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Thread started 22 Jan 2010 (Friday) 03:57
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POTN Aussie Club #8 - Einsteins won't make you smart

 
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DAdeGroot
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Feb 24, 2010 18:31 as a reply to  @ post 9675953 |  #3181

mickeyjuice wrote in post #9675759 (external link)
Ta. This is frustrating, but, oh well.

Associated question (funny how these happen): Do I worry about printer profiling, or do I just use my Epson A4 printer for home stuff, and get the pro stuff printed out? I'm leaning towards the latter, I must say.

I don't print anything at home.


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mickeyjuice
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Feb 24, 2010 18:38 |  #3182
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DAdeGroot wrote in post #9676077 (external link)
I don't print anything at home.

Yeah, I'm pretty much heading in the direction of just a screen profiler - anything up to A4 for me is on the Epson R230, anything else we print elsewhere.


cheers, juice (Canon shooter, Elinchrom lighter, but pretty much agnostic on brands.)

  
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mickeyjuice
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Feb 24, 2010 18:46 |  #3183
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DAdeGroot wrote in post #9676077 (external link)
I don't print anything at home.

PS - did you check out those shots of the ND Fader I put up yesterday?


cheers, juice (Canon shooter, Elinchrom lighter, but pretty much agnostic on brands.)

  
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mickeyjuice
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Feb 24, 2010 18:48 |  #3184
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Best question heard so far today: "So, will you be bringing lighting?"

Yes, I've finally got to talk to the designer about what shots he wants for the Tigers membership mag.

Yes, I'm bringing quite a lot of lighting :-)


cheers, juice (Canon shooter, Elinchrom lighter, but pretty much agnostic on brands.)

  
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DAdeGroot
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Feb 24, 2010 18:57 as a reply to  @ post 9668647 |  #3185

mickeyjuice wrote in post #9676182 (external link)
PS - did you check out those shots of the ND Fader I put up yesterday?

No, but I have now. (yeah ok, I sometimes skip a couple of pages)

mickeyjuice wrote in post #9667658 (external link)
Bands a bit badly when set at 'max' (I think, but maybe I expect too much?), but I was running ISO3200, f2.8, 1/320

Hmmm, interesting. I guess they're essentially using two polarised filters to produce the ND effect.


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mickeyjuice
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Feb 24, 2010 19:06 |  #3186
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DAdeGroot wrote in post #9676241 (external link)
No, but I have now. (yeah ok, I sometimes skip a couple of pages)

Sensible, which is why I thought I'd mention it again.

Hmmm, interesting. I guess they're essentially using two polarised filters to produce the ND effect.

Yup, exactly. Not sure if I'm annoyed or not.


cheers, juice (Canon shooter, Elinchrom lighter, but pretty much agnostic on brands.)

  
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amsm
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Feb 24, 2010 19:26 |  #3187

mickeyjuice wrote in post #9676199 (external link)
Yes, I'm bringing quite a lot of lighting :-)

Will there be room to park your B-Double ? :p


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mickeyjuice
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Feb 24, 2010 19:38 |  #3188
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amsm wrote in post #9676433 (external link)
Will there be room to park your B-Double ? :p

I'm hoping there will be room for the MX5! Parking at Punt Rd is awful.

OK, I'm taking a 1510 full of lighting gear. That's a lot for this job :-)


cheers, juice (Canon shooter, Elinchrom lighter, but pretty much agnostic on brands.)

  
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BOSS
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Feb 24, 2010 20:43 as a reply to  @ mickeyjuice's post |  #3189
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@Juice,don't forget to check your MF/AF switch before you start shooting for the Tigers.;)


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S7000
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Feb 24, 2010 20:48 |  #3190

HI guys and girls!

Back from my trip down south, was great! Had a villa looking out onto which is a private beach for the resort. It was damn good! The day trip to Mogo Zoo was also awesome! Got a couple of hundred shots to get through and I'll post some up soon.

First things first though, gotta call Canon. :lol:

Ps. Nice taxes all! Mic that (I think it was mic) that yellow wall shot was good. Muchos vibrant! Oh, and Rai. Great work as usual (Although that first one was a re-post from memory).




