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From: R D S on 4 Aug 2010 10:14
Hi,
In my quest for the ever elusive white background, I've just bought a
light tent. It's an 80cm cube with a slit on the front to poke the lens
through.

I have a standard 500 watt halogen floodlight pointing at it and i'm
getting reasonably nice pics, naturally they would be better if I had
better bulbs.

Can I get a bulb for this lamp? (This sort of thing http://
www.maplin.co.uk/Module.aspx?ModuleNo=222896&C=Froogle&U=222896&T=Module)

What am I looking for in terms of colour? 5400k?

If I need new lamps then what would I be better off buying, do I need
some with a larger reflective surface? What wattage?

Frankly any help or input would be appreciated.
From: Trev on 4 Aug 2010 11:39

"R D S" <rsandr(a)yahoo.com> wrote in message
news:8btatlFrfsU1(a)mid.individual.net...
> Hi,
> In my quest for the ever elusive white background, I've just bought a
> light tent. It's an 80cm cube with a slit on the front to poke the lens
> through.
>
> I have a standard 500 watt halogen floodlight pointing at it and i'm
> getting reasonably nice pics, naturally they would be better if I had
> better bulbs.
>
> Can I get a bulb for this lamp? (This sort of thing http://
> www.maplin.co.uk/Module.aspx?ModuleNo=222896&C=Froogle&U=222896&T=Module)
>
> What am I looking for in terms of colour? 5400k?
>
> If I need new lamps then what would I be better off buying, do I need
> some with a larger reflective surface? What wattage?
>
> Frankly any help or input would be appreciated.

With Digital colour balance is not that important as it can be adjusted in
camera or in a Graphics editor. Just don't mix the light sources.
What bulbs would be better ? Two lamps would give better balance one on
each side but the point of a tent is to defuse the light and give an even
balance. Unless your moving on to bigger objects or people I expect your ok
as you are.

From: R D S on 4 Aug 2010 11:50

"Trev" <trevbowden(a)dsl.pipex.com> wrote in message
news:i3c1lq$mps$1(a)news.eternal-september.org...
>
> With Digital colour balance is not that important as it can be adjusted in
> camera or in a Graphics editor.

I've got the EV at +1, pics are coming out a bit pinky brown in the
background, I suspect I need to adjust the white balance towards blue? I can
do this on the camera but I can't see how to do it in the software.


From: Trev on 4 Aug 2010 12:26

"R D S" <rsandr(a)yahoo.com> wrote in message
news:8btghvFtuU1(a)mid.individual.net...
>
> "Trev" <trevbowden(a)dsl.pipex.com> wrote in message
> news:i3c1lq$mps$1(a)news.eternal-september.org...
>>
>> With Digital colour balance is not that important as it can be adjusted
>> in camera or in a Graphics editor.
>
> I've got the EV at +1, pics are coming out a bit pinky brown in the
> background, I suspect I need to adjust the white balance towards blue? I
> can do this on the camera but I can't see how to do it in the software.
>

Not knowing what software you are using but Colour balance Would be the
place to look. Like wise Is the camera using automatic colour balance. Your
lamps will be around 3800K

From: Woody on 4 Aug 2010 13:45
"Trev" <trevbowden(a)dsl.pipex.com> wrote in message
news:i3c4ct$21c$1(a)news.eternal-september.org...
>
> "R D S" <rsandr(a)yahoo.com> wrote in message
> news:8btghvFtuU1(a)mid.individual.net...
>>
>> "Trev" <trevbowden(a)dsl.pipex.com> wrote in message
>> news:i3c1lq$mps$1(a)news.eternal-september.org...
>>>
>>> With Digital colour balance is not that important as it can
>>> be adjusted in camera or in a Graphics editor.
>>
>> I've got the EV at +1, pics are coming out a bit pinky brown
>> in the background, I suspect I need to adjust the white
>> balance towards blue? I can do this on the camera but I can't
>> see how to do it in the software.
>>
>
> Not knowing what software you are using but Colour balance
> Would be the place to look. Like wise Is the camera using
> automatic colour balance. Your lamps will be around 3800K
>



I have one as well and find it a lot easier to use flash.
Assuming you are using a SLR, put one on one side on a cable and
the other on a slave on the other side. Works a treat.

If you are using it for security pics - jewellery etc - consider
a ring flash or similar. They work ace with light tents.


--
Woody

harrogate three at ntlworld dot com


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