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FORUMS General Gear Talk Flash and Studio Lighting
Thread started 10 May 2016 (Tuesday) 16:38
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Affordable Boom

 
RicoTudor
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Jul 26, 2016 23:00 |  #16

RDKirk wrote in post #18078056 (external link)
Do not use that cheap, common double-knuckle design. That design is a liability settlement waiting to happen.

No liability issue if you use them properly. When loosening, first clear the set, turn CCW with a sharp action, then run for your life!


Canon, Nikon, Contax, Leica, Sony, Profoto.

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msowsun
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Post has been edited over 1 year ago by msowsun.
Jul 27, 2016 08:08 |  #17

RDKirk wrote in post #18078056 (external link)
Yeah, booms seem to come in three categories: Scary, expensive, and that one.

It's a knockoff of a Manfrotto design, but it's still okay as far as I can see.

Do not use that cheap, common double-knuckle design. That design is a liability settlement waiting to happen.

What do you mean by double knuckle design?

This type?

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RDKirk
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Jul 27, 2016 08:39 |  #18

msowsun wrote in post #18078912 (external link)
What do you mean by double knuckle design?

This type?
thumbnailHosted photo: posted by msowsun in
./showthread.php?p=180​78912&i=i124423857
forum: Flash and Studio Lighting

Yep.




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msowsun
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Post has been last edited over 1 year ago by msowsun. 3 edits done in total.
Jul 27, 2016 09:59 |  #19

Here is my boom set-up..... The whole thing costs about $165 including the softbox.

I have been using the "double knuckle" dual head clamp type without problems. It came with a Cowboy Studios 7ft Pro Boom Arm - (501 Boom Arm Only)

The "double knuckle" works for me because of the stand I use it with. It is actually a speaker stand with a 1 3/8 " center column used with a 1 3/8" to 1" adapter. The adapter provides a shoulder for the dual head clamp to sit on when you loosen it. This makes for very easy adjustments without having to worry about the whole thing sliding down the pole when you loosen it.

The speaker stand is much larger, stronger, and more stable than a typical lighting stand. It extends to 74" and supports up to 100lbs. Mine is free because I just borrow it from my son's PA system. Even if you have to buy one at $40, they are quite economical.

I am also using the Cowboy Studio 37" Octagon Softbox. The softbox works great but the speedlite bracket was junk so I replaced with a with a S-Type bracket.

$35 Cowboy Studio boom arm
$40 speaker stand
$9 adapter

$84 total for Boom Arm and Stand
$81 total for Softbox and S-Type bracket

IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/photo16/5D3_5046.jpg

IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/photo16/5D3_5038.jpg

$35 Cowboy Studio boom arm http://www.cowboystudi​o.com ...1%20boom%20arm%20on​ly.htm (external link)


$40 speaker stand http://www.bhphotovide​o.com ..._steel_speaker_stan​d.html (external link)
IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/photo16/001xx.jpg~original
IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/photo16/001y.jpg~original

$9 adapter http://www.bhphotovide​o.com ..._Stand_Adapter_1_37​5.html (external link)
IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/photo16/001z.jpg~original



$56 Softbox http://www.cowboystudi​o.com ...7in-speedlite-softbox.htm (external link)
IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/photo16/002xxx.jpg~original


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Use this $25 S-Type bracket instead http://www.bhphotovide​o.com ..._for_strobies_s_typ​e.html (external link)
IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/photo16/002z.jpg~original

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RDKirk
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Post has been edited over 1 year ago by RDKirk.
Jul 27, 2016 11:26 |  #20

The problem with the "double knuckle" is that one lever loosens two components, both elevation and tilt...and the simultaneous release of both under weight is always tricky to control.

In your case, you have that adapter on the music stand that keeps elevation fixed in place, which is a unique difference. Using a music stand does more than one thing for you.




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msowsun
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Jul 27, 2016 11:47 |  #21

RDKirk wrote in post #18079057 (external link)
The problem with the "double knuckle" is that one lever loosens two components, both elevation and tilt...and the simultaneous release of both under weight is always tricky to control.

