Topics

POWDER EXPLOSION

Mauricio Pardo
 

First time in CML. Not sure if this is the right subrgroup to post my question.
I am shooting a commercial for a Milo / Nesquick type of chocolate milk modifier. Need to produce a powder explosion fo the product over a neutral background.
It must look like an explosion from the center of frame. Shooting with a Phantom. Any advice at how to phisically / mechanically create this explosion ? Do I need post to erase the rig that produces the explosion ? At what speed are this particle explosions shot ?
Thanks for the advice.

Geoff Boyle
 

I normally don't want people to post more than once but please post this in general and sign as the rules require.

Good luck

Geoff
Sysadmin

Geoff Boyle NSC


From: cml-mentor@... <cml-mentor@...> on behalf of Mauricio Pardo via Cml.News <maofilm=yahoo.com@...>
Sent: Sunday, September 30, 2018 4:58:00 PM
To: cml-mentor@...
Subject: [cml-mentor] POWDER EXPLOSION
 
First time in CML. Not sure if this is the right subrgroup to post my question.
I am shooting a commercial for a Milo / Nesquick type of chocolate milk modifier. Need to produce a powder explosion fo the product over a neutral background.
It must look like an explosion from the center of frame. Shooting with a Phantom. Any advice at how to phisically / mechanically create this explosion ? Do I need post to erase the rig that produces the explosion ? At what speed are this particle explosions shot ?
Thanks for the advice.

Mako Koiwai
 

Really, you need an Expert with a Explosive License. Typically production would hire a Prop Master or EFX person, that would recommend a licensed Explosive Expert.

Makofoto, Detroit, MI


Luis Gomes
 

Balloons filled with colored powder and needles?
No explosive needed

Have friends here in Finland that are experts on dynamite and sh....

OneFx Finland.

Luís 
Finland. 
16 hours on my feet today 
Camera. 



--
Gomes.luis@...
http://fi.linkedin.com/pub/luis-gomes/20/11b/335/
Freelancer video Professional. 
Finland. 

Mitch Gross
 

Don’t use explosives of any kind. 

- Dangerous 
- Likely to produce spark & smoke, ruining shot. 
- Could ignite powder (SUPER dangerous)

Instead use compressed air in a tube to blow out the powder. Can be extremely effective. Depending on the size effect you need it may require a canister far larger than the kind camera assistants use. 


Mitch Gross
Cinema Product Manager 
Panasonic System Solutions Company of North America
New York

On Sep 30, 2018, at 2:10 PM, Mako Koiwai <mako1foto@...> wrote:

Really, you need an Expert with a Explosive License. Typically production would hire a Prop Master or EFX person, that would recommend a licensed Explosive Expert.

Makofoto, Detroit, MI


Mako Koiwai
 

Balloons filled with colored powder and needles

***********

I’m sorry, but you don’t seem to understand Powder Explosions.


We did demo’s simply with flour. Amazing how much explosive force can be created.


Makofoto, Southwest Airlines, over the Rockies

Matt
 

For a non-pyrotechnic "explosion" use an "air mortar" (it uses compressed air, rather than combustion)...

Rentable from most SFX companies.  It is best to have a trained person, who's only responsibility is the mortar.  (propelled particles can still cause injuries).

(I several of my own, when I was in film school)

Matt Efsic
Camera 
Ventura, CA


On Sun, Sep 30, 2018 at 9:09 AM Mauricio Pardo via Cml.News <maofilm=yahoo.com@...> wrote:
First time in CML. Not sure if this is the right subrgroup to post my question.
I am shooting a commercial for a Milo / Nesquick type of chocolate milk modifier. Need to produce a powder explosion fo the product over a neutral background.
It must look like an explosion from the center of frame. Shooting with a Phantom. Any advice at how to phisically / mechanically create this explosion ? Do I need post to erase the rig that produces the explosion ? At what speed are this particle explosions shot ?
Thanks for the advice.

Matt
 

Correction:

"I built several of my own, when I was in film school."


On Sun, Sep 30, 2018 at 2:13 PM Matt Efsic <f6film@...> wrote:
For a non-pyrotechnic "explosion" use an "air mortar" (it uses compressed air, rather than combustion)...

