A question about Nikon speedlights and shutter speeds
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It will be just the same then - 1/200th. That's the maximum shutter speed at which the whole sensor is uncovered during exposure and the whole frame will be lit by flash. At faster shutter speeds the two shutter curtains move across the sensor together with a slit between them so only the part of the scene where the slit is when the flash fires will be lit by the flash. Hope that makes some sort of sense?
Just to confuse the issue - if your camera and flashgun support hi speed flash sync, then you can use any shutter speed right up the fastest speed. It's not really true sync though - in this mode the flash emits a continuous string of small flashes joined like a string of beads, so the whole frame is exposed by the flash as the slit moves across the sensor.
Just to confuse the issue - if your camera and flashgun support hi speed flash sync, then you can use any shutter speed right up the fastest speed. It's not really true sync though - in this mode the flash emits a continuous string of small flashes joined like a string of beads, so the whole frame is exposed by the flash as the slit moves across the sensor.
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Well Tommo's question could have been phrased better, it isn't the flash which determines the sync speed - it's the camera- or more specifically - the shutter. All the flash does is ...well it flashes! It's the camera which will determine if the shutter is fully open when it does flash.
I suspect you know that only too well though Mr Joxby.
I suspect you know that only too well though Mr Joxby.
chuckles
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Well Tommo's question could have been phrased better, it isn't the flash which determines the sync speed - it's the camera- or more specifically - the shutter. All the flash does is ...well it flashes! It's the camera which will determine if the shutter is fully open when it does flash.
I suspect you know that only too well though Mr Joxby.
Hmmm - not strictly true Cedric
Not all Nikon flashguns are capable of FP synchronisation which would allow high shutter speeds, so the flash does determine the synch speed in some cases.....
... trouble is, pedantry is my second name
Tommo's question is tantalising short of the necessary data
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Sorry Barry, but the shutter determines if the flash fires when the shutter is fully open (normal sync) is what I said. Hi speed sync has nothing to do with the shutter being fully open - we're talking about that moving slit now.
And as one good pedant deserves another, both the camera and the flashgun have to be hi-speed sync compatible anyway, and you'd still set the shutter speed on the camera for hi speed sync, leaving the flash to output the necessary power.
And as one good pedant deserves another, both the camera and the flashgun have to be hi-speed sync compatible anyway, and you'd still set the shutter speed on the camera for hi speed sync, leaving the flash to output the necessary power.
chuckles
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Well, it's all tommo's fault...... he still hasn't given us all the details! (He said, pedantically pointing the finger some other direction).
I stand corrected - and by my original statement - 1/125th Sec will virtually guarantee trouble free results in the Nikon world!
I stand corrected - and by my original statement - 1/125th Sec will virtually guarantee trouble free results in the Nikon world!
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Understanding flash causes more problems than just about anything else, and I can understand it tbh.
If I understand Tommo, I think when he talks about the standard flash, he means the internal pop-up flash. If his max flash sync shutter speed with the internal flash is 1/200th sec, then that is fixed by the shutter in his camera and wont change regardless of what other flashgun he uses, unless we're talking about hi-speed flash sync, which is a different kettle of fish altogether.
These sync problems only arise because of the focal plane shutters in our DSLR cameras. I think once people have got a handle on what a FP shutter is and how it works, it's a lot easier to understand the flash issue.
If I understand Tommo, I think when he talks about the standard flash, he means the internal pop-up flash. If his max flash sync shutter speed with the internal flash is 1/200th sec, then that is fixed by the shutter in his camera and wont change regardless of what other flashgun he uses, unless we're talking about hi-speed flash sync, which is a different kettle of fish altogether.
These sync problems only arise because of the focal plane shutters in our DSLR cameras. I think once people have got a handle on what a FP shutter is and how it works, it's a lot easier to understand the flash issue.