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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 16 Apr 2008 (Wednesday) 01:11
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Ezybox Hotshoe 60cm kit problem

 
Curtis ­ N
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Jun 02, 2008 08:23 |  #16

Take with a grain of salt any advertisement or specification on a light modifier that tells you how many "stops" of light is lost. They never answer the question, "Compared to what?"

The meter reading from any light source will depend on the modifier in place. Hotshoe flash units are extremely efficient when used direct, because of the internal reflector and fresnel lens. Diffuse this light in any way, and that inherent efficiency is gone.

What's more, the reading you get from a direct flash unit will depend on its angle of coverage. The GN from a 580EX varies from 15 meters to 58 meters, depending on the zoom setting. But this won't matter much if you blast it through some translucent material or bounce off a diffuse reflective surface. Measuring the "light loss" from a modifier is an enigma since it depends what zoom setting you're comparing it to.


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DaveMcBride
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Jun 05, 2008 18:06 |  #17

So are you saying I should hang on to them Curtis?


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Curtis ­ N
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Jun 05, 2008 18:27 |  #18

What I'm saying is that I don't think other modifiers are likely to give you significantly better performance. But it's hard to know for sure without making direct comparisons.


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T2000
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Jun 05, 2008 18:32 as a reply to  @ Curtis N's post |  #19
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I have the large size (24 incher). I like it a lot. Well made. Sets up quickly. I didn't do any testing of light loss. I don't care. It's a softbox. It loses light.

It has two diffusers and I use them both.

I highly recommend it. :)




  
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DaveMcBride
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Jun 06, 2008 00:47 |  #20

Well made? I have never seen anything as flimsy in my life :lol:
They are great for close range work but if you need small apertures for bigger subjects, forget it.


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tenoverthenose
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Jun 06, 2008 12:25 as a reply to  @ DaveMcBride's post |  #21

Mine seem well made for what they are - portable. I use mine for outdoor portraits and they work well, put subject in shade and they produce some nice light!


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DaveMcBride
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Jun 07, 2008 17:06 |  #22

Well, good luck with them, I'm off to buy some decent lights and soft boxes.


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T2000
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Jun 07, 2008 23:01 |  #23
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"Well made? I have never seen anything as flimsy in my life"

http://alzodigital.com …_porta_flash_so​ft_box.htm (external link)




  
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DaveMcBride
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Jun 08, 2008 01:33 |  #24

I was referring to the bracket....which looks pretty much like that one :lol: I had too put two self tappers in the ring to stop it bending forward and slipping round.


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T2000
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Jun 08, 2008 02:09 |  #25
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Missed that sorry. You sure you're setting it up correctly. It's got those two little metal pieces sticking out a bit that kind of locks it.




  
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DaveMcBride
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Jun 08, 2008 03:55 |  #26

That is the main problem, those pins are tiny and too short, soon as any pressure goes on the ring it bends forward and the pins no longer locate into it, so it slips around as it is only fixed at one point. That ring needs to be more rigid and fixed at two points.


www.moparuk.co.uk (external link) Classic American Muscle in the UK - Street or Strip
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Canon EOS 5D MKII/EOS 5D/EOS 20D, EF17-40L, EF24-105 ISL, EF100-400 ISL, 1.4x extender, 3 x Speedlite 550EX, HiTech ND and Grey Grad Filter System

  
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digitaljoe
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Jun 08, 2008 10:51 as a reply to  @ DaveMcBride's post |  #27

Good post Dave! I was thinking of buying one.

What softboxes would you choose?




  
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tetrode
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Jun 08, 2008 13:20 |  #28

DaveMcBride wrote in post #5682199 (external link)
That is the main problem, those pins are tiny and too short, soon as any pressure goes on the ring it bends forward and the pins no longer locate into it, so it slips around as it is only fixed at one point. That ring needs to be more rigid and fixed at two points.

Hi, Dave;

I'm experiencing the same problem with my 15" x 15" EZYbox Hotshoe. The weight of the box causes the mounting ring to flex/bend at the point where the flash bracket is attached.

How you found a way to reinforce the ring so that it doesn't bend?

Dave F.




  
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tenoverthenose
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Jun 08, 2008 14:46 as a reply to  @ tetrode's post |  #29

I haven't had the problem with the mounting ring that you are describing (yet) but I guess you could fix the ring together by welding it or even using JB Weld.


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DaveMcBride
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Jun 08, 2008 15:21 |  #30

The only quick fix I found to work was to drive two short self tappers into the holes either side of the pins like this


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www.moparuk.co.uk (external link) Classic American Muscle in the UK - Street or Strip
www.dmbphotographic.co​.uk (external link) Digital Art, Photography, Muscle Car Illustrations
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Canon EOS 5D MKII/EOS 5D/EOS 20D, EF17-40L, EF24-105 ISL, EF100-400 ISL, 1.4x extender, 3 x Speedlite 550EX, HiTech ND and Grey Grad Filter System

  
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Ezybox Hotshoe 60cm kit problem
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