Rentable from most SFX companies.  It is best to have a trained person, who's only responsibility is the mortar.  (propelled particles can still cause injuries).

(I several of my own, when I was in film school)

Matt Efsic
Camera 
Ventura, CA

On Sun, Sep 30, 2018 at 9:09 AM Mauricio Pardo via Cml.News <maofilm=yahoo.com@...> wrote:
First time in CML. Not sure if this is the right subrgroup to post my question.
I am shooting a commercial for a Milo / Nesquick type of chocolate milk modifier. Need to produce a powder explosion fo the product over a neutral background.
It must look like an explosion from the center of frame. Shooting with a Phantom. Any advice at how to phisically / mechanically create this explosion ? Do I need post to erase the rig that produces the explosion ? At what speed are this particle explosions shot ?
Thanks for the advice.

Luis Gomes
 

I am sorry. Bad grammar. Not “powder” but that stuff they throw at each other on rave parties. 
Have no idea but my friends sells it. 

Luís. 
Need knee pads
Camera
Finland. 
--
Gomes.luis@...
http://fi.linkedin.com/pub/luis-gomes/20/11b/335/
Freelancer video Professional. 
Finland. 

Luis Gomes
 

 
Edited

Apologies if this repeats whats in the videos..
 
My mum was a science teacher.   One of her best demos was to get an empty tin (custard powder or alike), boar a small hole in the side and put syringe in the hole.  You then stick a night light candle in the tin, light it and put the lid on.  Then using the syringe blow a very small amount of flour into the flame.
 
If done well, the lid can easily hit the ceiling of the science lab...

Michael Sanders: Director of Photography.  London based but works globally.
 
reel/credits/kit: www.mjsanders.co.uk    m: +44 (0) 7976 269818

On 30 Sep 2018, at 21:58, Mako Koiwai <mako1foto@...> wrote:

Stephen Price
 

There are many ways to achieve this, all of which will produce slightly different effects.  You really should use a proper special effects company or specialist. 

I have supplied Phantom cameras for these types of shots many times. Explosive charges are often used and are very effective, but you must used a trained specialist. A bag with powder and a charge in it, either hung or mounted on a black metal tube is often used and will produce what a similar effect to what is in your references. Some post may be required to paint our the detonator wire or mount, but often the shot is not used in its entirety.

Sharpening the shutter also can be beneficial, but you will need a lot of light.

 


Stephen Price
Love High Speed
07870260918



On 1 Oct 2018, at 08:01, Michael Sanders via Cml.News <glowstars=me.com@...> wrote:

Apologies if this repeats whats in the videos..

My my was a science teacher and one of her best demos was to get an empty tin (custard powder or alike), boar a small hole in the side and put syringe in the hole.  You then Stick a night light candle in the tin, light it and put the lid on.  Then using the syringe blow a very small amount of flour into the flame.

If done well, the lid can easily hit the ceiling of the science lab...

Michael Sanders: Director of Photography.  London based but works globally.

reel/credits/kit: www.mjsanders.co.uk    m: +44 (0) 7976 269818

On 30 Sep 2018, at 21:58, Mako Koiwai <mako1foto@...> wrote:

Denny Clairmont
 

Hello,
When I was a kid we used corn flour and a empty metal food can. Can would fly about 20 feet in the air.

Grain silos have suppresses in them to prevent sparks in them as they will have so much dust in them from wheat they explode if there is a spark in the silo from the dust when they are filling them.
                                                                         Denny






In a message dated 10/1/2018 12:28:29 AM Pacific Standard Time, glowstars=me.com@... writes:

Apologies if this repeats whats in the videos..

My my was a science teacher and one of her best demos was to get an empty tin (custard powder or alike), boar a small hole in the side and put syringe in the hole.  You then Stick a night light candle in the tin, light it and put the lid on.  Then using the syringe blow a very small amount of flour into the flame.

If done well, the lid can easily hit the ceiling of the science lab...

Michael Sanders: Director of Photography.  London based but works globally.

reel/credits/kit: www.mjsanders.co.uk    m: +44 (0) 7976 269818

On 30 Sep 2018, at 21:58, Mako Koiwai <mako1foto@...> wrote: