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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 26 Jan 2013 (Saturday) 10:20
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A New Bare Bulb Flash Arrives

 
agv8or
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Apr 28, 2013 01:36 as a reply to  @ post 15874329 |  #1126

Quantum Telephoto Reflector test

Had a little time today to finally test the Quantum TR on the CL-180 in H (hss) mode outside. Please ignore the OF images as this was the first time I have had the 50L on the 5D mII and "0" ma.

Images shot at around 3:30-4:00 pm to the SW into the brightest part of the sky without including the sun in the image. Images have only been croped with no other processing.

Images shot at 1/8000, f/1.4 @ ISO 50
CL-180 @ 1/1 and 6' height

1st image: with ND4X (2 stop) filter, flash 15' from subject
2nd image: with ND8X (3 stop) filter, flash 12' from subject


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agv8or
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Apr 28, 2013 02:06 as a reply to  @ agv8or's post |  #1127

Quantum Telephoto Reflector CL-180 H mode test

CL-180 1/1, 12' from subject height 6' in H (hss) mode

Both images shot at 1/8000, f/1.2, ISO 50 with a ND8X (3 stop) filter.

Again pleased ignore the OF images and AWB (auto white balance).


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agv8or
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Apr 28, 2013 02:24 as a reply to  @ agv8or's post |  #1128

Quantum Telephoto Reflector CL-180 H (hss) mode

Final 2 images from todays testing. Again please ignore and forgive the OF images and AWB.

First image: CL-180 1/1, 9' from subject height 6'
1/8000, f/1.2, ISO 50 stacked ND8X and ND2X (4 stops) filters

Second image: CL-180 1/1, shooting through a Westcott collapsible satin umbrella 3' from subject height 6 1/2'
1/3200, f/1.2, ISO 50 ND8X (3 stop) filter


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Apr 28, 2013 02:29 |  #1129

agv8or wrote in post #15874313 (external link)
Dean also suggested borrowing strobes for these occasions just in case the gels did melt and stick. :lol:

Don't actually remember that bit - must be my dissolute lifestyle or old age or something. :oops:


Phil ǁ Kershaw Soho Reflex: 4¼" Ross Xpres, 6½" Aldis, Super XX/ABC Pyro in 24 DDS, HP3/Meritol Metol in RFH, Johnson 'Scales' brand flash powder. Kodak Duo Six-20/Verichrome Pan. Other odd bits over the decades, simply to get the job done - not merely to polish and brag about cos I'm too mean to buy the polish!
FlickR (external link) ◄► "The Other Yongnuo User Guide v4.12" by Clive Bolton (external link) ◄► UK Railway Photographs 1906-79 (external link)

  
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elv
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Apr 28, 2013 03:37 |  #1130

agv8or wrote in post #15874653 (external link)
Quantum Telephoto Reflector CL-180 H mode test

CL-180 1/1, 12' from subject height 6' in H (hss) mode

Both images shot at 1/8000, f/1.2, ISO 50 with a ND8X (3 stop) filter.

Again pleased ignore the OF images and AWB (auto white balance).

IMG NOTICE: [NOT AN IMAGE URL, NOT RENDERED INLINE]

Thanks for doing all these tests.

I thought the 360 at least would really be needed still in the full sun, but this is totally usable. This will be great to freeze some skating shots, you've already underexposed more than needed. (I'd still go for the 360 though if this is what your hoping to do).

That's a sweet lens btw ! (and great location too, right at your doorstep it seems :-))

.


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agv8or
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Apr 28, 2013 04:39 |  #1131

Gareth ONeill wrote in post #15865261 (external link)
=Gareth O'Neill;15865261]thank​s for these. it's very obvious the extender is required.

did you use the diffusor for the standard reflector shot?

do you have a better beamer? can you do a flashgun w/ beamer vs cl-180 w/ tele reflector comparison? at full power and say 1/4.

Here is a couple of shots for comparrison with my previous posts:
https://photography-on-the.net …p=15864897&post​count=1089
and
https://photography-on-the.net …p=15864897&post​count=1089

Same camera settings and placement as before although it looks like I set up a little further back than I had previously.

Canon 5D mII w/EF 24-105L @ 24mm manual mode, f/4, 1/125, ISO 800
Speedlites were aimed at overhead door 110 feet from flash
Flash on light stand to camera right, height 6'

First image: 600EX-RT manual mode 1/1 @ 200mm zoom

Second image: 580EX II with Better Beamer manual mode 1/1 @ 50mm zoom


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agv8or
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Apr 28, 2013 05:10 |  #1132

elv wrote in post #15874730 (external link)
Thanks for doing all these tests.

I thought the 360 at least would really be needed still in the full sun, but this is totally usable. This will be great to freeze some skating shots, you've already underexposed more than needed. (I'd still go for the 360 though if this is what your hoping to do).

That's a sweet lens btw ! (and great location too, right at your doorstep it seems :-))

.

No problem...my testing was miniscual compared to what you have done with the CL-180 in putting your review together. I have a few more tests I hope to complete in the coming days. Telephoto reflector when paired with telephoto lenses (as requested) and I have some other hss ideas I would like to try but that will be the projects for the end of next week at the earliest.


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agv8or
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Apr 28, 2013 05:15 |  #1133

tetrode wrote in post #15874329 (external link)
How about a spring clip like this:

QUOTED IMAGE

Installed outside diameter would be 1.67", same as the inside diameter of a Roscosleeve for T12 fluorescent bulbs. Slip two of these over the flashtube and the Roscosleeve over the outside.

That is a pretty cool idea...have you started working on the prototype?


