Strobeam DL 250

specialman

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Pat MacInnes
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Saw this today on the Viewfinder Photography stand at Focus2012. Seems to be a new product, as t's not advertised on their website, although they do have some existing Strobeam kits of another type.

IMAG0343.jpg


What caught my eye was the build and features of the heads. Digital display, loads of power adjustment in 1/3rd steps and wireless triggering built-in.

The guy on the stand gave me a good demo. The wireless controller is fantastic; it not only fires the flash heads it allows you to remotely alter power and ID number within groups. We tested the range from 30 metres away too, and the adjustments were implemented wirelessly and the flash fired.

They run off a battery that is claimed to do over 1200 full power flashes off a charge (which take 4hrs off the mains) and it'll power two heads at equal powers for 500+ flashes at full power.

there's also an FP function. I asked about this, thinking it was going to be some high-speed sync mode for fast shutter speeds but it's actually to allow the flash to fire on something like 14fps if required, albeit at a lower power. I think he said it was 1/16th but can't be sure. It worked as he showed me, so it could be a good function for sports togs. How it works in real life I don't know.

There aren't any current modifiers available - you have to move up to the larger 500 head for that apparently - but the head features a built-in angle tilt and brolly slot so modifiers like shoot trough brollies and umbrella soft boxes will work fine.

It didn't appear to have a modelling light and comes with a cone on the front.

I didn't catch the price for every different package but a basic one head set with battery and cables is about 600 inc. VAT. Good price I thought, although it's a bit of an untested brand I think so not sure about longevity.

Build quality is first rate though and there are user-replaceable flash tubes available according to the brochure. The power cords all looked heavy duty and the plug was locked in by a metal mount.

Spare batteries cost about £90 and you can get a different cable to use the battery to power speed lights if required.

A few details from the brochure so people can judge whether it's good or bad:

* 250-watts
* f-stop measured distance at 1m T=1/125th ISO 100 - F22 @ 1/1, f4 @ 1/32
* 7.0 f-stops of adjustment
* Recycle times: 0.2sec - 1.9sec (can be fired before 100 per cent recycle is reached)
* flash duration of 1/9600th FP mode at half power
* 3G trigger has a range of 100metres
* Colour temp is 5500K (+/-200K)
* 75000 flash lifespan
* Li-On battery gives 1200 full power flashes, 20000 low power flashes
* 4-hour charge time
* Diecast housing with titanic aluminium
* Fits standard spigots up to 5/8
* 7-9mm umbrella shaft
* 885g weight

Excuse the pic - I'll get a better image tomorrow when i go back for a close inspection. :)

http://www.strobeam.us/es/
 
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It looks a bit like a big hot-shoe EGBT type unit, Quantum style. I would want to be very clear about the light output. If those numbers are generated using the reflector shown, ie very efficient, it doesn't look like it's making the kind of light you'd get from a 250Ws studio head.

Edit: I just tried an Elinchrom D-Lite 200Ws with as close as I've got to a small reflector like the one shown. At 1.0m ISO100 I'm getting exactly f/32. If that's a good comparison, it's actually no more powerful than a top end hot-shoe gun. Could be wrong though, and not sure if that's a fair comparison ;)
 
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Output was measured using the small dish with the diffuser on the front. (Guess how I know.....)

The thick tupperware robs at least one stop - probably a little more.

1. In identical circumstances it was somewhat more powerful than the maximum I could get from an SB900 without any diffusion (though I don't have my notes here so I'm not prepared to guess how much) with a better spread.

2. Although I didn't test it against another brand head for comparison purposes, I've gone on record elsewhere as saying that I believe IGBT delivers a little less power than you might expect from the w/s rating.

Some of the information on FP mode seems a little confused. It delivers roughly 1/16 power at a duration of something like 1/14,000 (this is from memory so don't quote me and I know that's not what it says in the brochure) which stops action very nicely. However, a side effect of firing at 1/16 is ultra fast recycling. I've had the G5 (bigger brother of this light) running happily at 9 fps.


High Speed Flash by Jonathan Ryan, on Flickr

BTW I get 30 mins wifi a day. I'm up to 28 and will be at Focus all day so don't expect me to see this thread for a while ;)
 
No problems Jonathan - I saw this on your flickr but never got round to posting the link... thanks for adding to the thread as someone who's actually used the gear :)
 
Interesting :)

Anyone at Focus with a light meter could do a quick comparison. Just take the diffuser cap off and fire it into a white umbrella, then do the same with another head of known power, like a Lencarta EP300 with standard umbrella reflector.

That would give a pretty good comparison within a couple of tenths at least, if the distances are the same as you can reasonably get them. +/- 2ins will change it about one tenth.
 
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