OF LIGHT explains more.

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

Thank you !
I will look to it.