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elv
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Apr 28, 2013 12:22 as a reply to  @ agv8or's post |  #1134

Guys Edward is getting enquires now regarding which radio triggers will work with Nikon and the 5DIII etc in HSS (H-mode), since I put the review up (external link).

I knew that would happen, and had been working on a more detailed explanation of the triggers anyway, but I've posted it up here now -

http://flashhavoc.com …0-radio-triggers-and-hss/ (external link)

(I haven't had a chance to proof read and revise it yet myself)

If anyone has any of these pre-sync / Hypersync / HSS enabled triggers listed though, or any others to try in H-mode, could you please let us know how they go so that we can try and compilate a list of which triggers are working reasonably well.

The initial list is here -

NIKON -

So far the Pixel Kings for Nikon are confirmed working

Other triggers that are highly likely compatible, but are yet to be confirmed -
- Phottix Odin (new firmware due soon should make these ideal)
- YN-622N for Nikon - Coming soon - (but worth waiting for if you're after a good inexpensive option)

Quite Possible - but also need to be confirmed
- PocketWizard TT1 or TT5 with any PocketWizard receiver
- Radiopopper PX with JrX receiver
- Ojecoco H-550 may be another possible option


CANON - (all models)

So far the YN-622C are confirmed working quite well.

Other triggers that are highly likely compatible, but are yet to be confirmed -
- Phottix Odin (new firmware due soon should make these ideal)
- Pixel King for Canon

Quite Possible - but also need to be confirmed
- PocketWizard TT1 or TT5 with any PocketWizard receiver
- Radiopopper PX with JrX receiver

Another confirmation is the Aokatec AK-TTL with Nikon, but only up to 1/1000th
(they are a different system, so surprising they work at all).


If you can try any of these triggers in H-mode, with Canon or Nikon, it would be big help. For Canon it doesn't have to be the 5DIII, any feedback would help.

Thanks!
.


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Apr 28, 2013 16:05 as a reply to  @ elv's post |  #1135

Quantum Telephoto Reflector CL 180 H mode Test

So yesterday, while testing the CL 180 and QTR in H mode, I slapped a Westcott satin umbrella in front of the tele reflector and found that I lost a whole lot of light and that diffusing the tele reflector did not work so well. Then I got to thinking that the cheap and small Flashpoint umbrellas are more transparent and may be better suited for such a task. So I drilled a hole in my tele reflector and mounted the Flashpoint umbrella and here is the setup. (see the results in the next post).


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agv8or
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Apr 28, 2013 16:09 as a reply to  @ agv8or's post |  #1136

Quantum Telephoto Reflector CL 180 H mode Flashpoint umbrella Test

Canon 5D mII
1/6400
F/ 8
ISO 400

Image 1: 1/1 power with Flashpoint umbrella 22" from subject

Image 2: 1/8 power without umbrella, reflector 32" from subject


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Gareth ­ O'Neill
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Apr 28, 2013 16:28 |  #1137

agv8or wrote in post #15876356 (external link)
Quantum Telephoto Reflector CL 180 H mode Flashpoint umbrella Test

Canon 5D mII
1/6400
F/ 8
ISO 400

Image 1: 1/1 power with Flashpoint umbrella 22" from subject

Image 2: 1/8 power without umbrella, reflector 32" from subject

Thanks for all of the tests! do you live on an airforce base?


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dmward
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Apr 28, 2013 18:33 |  #1138

Gareth ONeill wrote in post #15876402 (external link)
=Gareth O'Neill;15876402]Thank​s for all of the tests! do you live on an airforce base?

From the looks of the plane in the background I'd say its more an ag arial spraying service hanger. Moniker is a hint as well. :-)


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tetrode
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Apr 28, 2013 19:59 |  #1139

dmward wrote in post #15876768 (external link)
From the looks of the plane in the background I'd say its more an ag arial spraying service hanger. Moniker is a hint as well. :-)

Whenever I see one of Rand's posts, this image ALWAYS pops into my head:

IMAGE: http://bloximages.newyork1.vip.townnews.com/columbiatribune.com/content/tncms/assets/v3/editorial/5/f7/5f78c1c2-591b-11e2-a085-001a4bcf6878/50eb4f9116551.image.jpg



  
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agv8or
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Apr 28, 2013 21:07 |  #1140

Gareth ONeill wrote in post #15876402 (external link)
=Gareth O'Neill;15876402]Thank​s for all of the tests! do you live on an airforce base?

No problem since I was going to be testing my new Cheetah lights anyway I might as well share the results. I live and work on one of the many former flight training airfields built by the military during World War II. After the war some of the airfields were either abandoned or reused for other purposes but many were turned over to local cities for use as municipal airports which is the case for the airport where I am located.

I did do a little testing with the CL 180 / QTR combo in H mode with a 300 2.8 this afternoon and much as I suspected the results are very similar to using a Better Beamer although in this case I must admit I would prefer the Better Beamer. I am sure there are going to be many instances where the CL 180 will shine (no pun intended) and even when paired with the QTR but as a single light source, in the middle of the day, for use as fill flash on a tele lens it's not very noticeable past about 70-80 feet.

This is one of those conditions that requires multiple Speedlights/Speedlites ganged together something like used by David Black on You Tube. I have 6 600EX-RT's and just recently picked up a couple more Cheetah L4500 battery packs along with two of 1 to 2 cords and 6 Canon power cords so that I can do some 1/1 HSS with mine.

I have another idea for using the CL 180 / QTR combo but it will be towards the end of the week before I will be able to do so and at that time I will share my idea and the results.


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