Over flitsduur, is dit hoe het is?
Dan valt de •1/520 Elinchrom BX 500Ri wel wat tegen.
Van DPreview
forum;
Im a fairly glad owner of 4 Elinchrom BXRi 500 heads with lots of Elinchrom accessories.
But new clients demand the possibility of freezing action and Im uncertain if the BXRi500 can produce this.
That depends entirely on what sort of "action" that they're interested in "freezing". yOOrek asked the right question.
The BX 500Ri will do fine with leaps that involve a fairly static "look at me" phase at the top of the leap, like in the review that yOOrek linked.
It will (like any flash with a 1/1500 or 1/2000 sec t.5 speed) not suffice if there's a lot of hand motion in the leap, or if there's any type of spin (leap and spin, gymnastic moves, martial arts). For that, you need to be about 1/3,000 sec t.5. And if the action involves swinging anything (sword, baseball bat, golf club, tennis racket) think more like 1/6,000 sec. Also really "whipping" wind blown hair or clothes gets up into that speed, as does a spray of anything wet.
Basically, you take that t.5 spec (an "engineering" number which tells you how to get at least half the power from the flash) and multiply by 3 to get the t.1 spec, which tells you how much "motion stopping" power the flash has.
The BX 500Ri is pretty typical of flashes in the 500-600 w-s class, its 1/1558 sec t.5 time translates to 1/519 sec t.1, so it stops motion just like a 1/500 sec shutter speed.
You typically will get shorter durations by going to a flash in the 250-300 w-s class. The smaller capacitors drain quicker. BX 250Ri has a t.5 of 1/2762, which makes the t.1 about 1/920 sec. It's a lot like shooting outdoors at 1/1000 sec, a good speed for most sports.
The thing to remember is that turning a big flash down does not make it work faster, like a smaller flash. It actually makes it work slower. yOOrek gave the numbers for the BX 500Ri
•1/1558 at full power
•1/1395 at 1/2 power
That trend continues as you turn down the power, every stop you turn it down makes it about 15% slower, until by the time you hit the lowest power, you've doubled the duration.
So, you might find that 2 BX500Ri and 2 BX250Ri makes a better "kit" for you.
The other way to improve things is by getting an IGBT flash. There aren't very many of those on the market (Broncolor Scoro is available worldwide, but is insanely expensive, think $15,000-20,000 for a 3 head system. Paul Buff "Einstein" is definitely the wave of the future, but availability outside US and Canada sucks. Photogenics Solair is a bit outdated, they haven't introduced any new products since the company was bought about 6 years ago).
I did something involving water whipping off hair that required renting one of those Scoros.
Ive been trawling the net for weeks to find videos or test of this combination but without any luck.
Has any of you succeded in freezing action with Elinchrom BXRi heads og do I need RX heads for this?
Actually, the RX and the BXRi are almost identical in this respect. The speed difference is only about 25%, you'll never notice that in actual shooting. If you want to stay in the same power range as your BX 500Ri, the flashes to look at are Bowens and Profoto.
Here's a quick breakdown of the t.1 (motion stopping) times of some popular monolights in the 400-600 w-s class.
•1/966 Bowens Gemini 500 Pro
•1/883 Profoto D1
•1/683 Elinchrom Style RX 600
•1/600 White Lightning X1600
•1/533 Paul Buff Einstein 640
•1/520 Elinchrom BX 500Ri
•1/266 Elinchrom D-Lite it 400
The Einstein probably shouldn't be in that list, since it's an IGBT flash. At full power, it's comparable to the BX 500Ri and slightly slower than the RX 600. But if you turn all those flashes down to half power, the Einstein gets faster, 1/2,000 sec in its "action" mode, while everything else on the list gets slower. Even if you turn it down 1/3 stop (it's a 640 w-s flash, so 1/3 stop down is 500 w-s, same as a BX 500Ri at full power) it ends up at about 1/1,200 sec, twice as fast as either the BX or the RX.
I expect that all flash manufacturers will switch over to IGBT flashes in the near future.
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. Ik zou me zelf alleen verdiepen in één keuze systeem... hoe stom dat ook klinkt :P! Ga eerst wat met reguliere rapportage-fliters werken op M... goedkoper en je leert er net zoveel van met belichting /u/26191/AC-60px.png?f=community)
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Doelde meer op de keuze softbox of paraplu... maar dat is in bovenstaande reactie wel duidelijk denk ik 
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