How do you take a photo of molten glass?

Have your say on issues related to using a DSLR camera.

Moderator: Moderators

Forum rules
Please ensure that you have a meaningful location included in your profile. Please refer to the FAQ for details of what "meaningful" is.

How do you take a photo of molten glass?

Postby glamy on Mon Oct 24, 2005 7:41 pm

Hi all,
I am not happy with the result, even though I was expecting some difficulties.
Any opinions?
Image
Cheers,
Gerard
User avatar
glamy
Senior Member
 
Posts: 1112
Joined: Wed Dec 29, 2004 8:38 pm
Location: S/W Sydney- D70+D2X

Postby Oneputt on Mon Oct 24, 2005 7:44 pm

Yes - one comment. It is an interesting abstract.
"The good thing about meditation is that it makes doing nothing respectable"

D3 - http://www.oneputtphotographics.com
User avatar
Oneputt
Senior Member
 
Posts: 3174
Joined: Tue Jan 04, 2005 3:58 pm
Location: Stuck in traffic Maroochydore.

Postby Antsl on Mon Oct 24, 2005 7:45 pm

My initial hunch is that this image has been flooded with IR light, hence the soft fogging. What was the EXIF data and, if you shot RAW, what colour temperature was this set for?
User avatar
Antsl
Senior Member
 
Posts: 678
Joined: Sun Jun 19, 2005 1:22 am
Location: North Melbourne, Victoria!

Postby marcotrov on Mon Oct 24, 2005 7:46 pm

Glamy I would have guessed for a thousand years and not have known what the hell it was but as oneputt has said very interesting image and certainly abstract.
cheers
marco
marcotrov
Senior Member
 
Posts: 2577
Joined: Mon Feb 28, 2005 2:21 pm
Location: Cairns, Queensland, Australia

Postby glamy on Mon Oct 24, 2005 8:25 pm

Antsl,
The exif says: 1/30 at f20 4650K. I'll also try with an IR filter. I was expecting a better abstract than that... really looks good in reality.
Cheers,
Gerard
User avatar
glamy
Senior Member
 
Posts: 1112
Joined: Wed Dec 29, 2004 8:38 pm
Location: S/W Sydney- D70+D2X

Postby Antsl on Mon Oct 24, 2005 8:49 pm

Now this may sound a little Irish (thats the Leprecharn in me) however I would be inlcined to keep the cameras exposure to the furnace to an absolute minimum when making these images ....

Set the camera up on a tripod and preset absolutely everything including the focus and then move the camera into place with a sheet of silver foil (preferably wrapped about some solid card) in front of the camera to protect it from the heat. Next I would drop the card just long enough to make the exposure and the pull it up quick before reviewing. My thoughts are that heat from radiant energy would probably build up quickly in the mirror box as you pointed the camera even for a short period of time, therefore effecting the image.

Have another go and try this and see if it makes a difference.
User avatar
Antsl
Senior Member
 
Posts: 678
Joined: Sun Jun 19, 2005 1:22 am
Location: North Melbourne, Victoria!

Postby glamy on Mon Oct 24, 2005 9:21 pm

Antsl,
You are not wrong that's why I used the 70-200 at 200mm. There is no room for tripod and the floor vibrates a fair bit. I'll try putting a fan to blow the heat away...
Cheers,
Gerard
User avatar
glamy
Senior Member
 
Posts: 1112
Joined: Wed Dec 29, 2004 8:38 pm
Location: S/W Sydney- D70+D2X

Postby Antsl on Mon Oct 24, 2005 9:36 pm

A fan is not going to stop radiant energy... it is like sitting in your car on a sunny day with the windows up and hoping the 20 knots of wind outside will help cool you down!

My advice ... try and keep the ISO higher ... 400 to 800 range and try working with faster shutter speeds while maintaining reasonable apertures of f11 or f16.

Where is the plant and what are they manufacturing ... bottles, windows?
User avatar
Antsl
Senior Member
 
Posts: 678
Joined: Sun Jun 19, 2005 1:22 am
Location: North Melbourne, Victoria!

Postby glamy on Mon Oct 24, 2005 9:43 pm

That's where I work. we make glasswool. If the fan does not make a difference to the camera, it will help my sweating!
Cheers,
Gerard
User avatar
glamy
Senior Member
 
Posts: 1112
Joined: Wed Dec 29, 2004 8:38 pm
Location: S/W Sydney- D70+D2X

Postby Antsl on Mon Oct 24, 2005 10:37 pm

What an amazing environment to work in. I have made photographs in a foundry in the past and some of the storys that I have heard from staff can put you on your toes. My guess is that you are working in the same temperature range (1200+). What is the glass wool getting used for ... thermal insulation or is it more exotic uses?
User avatar
Antsl
Senior Member
 
Posts: 678
Joined: Sun Jun 19, 2005 1:22 am
Location: North Melbourne, Victoria!

Postby glamy on Tue Oct 25, 2005 6:41 pm

Antsl,
We make glasswool insulation (CSR Bradford Insulation). At this stage the glass is around the 1150 mark. Safety always comes first, and sometimes there are situations where it is most critical not to panic and "take two" before acting. Spare a thought for me tomorrow, I'll be working in dust and heat for 12 hours... The older you get the harder it is! Here is another pic:
Image
Cheers,
Gerard
User avatar
glamy
Senior Member
 
Posts: 1112
Joined: Wed Dec 29, 2004 8:38 pm
Location: S/W Sydney- D70+D2X

Postby LOZ on Tue Oct 25, 2005 6:51 pm

Try using a mirror :idea:
User avatar
LOZ
Senior Member
 
Posts: 615
Joined: Fri Jan 14, 2005 6:47 pm
Location: Hills

Postby kipper on Tue Oct 25, 2005 6:51 pm

I did about 6months of my electrical apprenticeship at the Australian Glass Manufacturers in Spotswood. Quite an interesting time, and I know the glass is bloody hot :)

The radiant heat that comes from the furnance and the moulding machines was insane. You're quite game to be taking in your camera to these sort of environments.
Darryl (aka Kipper)
Nikon D200
kipper
Senior Member
 
Posts: 3738
Joined: Thu Nov 04, 2004 9:23 pm
Location: Hampshire, UK


Return to General Discussion

cron