In your case, you have that adapter on the music stand that keeps elevation fixed in place, which is a unique difference. Using a music stand does more than one thing for you.


These double clamps are not all the same. I do have one that works as you describe but this one has heavy serrated teeth and you can loosen one side without loosening the other side.


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5D3 / Samyang 14mm 2.8 / EF 40mm 2.8 STM / EF 50mm 1.8 STM / EF 100mm 2.0 USM / EF 100mm 2.8 USM Macro / EF 24-105mm IS /
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ThreeHounds
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Jul 27, 2016 12:18 as a reply to RDKirk's post |  #22

I have one on my Kupo C stand, but the 2 sides have independent studs for securing.


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albailey
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Jul 27, 2016 13:21 as a reply to ThreeHounds's post |  #23

Probably the best price for a boom stand. This is just like the cheetah stand boom stand but less expensive. Just $75.00

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albailey
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Jul 27, 2016 13:22 as a reply to albailey's post |  #24

Measurements

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msowsun
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Jul 27, 2016 14:33 |  #25

ThreeHounds wrote in post #18079107 (external link)
I have one on my Kupo C stand, but the 2 sides have independent studs for securing.


I believe all these double clamps have 2 handles sharing a single stud.

On some there is a floating stud where loosening one side loosens the other side as well.

With others the stud is fixed and the 2 sides can be loosened independently.


Mike Sowsun / S110 / SL1 / EF-S 24mm STM / EF-S 10-18mm STM / EF-S 18-55mm STM / EF-S 18-135mm STM / EF-S 55-250mm STM
5D3 / Samyang 14mm 2.8 / EF 40mm 2.8 STM / EF 50mm 1.8 STM / EF 100mm 2.0 USM / EF 100mm 2.8 USM Macro / EF 24-105mm IS /
EF 70-200mm 2.8L IS Mk II / EF 1.4x II
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ThreeHounds
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Jul 27, 2016 15:27 as a reply to msowsun's post |  #26

You are correct. I just disassembled mine, 1 stud that is affixed to one knucle, passes through the second knuckle, threaded on both ends. Same result, both can be loosened independently.
It is a bit of a hassle to adjust in the vertical, so I haven't removed it in about 3 years and forgot the exact design, lol.


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bobbyz
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Jul 29, 2016 19:07 |  #27

mpstan wrote in post #18076504 (external link)
That sure looks a lot like the one B and H sells under the Impact line.
http://www.bhphotovide​o.com ..._basb_boom_arm_stee​l.html (external link)

I will either get that one or the Kupo, which appears perhaps slightly more robust. I just need to figure out if the spigot on my PCB Heavy Duty Stand will adapt well. Thanks very much Martin and OceanRipple

I would use the boom only on nice chrome stands, like C-stand, wheeled stands


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RicoTudor
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Jul 30, 2016 05:34 |  #28

RDKirk wrote in post #18079057 (external link)
The problem with the "double knuckle" is that one lever loosens two components, both elevation and tilt...and the simultaneous release of both under weight is always tricky to control.

I believe "double knuckle" implies independent locking on each side. If both sides loosen with one handle, the item is called a "gag". A couple of gags (Matthews) are shown below:

IMAGE: http://patternassociates.com/rico/fm/mattgag.jpg

I use gags all the time, even in place of grip heads because they are secured to top-of-stand with compression rather than the pointy end of a screw. It does require extra attention when adjusting them so they don't fall off and destroy things. :) I would never use one to secure a boom, although some manufacturers think it's a fine way to save a buck.

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drisley
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Mar 02, 2017 00:12 |  #29

I ended up getting a Westcott 6'5 Complete Boom from BHPhoto for an great price, but I see it's discontinued now.


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golfecho
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Mar 04, 2017 07:19 |  #30

msowsun wrote in post #18079076 (external link)
These double clamps are not all the same. I do have one that works as you describe but this one has heavy serrated teeth and you can loosen one side without loosening the other side.

thumbnailHosted photo: posted by msowsun in
./showthread.php?p=180​79076&i=i203416398
forum: Flash and Studio Lighting

Where did you get this double clamp?


Facebookexternal link or Websiteexternal link

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