[LRflex] Re: Concentration

David,

I¹m glad you couldn¹t ³correct² the light pouring in from the upper left
corner. It give an air of mystery and a needed accent of color to an
otherwise mostly monochromatic shot. Industrial art at its best, I would
say; Fortune magazine stuff, perhaps.

And I hope they weren¹t concentrating the ore by floating it on mercury, the
way they used to do with gold.

All the best,

Bill

On 7/15/08 7:36 AM, "David Young" <dsy@xxxxxxxxxxxxxxx> wrote:

> This,should be the last of the mine shots, from last Friday.
> 
> After the ore is mined, it must be milled down to a powder and then
> "concentrated" to about 40% copper. The dried concentrate is then shipped out,
> for refining.
> 
> Photographing the SAG & Ball mills proved almost impossible, at least in
> colour.  The lighting used is one that I've found impossible to correct.  You
> can see it filtering through from the far left, in the shot below.
> 
> The lighting on the concentration side is a more "normal" mercury vapour type.
> Difficult, but not impossible to work with.
> 
> Both sides suffer from tremendous vibration from the mills.   I found a tripod
> useless, for the catwalks vibrated unbelievably!  It proved better to hand
> hold and here the in-body IS of the Oly E3 proved invaluable!  The video crews
> found it impossible to work without a SteadiCam.  (Exposure was 1/50th - f3.5
> - ISO 1250.
> 
> The noise was also unbelievably loud, even though we had good quality ear
> protection.  However, not even a Leica could do anything about that!  (Normal
> sound levels in the mill are around 94db ... and in spots it gets quite loud!)
> 
> In this shot, the slurry is "floated" (in what, they didn't say) to separate
> the copper, in what is the world's third largest concentrating facility.
> 
> http://www.furnfeather.net/Temps/Concentration.htm
> 
> Sorry Ted... I couldn't shoot "from the shadow side", as the only shadows were
> from the overhead lighting!
> 
> If anyone's interested: a brief overview of the HVC operation is at:
> http://www.mining-technology.com/projects/highland/
> 
> Comments, criticism welcomed, as always.
> 
> Cheers!
> 
> ---
> 
> David Young,     
> Logan Lake, CANADA
> 
> Limited Edition Prints at: www.furnfeather.net <http://www.furnfeather.net/>
> Personal Web-site at: www.main.furnfeather.net
> <http://www.main.furnfeather.net/>
> Stock Photography at: http://tinyurl.com/2amll4
> 
>

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