  
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charlieharper
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Feb 24, 2010 22:27 |  #3191

Paul Buff wrote:
Feb 25, 2010 at 03:54 AM
So enough of this. The hopefully final circuit board designs are going to our Kansas robotic assembly partner this week. They will build a dozen or so and we will thoroughly test them and, if everything is as now indicated, we will be ready to produce the first run. I depend heavily on Dr Morgan for much of the bench work, and his unexpected seizure has put an additional burden on myself on on the rest of my technical staff

Source ......Fredmiranda.com (external link)

I'm really not helping anyone* with this am I :D !!

Austen.

*Myself included !!



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S7000
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Feb 24, 2010 22:35 |  #3192

Still talking about these lights ay? :rolleyes::lol:

Holiday tax:

IMAGE: http://farm3.static.flickr.com/2792/4386742628_e3c06933a0_b.jpg

Little guy lived outside our room. :lol:



  
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DigitalDabbler
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Feb 24, 2010 22:52 |  #3193

My brain is starting to hurt.

Coming from an electronics background, my understanding is that a stroboscope is a device, that once triggered, discharges a capacitor to provide a pulse of light. The length (in time) of that pulse is determined (first principles) by the size of said capacitor, and the current draw of the strobe tube (it's probably referred to as something else, but for this case let's call it that).

There are two ways to control the 'light burst'.

Control the capacitor charging time.

Fire a big-arsed SCR across said capacitor mid-way through the firing of the strobe, thus quenching the flash. (I'm guessing that this is what the einsteins will do).

Both methods will achieve the required exposure time, however the latter is highly inefficient.

As for flash timing affecting colour temperature, I'll need more information in order to be convinced.

To anyone who thinks I'm just being difficult, I was brought up to question everything. These statements may appear to be argumentative, they are merely points to encourage debate. Judging from the last two pages, there is little encouragement required.

C:\>


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charlieharper
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Feb 24, 2010 23:06 |  #3194

DigitalDabbler wrote in post #9677653 (external link)
....There are two ways to control the 'light burst'.

Control the capacitor charging time.

Fire a big-arsed SCR across said capacitor mid-way through the firing of the strobe, thus quenching the flash. (I'm guessing that this is what the einsteins will do).

Both methods will achieve the required exposure time, however the latter is highly inefficient..........

As *I* understand it, the IGBT circuitry (effectively) works exactly the same as a Speedlight, that is, it doesn't "quench", as in absorb, the "excess" power, rather like a dirty-great-big knife-switch it just cuts the power to the flash-tube, leaving the excess power in the capacitors.

That's why your Speedlight batteries last far longer on lower power, the capacitors are not fully discharged, hence less battery power is required to "top them up".

So the efficiency is not affected in that no excess electricity is being "dumped".

Is the way I understand it !!

Austen.



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charlieharper
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Feb 24, 2010 23:18 |  #3195

DigitalDabbler wrote in post #9677653 (external link)
........These statements may appear to be argumentative, they are merely points to encourage debate. Judging from the last two pages, there is little encouragement required.

Actually, I think there's very little "debate" going on :p :p !!!

Seems there's three or four of us potentially in the market for new (on-location) lighting gear and a similar number of options with a similar number of current users !!

It seems to me that with the probable exception of the E-Bay Specials (and, at their price, they may even have something going for them !!) there appears to be no "right" or "wrong" answer...........

Of the options being considered, D-Lite4's / Quadras / Einsteins / ( Rangers + Damos Profoto probably being a bit over-budget ;) where's the Bowens fan-bois ? ) none of them get a "Shocking choice" rating, likewise (Rai and the Quadras excepted, but I suspect he'd also "allow" the D-Lite4's ;) ) none of them get a "This is the only choice to get" rating !!!

So, for the amount of funds under consideration, I'm so grateful for all the guys inputs !!!

So, not "debate", just an active gathering of ideas :D :D !!

B.T.W...........Mic ( & Al ? ) back from Kayell yet ??

Austen.



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