Using a single strobe (NOT hotshoe flash)- creative examples - mark II

I think the confusion is in the similar terminology:

HSS (High Speed Sync) is when the flash pulses rapidly to get an even exposure during a faster-than-x-sync speed exposure. This does reduce overall flash output, as well as using up more battery power.

HyperSync uses the pre-sync information available in the TTL shoe pins to trigger a normal flash before X-Sync would occur. It does this by knowing how much time passes from pre-sync until X-sync. It can also eliminate the delay introduced by a radio slave.

More details here: http://wiki.pocketwiza​rd.com …rSync_and_High_​Speed_Sync

dtufino wrote in post #13308994
Check out the pocketwizard Hypersync videos on you tube and they'll explain how it works.... but i've shot at full power and hypersync and the flash output was all even for me....

I've heard of various reliability issues with this in early versions - but am definitely curious about how reliable it is in the current full-production versions. Glad to hear that you're having good success with it!

dtufino wrote in post #13308648
!!!!BINGO!!!!

Also, with the pocket wizard flex and mini, you don't lose any flash output no matter how fast the shutter speeds...

i've shot @ 1/8000th w/ full flash and got some amazing results....

There is no way you can shoot your Speedlite using HyperSync or High Speed Sync mode at very fast shutter speeds without losing light output for exposure. It's just the physics of how the flash, HS and HSS work. At high shutter speeds, only a portion of the image sensor is exposed at any given point in time and, hence, only a part of the flash output can be used to exposure that part of the sensor. For the full power of the flash to be used, the whole sensor would need to be exposed to the flash when it goes off.

dtufino wrote in post #13308994
Check out the pocketwizard Hypersync videos on you tube and they'll explain how it works.... but i've shot at full power and hypersync and the flash output was all even for me....

If the flash exposure was even, I'm thinking maybe you were in HSS mode rather than HyperSync mode. That or there was enough ambient lighting to make it look like the flash exposure was even throughout the frame.

^incorrect:

examples:

1:
Camera Maker: Canon
Camera Model: Canon EOS 7D
Lens: EF70-200mm f/2.8L USM
Image Date: 2011-10-09 16:15:00 +0000
Focal Length: 125mm
Focus Distance: 13.8m
Aperture: f/3.2
Exposure Time: 0.0006 s (1/1600)
ISO equiv: 100
Photographer: DAVID TUFINO
Copyright: D*TUFINO PHOTOGRAPHY 2011
Software: Adobe Photoshop Lightroom 3.4.1

HTTP response: NOT FOUND | MIME changed to 'image/gif' | Redirected to error image by FLICKR

Also, my apologies, i was in High Speed Sync, but off shoe!

he explains it really well:
http://www.youtube.com …1&list=PL760952​39F9D65193

He's not saying you don't get "even" lighting in that sense of the word. If you look at a flash pulse on a graph, you'll see there is a "peak" and a "tail". When shooting within x-sync speeds - the entire flash duration is captured by the camera's sensor. When shooting in hypersync, you adjust the timing of the flash so that the shutter is open during the peak of the light output (or the tail depending on desired effect & speed). It is also off-setting the sync to better align with the shutter opening. By that nature, the shutter is only capturing a fraction of the light pulse - not the entire duration. Thus you are using less than 100% of the flash's output during hypersync shooting.

http://wiki.pocketwiza​rd.com/index.php?title​=HyperSync

dtufino wrote in post #13309161
Flash output looks pretty even to me....

dtufino,

There is no doubt the flashes can be used very effectively at very fast shutter speeds - your pictures provide a nice exclamation point for this fact.

Your pictures do not negate the fact that shutter speeds below x-sync speed have no effect on flash exposure but that at speeds above x-sync they do have an effect. The fact that someone is able to get properly exposed flash images in HSS mode only means the flash had enough reserve power to compensate for the flash exposure loss incurred from shutter speeds above x-sync.

yup... Sorry we all veered off topic..... thanks for the info....

Veered off topic but i am impressed that the 580 can overpower the sun in HSS mode. I wonder if my 430 can get results like that?

^ I'm sure it can @ full power, bare flash, and within the subject's radius...



PS. Nice captures, David!!! Love the True Blue III's on the 3rd picture!!! Hehehehhehe...

airbutchie wrote in post #13310030
^ I'm sure it can @ full power, bare flash, and within the subject's radius...



PS. Nice captures, David!!! Love the True Blue III's on the 3rd picture!!! Hehehehhehe...

I'm "whoryder" on SOLE

airbutchie wrote in post #13310030
PS. Nice captures, David!!!

David,

I meant to say the same thing and mistakenly forgot to include it with my earlier post. Those pics are really good.

Were they shot bare flash or did you shoot them through a modifier?

Trail Boss wrote in post #13310423
David,

I meant to say the same thing and mistakenly forgot to include it with my earlier post. Those pics are really good.

Were they shot bare flash or did you shoot them through a modifier?

Thank You!

These were shot bare.... check out the video from the shoot:
http://vimeo.com/30289​462

dtufino wrote in post #13308648
!!!!BINGO!!!!

Also, with the pocket wizard flex and mini, you don't lose any flash output no matter how fast the shutter speeds...

i've shot @ 1/8000th w/ full flash and got some amazing results....

We've just had one thread totally derailed by confusion around hyper sync, lets not derail this one.

If you want to talk about it, START A NEW THREAD.

Moppie wrote in post #13310542
We've just had one thread totally derailed by confusion around hyper sync, lets not derail this one.

If you want to talk about it, START A NEW THREAD.

Moppie, i'm only answering questions asked... and if you continue reading, i totally said we left the topic and we should stick to it....

Anyway, here a 1 light shot:

dtufino wrote in post #13310438
These were shot bare.... check out the video from the shoot:
http://vimeo.com/30289​462

That was cool. Thank you.